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The AI company Perplexity is complaining their bots can't bypass Cloudflare's firewall
(www.searchenginejournal.com)
This is a most excellent place for technology news and articles.
I suspect a lot of it comes down to your ISP. Like the original commentor I also frequently can't pass CloudFlare turnstile when on Wifi, although refreshing the page a few times usually gets me through. Worst case on my phone's hotspot I can much more consistently pass. It's super annoying and combined with their recent DNS outage has totally ruined any respect I had for CloudFlare.
Interesting video on the subject: https://youtu.be/SasXJwyKkMI