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<meta name="description" content="This document provides a quick reference to the Web Sustainability Guidelines (WSG) 1.0 specification. The content is laid out in a table, with Success Criteria, Impact, Effort, and GRI ratings noted for each guideline. Checkboxes are provided for those individuals or groups wishing to work through the list (note your progress will not be saved), and a print-friendly (PDF) version is also available to audit your work as part of an exercise.">
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<h1 id="title" class="title">Quick Reference for Web Sustainability Guidelines (WSG) 1.0</h1>
<p id="w3c-state">
<a href="https://www.w3.org/standards/types#reports">Draft Community Group Report</a>
<time class="dt-published" datetime="2024-12-17">17 December 2024</time>
</p>
<dl>
<dt>Latest published version:</dt><dd>
<a href="https://w3c.github.io/sustyweb/quickref.html">https://w3c.github.io/sustyweb/quickref.html</a>
</dd>
<dt>Latest editor's draft:</dt><dd><a href="https://w3c.github.io/sustyweb/quickref.html">https://w3c.github.io/sustyweb/quickref.html</a></dd>
<dt>Editor:</dt><dd class="editor p-author h-card vcard" data-editor-id="49702">
<a class="u-url url p-name fn" href="https://alexanderdawson.com/">Alexander Dawson</a>
</dd>
<dt>Chairs:</dt><dd class="editor p-author h-card vcard">
<a class="u-url url p-name fn" href="https://inesakrap.com/">Ines Akrap</a> (<span class="p-org org h-org">Storyblok</span>)
</dd><dd class="editor p-author h-card vcard">
<a class="u-url url p-name fn" href="https://civicactions.com/">Mike Gifford</a> (<span class="p-org org h-org">CivicActions</span>)
</dd><dd class="editor p-author h-card vcard" data-editor-id="62394">
<a class="u-url url p-name fn" href="https://www.mightybytes.com/">Tim Frick</a> (<span class="p-org org h-org">Mightybytes</span>)
</dd>
<dt>Feedback:</dt><dd>
<a href="https://github.com/w3c/sustyweb/">GitHub w3c/sustyweb</a>
(<a href="https://github.com/w3c/sustyweb/pulls/">pull requests</a>,
<a href="https://github.com/w3c/sustyweb/issues/new/choose">new issue</a>,
<a href="https://github.com/w3c/sustyweb/issues/">open issues</a>)
</dd>
</dl>
<p class="copyright">
<a href="https://www.w3.org/policies/#copyright">Copyright</a>
©
2024
the Contributors to the Quick Reference for Web Sustainability Guidelines (WSG) 1.0
Specification, published by the
<a href="https://www.w3.org/groups/cg/sustyweb">Sustainable Web Design Community Group</a> under the
<a href="https://www.w3.org/community/about/agreements/cla/">W3C Community Contributor License Agreement (CLA)</a>. A human-readable
<a href="https://www.w3.org/community/about/agreements/cla-deed/">summary</a>
is available.
</p>
<hr title="Separator for header">
</div>
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<p><strong>Note:</strong> Several sections of this specification have been superseded. Please refer to the <a href="https://www.w3.org/groups/ig/sustainableweb/">Sustainable Web Interest Group</a> who are developing the latest version of the <a href="https://w3c.github.io/sustainableweb-wsg/">Web Sustainability Guidelines</a>.</p>
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</div>
<section id="abstract" class="introductory"><h2>Abstract</h2>
<p>This document provides a quick reference to the <a href="https://w3c.github.io/sustyweb/">Web Sustainability Guidelines</a> (<abbr title="Web Sustainability Guidelines">WSG</abbr>) 1.0 specification. The content is laid out in a table, with Success Criteria, Impact, Effort, and <abbr title="Global Reporting Initiative">GRI</abbr> ratings noted for each guideline. Checkboxes are provided for those individuals or groups wishing to work through the list (note your progress will not be saved), and a <a href="https://w3c.github.io/sustyweb/checklist.pdf">print-friendly</a> (<abbr title="Portable Document Format">PDF</abbr>) version is also available to audit your work as part of an exercise.</p>
<p>Help improve this page by sharing your ideas, suggestions, or comments via <a href="https://github.com/w3c/sustyweb/issues/">GitHub issues</a>.</p>
</section>
<section id="sotd" class="override introductory"></section><nav id="toc"><h2 class="introductory" id="table-of-contents">Table of Contents</h2><ol class="toc"><li class="tocline"><a class="tocxref" href="#abstract">Abstract</a></li><li class="tocline"><a class="tocxref" href="#user-experience-design"><bdi class="secno">1. </bdi>User-Experience Design</a></li><li class="tocline"><a class="tocxref" href="#web-development"><bdi class="secno">2. </bdi>Web Development</a></li><li class="tocline"><a class="tocxref" href="#hosting-infrastructure-and-systems"><bdi class="secno">3. </bdi>Hosting, Infrastructure and Systems</a></li><li class="tocline"><a class="tocxref" href="#business-strategy-and-product-management"><bdi class="secno">4. </bdi>Business Strategy and Product Management</a></li><li class="tocline"><a class="tocxref" href="#acknowledgments"><bdi class="secno">A. </bdi>Acknowledgments</a><ol class="toc"><li class="tocline"><a class="tocxref" href="#participants-of-the-swd-cg-active-in-the-development-of-this-document"><bdi class="secno">A.1 </bdi>Participants of the SWD-CG Active in the Development of This Document</a></li></ol></li></ol></nav>
<section id="user-experience-design"><div class="header-wrapper"><h2 id="x1-user-experience-design"><bdi class="secno">1. </bdi>User-Experience Design</h2><a class="self-link" href="#user-experience-design" aria-label="Permalink for Section 1."></a></div>
<table>
<tbody>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#undertake-systemic-impacts-mapping">2.1</a></td>
<td colspan="5">Undertake Systemic Impacts Mapping</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.1a"></td><td colspan="5"><label for="2.1a">Any negative external variables affecting a product or service are displayed in a publicly available resource, identifying where your product's sustainable impact can be diminished (systemic design).</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#assess-and-research-visitor-needs">2.2</a></td>
<td colspan="5">Assess and Research Visitor Needs</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.2a"></td><td colspan="5"><label for="2.2a">Primary and secondary target visitors are identified, and their needs are defined through quantitative or qualitative research, testing, or analytics, ensuring your visitors and affected communities remain a close part of the research and testing process.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.2b"></td><td colspan="5"><label for="2.2b">Potential visitor constraints like the device age, operating system version, browser, and connection speeds are accounted for when designing user-experiences.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.2c"></td><td colspan="5"><label for="2.2c">The team has researched and identified whether a technical, material, or human constraint might require an adapted version of the product or service that reduces barriers or improves access to content.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.2d"></td><td colspan="5"><label for="2.2d">Barriers to access (pain points or dark / deceptive design patterns) have been identified in the user-research with visitors for removal.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.2e"></td><td colspan="5"><label for="2.2e">All stakeholders including your visitors have been assigned an equitable role in the decision-making process when undertaking research, identifying needs, or conducting iterative design work.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>High</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#research-non-visitor-s-needs">2.3</a></td>
<td colspan="5">Research Non-Visitor's Needs</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.3a"></td><td colspan="5"><label for="2.3a">A plan of action has been established for non-users and other stakeholders who might be passively impacted by a digital product or service, such as neighbors accepting parcels, traffic jams due to deliveries, etc. Research their needs and understand how they might be affected.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#consider-sustainability-in-early-ideation">2.4</a></td>
<td colspan="5">Consider Sustainability in Early Ideation</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.4a"></td><td colspan="5"><label for="2.4a">Wireframes, and rapid prototyping are utilized to quickly build consensus, reduce risk, and lower the number of resources needed to build features.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.4b"></td><td colspan="5"><label for="2.4b">Users are involved within the iteration and design process using participatory design, and when conducting user-testing reach out to your community to help improve your product by allowing them to apply their knowledge and experience to your product or service.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Low</td><td>Low</td><td>Low</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#account-for-stakeholder-issues">2.5</a></td>
<td colspan="5">Account for Stakeholder Issues</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.5a"></td><td colspan="5"><label for="2.5a">All stakeholders have been considered using a human-centered approach during the brainstorming process.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.5b"></td><td colspan="5"><label for="2.5b">The planetary needs and ecological boundaries of a project have been taken into account during the brainstorming process. This can include creating non-users, non-human (animal, planet) personas, or climate-specific user stories and sprints.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#create-a-lightweight-experience-by-default">2.6</a></td>
<td colspan="5">Create a Lightweight Experience by Default</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.6a"></td><td colspan="5"><label for="2.6a">The path taken to access the service (the initial contact with the website or service) should be as efficient and as simple as possible (time required to complete an action displayed, reducing too much choice, ensuring visitors know what's required at the start of a complex set of steps, etc).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.6b"></td><td colspan="5"><label for="2.6b">The users journey (when browsing an accessed website or service) should be as smooth as possible. User-research is key, as is building on established design patterns that people already understand.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.6c"></td><td colspan="5"><label for="2.6c">Visitors can complete tasks without distractions or non-essential features getting in the way.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.6d"></td><td colspan="5"><label for="2.6d">Visitors see only information that is relevant to their experience, without non-essential information being displayed on the screen.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.6e"></td><td colspan="5"><label for="2.6e">Ensure that actionable information such as pop-up or modal windows can only be initiated by the visitor.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#avoid-unnecessary-or-an-overabundance-of-assets">2.7</a></td>
<td colspan="5">Avoid Unnecessary or an Overabundance of Assets</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.7a"></td><td colspan="5"><label for="2.7a">Decorative design is used only when it improves the user-experience, and unnecessary assets or ones that fail to benefit the visitor or sustainability are removed (or rendered optional and disabled by default).</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>High</td><td>High</td><td>High</td><td>High</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#ensure-navigation-and-way-finding-are-well-structured">2.8</a></td>
<td colspan="5">Ensure Navigation and Way-Finding Are Well-Structured</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.8a"></td><td colspan="5"><label for="2.8a">Provide an accessible, easy-to-use navigation menu with search features that help visitors easily find what they need.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.8b"></td><td colspan="5"><label for="2.8b">Implement an efficient (human-readable) sitemap that is organized and is regularly updated. This helps search engines better index website content, which helps visitors more quickly find what they are looking for.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.8c"></td><td colspan="5"><label for="2.8c">Implement a way for visitors to find out about new content and services.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#respect-the-visitor-s-attention">2.9</a></td>
<td colspan="5">Respect the Visitor's Attention</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.9a"></td><td colspan="5"><label for="2.9a">The visitor can easily control how (and when) they receive information to both improve attention and respect with the visitor.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.9b"></td><td colspan="5"><label for="2.9b">Features that don't distract people or unnecessarily lengthen the time they spend using the product or service have a higher priority than others.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.9c"></td><td colspan="5"><label for="2.9c">Avoid using infinite scroll or related attention-keeping tactics.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#use-recognized-design-patterns">2.10</a></td>
<td colspan="5">Use Recognized Design Patterns</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.10a"></td><td colspan="5"><label for="2.10a">Provide only essential components visible at the time they are needed. Where appropriate, interfaces should deploy visual styles (patterns) that are easily recognized and used.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#avoid-manipulative-patterns">2.11</a></td>
<td colspan="5">Avoid Manipulative Patterns</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.11a"></td><td colspan="5"><label for="2.11a">Avoid what are commonly known as dark patterns, deceptive design, or unethical coding techniques, which manipulate visitors into taking actions not necessarily in their best interest (anti-right click, no-copy, requiring an account to purchase, etc).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.11b"></td><td colspan="5"><label for="2.11b">Advertisements and sponsorships are both ethical and clearly identified with the product or service, only presenting them when they provide real economic and ethical value and don't diminish a visitor's experience.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.11c"></td><td colspan="5"><label for="2.11c">Remove unused and unconsented page tracking.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.11d"></td><td colspan="5"><label for="2.11d">Optimization for search engines, social networks, and third-party services are organically led with good coding practices with user-experience the focus, not manipulating the services to gain greater priority through obfuscating content, pages, websites, or applications with redundancy or non-useful and optimized (to the visitor) material.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Low</td><td>Low</td><td>Low</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#document-and-share-project-outputs">2.12</a></td>
<td colspan="5">Document and Share Project Outputs</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.12a"></td><td colspan="5"><label for="2.12a">The deliverables output, including documentation, are used upstream of the project and produced in ways that will allow it to be reused in subsequent projects.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.12b"></td><td colspan="5"><label for="2.12b">Design functionality and technical specifications are documented so that deliverables are comprehensible by the project team and transferable to the development team.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.12c"></td><td colspan="5"><label for="2.12c">Developers have access to code comments and other View Source affordances which can reduce the burden to access, understand, maintain, and utilize production-ready code as this will reduce redundancy and foster an open source culture.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>High</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#use-a-design-system-to-prioritize-interface-consistency">2.13</a></td>
<td colspan="5">Use a Design System To Prioritize Interface Consistency</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.13a"></td><td colspan="5"><label for="2.13a">A design system is employed based on web standards and recognizable patterns to mutualize interface components and provide a consistent experience for visitors.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#write-with-purpose-in-an-accessible-easy-to-understand-format">2.14</a></td>
<td colspan="5">Write With Purpose, in an Accessible, Easy To Understand Format</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.14a"></td><td colspan="5"><label for="2.14a">Content is written clearly, using plain, inclusive language delivered at an easy-to-understand reading level considering accessibility and internationalization inclusions as required (for example, dyslexia).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.14b"></td><td colspan="5"><label for="2.14b">Content is formatted to support how people read online, including a clear document structure, visual hierarchy, headings, bulleted lists, line spacing, and so on.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.14c"></td><td colspan="5"><label for="2.14c"><abbr title="Search Engine Optimization">SEO</abbr> has been prioritized from the early design stages and throughout a product or service's lifecycle to improve content findability.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#take-a-more-sustainable-approach-to-image-assets">2.15</a></td>
<td colspan="5">Take a More Sustainable Approach to Image Assets</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.15a"></td><td colspan="5"><label for="2.15a">The need for images has been determined considering the quantity, format, and size necessary for implementation.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.15b"></td><td colspan="5"><label for="2.15b">Resize, optimize, and compress each image (outside the browser), offering different sizes (for each image) for different screen resolutions.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.15c"></td><td colspan="5"><label for="2.15c">Provide Lazy Loading to ensure image assets only load when they are required.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.15d"></td><td colspan="5"><label for="2.15d">Let the visitor select the display size, and provide the option to deactivate images.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.15e"></td><td colspan="5"><label for="2.15e">Set up a media management and use policy to reduce the overall impact of images, with criteria for media compression and file formats.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>High</td><td>High</td><td>High</td><td>High</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#take-a-more-sustainable-approach-to-media-assets">2.16</a></td>
<td colspan="5">Take a More Sustainable Approach to Media Assets</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.16a"></td><td colspan="5"><label for="2.16a">The need for video or sound usage (including only when they add visitor value) has been determined, and non-informative media (background media) including autoplaying functionality has been banned or removed.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.16b"></td><td colspan="5"><label for="2.16b">Compress the media according to the visitor's requirements, select the appropriate format, ensure it works across browsers, and avoid embedded player plugins.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.16c"></td><td colspan="5"><label for="2.16c">Any media requiring a lot of data to be downloaded on the client side (including the media itself) has been loaded behind a facade (a non-functional, static, representational element).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.16d"></td><td colspan="5"><label for="2.16d">Let the visitor control media deactivation, giving a choice of resolutions; all while providing alternative resolutions and formats. Also increase visitor awareness by informing them of the length, format, and weight of the media.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.16e"></td><td colspan="5"><label for="2.16e">Set up a media management and use policy to reduce the overall impact of audio and video, with criteria for media compression and file formats.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>High</td><td>High</td><td>High</td><td>High</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#take-a-more-sustainable-approach-to-animation">2.17</a></td>
<td colspan="5">Take a More Sustainable Approach to Animation</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.17a"></td><td colspan="5"><label for="2.17a">Use animation only when it adds value to a visitor's experience, and not for decorative elements.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.17b"></td><td colspan="5"><label for="2.17b">Progressively display an appropriate quantity of animation so as not to overburden the visitor or diminish expected device behavior.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.17c"></td><td colspan="5"><label for="2.17c">Allow visitors to start, stop, pause, or otherwise control animated content.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>High</td><td>High</td><td>High</td><td>High</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#take-a-more-sustainable-approach-to-typefaces">2.18</a></td>
<td colspan="5">Take a More Sustainable Approach to Typefaces</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.18a"></td><td colspan="5"><label for="2.18a">Use standard system-level (web-safe / pre-installed) fonts as much as possible.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.18b"></td><td colspan="5"><label for="2.18b">The number of fonts, and the variants within typefaces (such as weight and characters) are limited within a project, using the most performant file format available.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#provide-suitable-alternatives-to-web-assets">2.19</a></td>
<td colspan="5">Provide Suitable Alternatives to Web Assets</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.19a"></td><td colspan="5"><label for="2.19a">All proprietary file formats (such as <abbr title="Portable Document Format">PDF</abbr>) are offered in <abbr title="Hypertext Markup Language">HTML</abbr> for accessibility and to ensure future availability</label>.</td>
</tr>
<tr>
<td><input type="checkbox" id="2.19b"></td><td colspan="5"><label for="2.19b">All custom typefaces (using font-display) are subsetted and offered as part of a font stack with a system font as a backup.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.19c"></td><td colspan="5"><label for="2.19c">All images provide meaningful alternative text for screen reader users (or when images fail to load) accessibility.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.19d"></td><td colspan="5"><label for="2.19d">Audio provides text transcripts of conversations as an alternative to playing the media.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.19e"></td><td colspan="5"><label for="2.19e">Video provides text transcripts (at minimum), subtitles (using WebVTT), and for accessibility best practice, offer closed captions and sign language options.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#provide-accessible-usable-minimal-web-forms">2.20</a></td>
<td colspan="5">Provide Accessible, Usable, Minimal Web Forms</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.20a"></td><td colspan="5"><label for="2.20a">Remove unnecessary forms and reduce form content to the bare minimum necessary to meet the visitor's needs and the organization's business goals. Clearly communicate why a form is necessary, what its value proposition is, how many steps it will take to complete, and what an organization will do with collected data (informed consent).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.20b"></td><td colspan="5"><label for="2.20b">Avoid auto-completion / auto-suggest if it would prove unhelpful (to conserve bandwidth) whilst allowing autofill for ease of repeat entry (including the use of helpful tooling such as password managers).</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#support-non-graphic-ways-to-interact-with-content">2.21</a></td>
<td colspan="5">Support Non-Graphic Ways To Interact With Content</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.21a"></td><td colspan="5"><label for="2.21a">Support speech browsing and other non-graphical ways to interact with content that provide alternatives to a visual interface.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#provide-useful-notifications-to-improve-the-visitor-s-journey">2.22</a></td>
<td colspan="5">Provide Useful Notifications To Improve The Visitor's Journey</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.22a"></td><td colspan="5"><label for="2.22a">Remove non-essential notifications while justifying and reducing the practice of e-mailing or text messaging to what is strictly necessary. Useful notifications (such as alerts for new content) should be used with care and restraint.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.22b"></td><td colspan="5"><label for="2.22b">Let the visitor control notifications (for example through the browser, <abbr title="Short Messaging Service">SMS</abbr>, or by email) and adjust messaging preferences, and the option to unsubscribe, logout, and close an account should be available and visible.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.22c"></td><td colspan="5"><label for="2.22c">Clearly explain the result of a potential input through helpful prompts and messages that explain errors, next steps, and so on. This will help manage their expectations.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#reduce-the-impact-of-downloadable-or-physical-documents">2.23</a></td>
<td colspan="5">Reduce the Impact of Downloadable or Physical Documents</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.23a"></td><td colspan="5"><label for="2.23a">If the production of paper documents is essential, it should be designed to limit its impact to the lowest possible. Create a <abbr title="Cascading StyleSheets">CSS</abbr> Print stylesheet and test it with different types of content. Ensure <abbr title="Portable Document Format">PDF</abbr> printing is encouraged over paper-based storage.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.23b"></td><td colspan="5"><label for="2.23b">Provide all downloadable documents in a state of being optimized, compressed, and in a variety of accessible file formats.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.23c"></td><td colspan="5"><label for="2.23c">If a document is likely to be re-used, generate the document once on the server-side (preferably on a cookie-free domain) rather than forcing the effort to be duplicated.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.23d"></td><td colspan="5"><label for="2.23d">Clearly display the document name, a summary, the file size, and the format, allowing the visitor a choice if possible of both the format, and the language (if not the same as the web page). Furthermore, be sure to avoid embedding the document within Web pages (provide a direct link to download or view within the browser instead).</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Low</td><td>Medium</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#create-a-stakeholder-focused-testing-prototyping-policy">2.24</a></td>
<td colspan="5">Create a Stakeholder-Focused Testing & Prototyping Policy</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.24a"></td><td colspan="5"><label for="2.24a">The organization has outlined processes it uses to prototype and test new features, product ideas, and user-interface components when applicable with real users who represent various stakeholder perspectives, including people with slow connection, with disabilities, with difficulties using digital services, and so on.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.24b"></td><td colspan="5"><label for="2.24b">The organization has appropriately resourced these processes to support its long-term product viability.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.24c"></td><td colspan="5"><label for="2.24c">The organization has training materials to onboard new product team members to these practices.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.24d"></td><td colspan="5"><label for="2.24d">The organization regularly conducts extensive testing and user interviews to validate whether the released features are meeting both business goals and visitor needs.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>High</td><td>High</td><td>High</td><td>High</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#conduct-regular-audits-regression-and-non-regression-tests">2.25</a></td>
<td colspan="5">Conduct Regular Audits, Regression, and Non-Regression Tests</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.25a"></td><td colspan="5"><label for="2.25a">The codebase has been checked for bugs, performance issues hav been identified, and accessibility or security problems have been accounted for at either monthly or quarterly timeframes (depending on your scheduling allowance).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.25b"></td><td colspan="5"><label for="2.25b">Non-regression tests are implemented for all important functionality.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.25c"></td><td colspan="5"><label for="2.25c">Regression testing has been incorporated into each release cycle to ensure that new features don't introduce bugs or otherwise conflict with existing software functionality.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#incorporate-performance-testing-into-each-major-release-cycle">2.26</a></td>
<td colspan="5">Incorporate Performance Testing Into Each Major Release-Cycle</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.26a"></td><td colspan="5"><label for="2.26a">The performance of a website or application, to identify and resolve bottlenecks or issues in the underlying code or infrastructure which could ultimately impact the sustainability of a website or application, are regularly measured with each release-cycle (using tooling or through research and auditing).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.26b"></td><td colspan="5"><label for="2.26b">Only data required to provide a streamlined and effective user-journey, put policies in place to ensure strict adherence, and comply with relevant accessibility policies and privacy laws, such as the General Data Protection Regulation (<abbr title="General Data Protection Regulation">GDPR</abbr>) are collected.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#incorporate-value-testing-into-each-major-release-cycle">2.27</a></td>
<td colspan="5">Incorporate Value Testing Into Each Major Release-Cycle</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.27a"></td><td colspan="5"><label for="2.27a">Visitor feedback, adoption, and churn rates are monitored of product or service features and their insights incorporated into future releases.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#incorporate-usability-testing-into-each-minor-release-cycle">2.28</a></td>
<td colspan="5">Incorporate Usability Testing Into Each Minor Release-Cycle</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.28a"></td><td colspan="5"><label for="2.28a">Usability testing has been incorporated into product cycles and the impact of these tests is routinely measured for future releases.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#incorporate-compatibility-testing-into-each-release-cycle">2.29</a></td>
<td colspan="5">Incorporate Compatibility Testing Into Each Release-Cycle</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="2.29a"></td><td colspan="5"><label for="2.29a">A compatibility policy with obsolete devices and software versions, listing the supported devices brands, operating systems, and browsers (including versions) has been established.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.29b"></td><td colspan="5"><label for="2.29b">Planned obsolescence in software updates is routinely avoided, striving to maintain compatibility for as long as possible and clearly communicating whether an update is evolutionary (large updates that can significantly reduce performance) or corrective (smaller updates that fix bugs or improve security).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.29c"></td><td colspan="5"><label for="2.29c">The product or service regularly tests with weak, unstable, and slow connections, old browsers, and devices older than five years to ensure compatibility.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.29d"></td><td colspan="5"><label for="2.29d">Device-adaptable methods (such as responsive design) are utilized and interfaces are prototyped to ensure progressive enhancement, content prioritization, and improved accessibility.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="2.29e"></td><td colspan="5"><label for="2.29e">A <abbr title="Progressive Web Application">PWA</abbr> has been either chosen or rejected based on whether it be more sustainable and compatible over a native mobile application.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>High</td><td>High</td><td>High</td><td>High</td>
</tr>
</tbody>
</table>
</section>
<section id="web-development"><div class="header-wrapper"><h2 id="x2-web-development"><bdi class="secno">2. </bdi>Web Development</h2><a class="self-link" href="#web-development" aria-label="Permalink for Section 2."></a></div>
<table>
<tbody>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#identify-relevant-technical-indicators">3.1</a></td>
<td colspan="5">Identify Relevant Technical Indicators</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="3.1a"></td><td colspan="5"><label for="3.1a">Explicit goals that impact the environment and performance of the service, for example, <abbr title="Hypertext Transfer Protocol">HTTP</abbr> requests, or the amount of <abbr title="General Data Protection Regulation">DOM</abbr> elements that need to be rendered are both set and met.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="3.1b"></td><td colspan="5"><label for="3.1b">Because the payload being delivered may not always be equal in terms of energy intensity, operators of websites and applications must ensure that consideration is given for the energy intensity (or unit being evaluated) of each component. For example, non-rendering text is less computational than <abbr title="Cascading StyleSheets">CSS</abbr>, which in turn is less process-heavy than JavaScript, which is less resource-heavy than WebGL.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#minify-your-html-css-and-javascript">3.2</a></td>
<td colspan="5">Minify Your <abbr title="Hypertext Markup Language">HTML</abbr>, <abbr title="Cascading StyleSheets">CSS</abbr>, and JavaScript</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="3.2a"></td><td colspan="5"><label for="3.2a">All source code is minified upon compilation (including inline code).</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Low</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Low</td><td>Low</td><td>Low</td><td>Low</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#use-code-splitting-within-projects">3.3</a></td>
<td colspan="5">Use Code-Splitting Within Projects</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="3.3a"></td><td colspan="5"><label for="3.3a">Breakdown bandwidth-heavy components into segments that can be loaded as required.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Low</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#apply-tree-shaking-to-code">3.4</a></td>
<td colspan="5">Apply Tree Shaking To Code</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="3.4a"></td><td colspan="5"><label for="3.4a">Identify and eliminate unused and dead code within <abbr title="Cascading StyleSheets">CSS</abbr> and JavaScript.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>Medium</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#ensure-your-solutions-are-accessible">3.5</a></td>
<td colspan="5">Ensure Your Solutions Are Accessible</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="3.5a"></td><td colspan="5"><label for="3.5a">Your website or application must conform to <abbr title="Web Content Accessibility Guidelines">WCAG</abbr> (at the necessary level), plus extend beyond to obey relevant laws and meet additional visitor accessibility requirements. Building inclusively means that people with permanent, temporary, or situational disabilities will be able to more quickly find what they are looking for, and not have to spend extra time searching for a way to use your product or service.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="3.5b"></td><td colspan="5"><label for="3.5b">Enhance your website or application with Accessible Rich Internet Applications (<abbr title="Accessible Rich Internet Applications">GDPR</abbr>) ONLY if applicable or necessary, and accessibility enhancing features when useful or beneficial.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="3.5c"></td><td colspan="5"><label for="3.5c">Deploy solutions that fight against electronic inequalities in products and services.</label></td>
</tr>
<tr>
<td></td><td><strong>Impact & Effort</strong></td>
<td>High</td><td>Medium</td><td></td><td></td>
</tr>
<tr>
<td></td><td><strong><abbr title="Global Reporting Initiative">GRI</abbr></strong></td>
<td>Medium</td><td>Medium</td><td>Medium</td><td>Medium</td>
</tr>
<tr class="highlight">
<td><a href="https://w3c.github.io/sustyweb/#avoid-code-duplication">3.6</a></td>
<td colspan="5">Avoid Code Duplication</td>
</tr>
<tr>
<td></td><td colspan="5"><strong>Success Criterion</strong></td>
</tr>
<tr>
<td><input type="checkbox" id="3.6a"></td><td colspan="5"><label for="3.6a">Remove or simplify (through rewriting for performance) your code to focus on essential features and have a cleaner, less redundant product (and codebase).</label></td>
</tr>
<tr>
<td><input type="checkbox" id="3.6b"></td><td colspan="5"><label for="3.6b">Improve (iterate) an existing creation rather than constantly redeveloping and redesigning products from scratch (duplication of coding effort) if possible to reduce visitor learning burden and developer impact.</label></td>
</tr>
<tr>
<td><input type="checkbox" id="3.6c"></td><td colspan="5"><label for="3.6c">Within <abbr title="Cascading StyleSheets">CSS</abbr> and JavaScript, use methodologies (like <abbr title="Block, Element, Modifier">BEM</abbr>) and systems like <abbr title="Don't Repeat Yourself">DRY</abbr> and <abbr title="Write Everything Twice">WET</abbr> to optimize the arrangement and output of your source code.</label></td>
</tr>
<tr>