diff --git a/pipelines/tocrawl/tocrawl.go b/pipelines/tocrawl/tocrawl.go
index b82c89e..adc8263 100644
--- a/pipelines/tocrawl/tocrawl.go
+++ b/pipelines/tocrawl/tocrawl.go
@@ -98,6 +98,10 @@ func generateCrawlEntries(db *gcse.MemDB, hostFromID func(id string) string, out
 		}
 		host := hostFromID(id)
 
+		if host != "github.com" {
+			return nil
+		}
+
 		// check host black list
 		if configs.NonCrawlHosts.Contain(host) {
 			return nil