Ask HN: Why isn't Google indexing information about the AT Protocol?

A Hacker News user reports that Google Search appears to poorly index AT Protocol-related information compared to other search engines like DuckDuckGo, noting that a search for "list of public atproto relays" returns only 3 results on Google, none of which actually contain such a list, while DuckDuckGo returns multiple relevant sites. Commenters debate whether this reflects Google's general search quality decline, personalization issues, or robots.txt configuration problems with the indexed sites.