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Reddit blocking all major search engines, except Google
(readwrite.com)
This is a most excellent place for technology news and articles.
No, but SearX does similar things. I've been learning about Kagi recently, and as far as I can tell, they don't index pages on their own, they just use APIs provided by the real search engines.
They do both. Which is how they're able to provide some of the more unique filters and lenses. They maintain their own indexes.
This is reasonably documented: https://help.kagi.com/kagi/search-details/search-sources.html