A look at search engines with their own indexes - Seirdy

https://seirdy.one/posts/2021/03/10/search-engines-with-own-indexes/

Monitoring certain web directories for changes in their search engine listings. Checking other curated lists of “good/bad bots” to spot search engines. Using search engines to dis
A cursory review of all the non-metasearch, indexing search engines I have been able to find.

That's everything I could find.
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