error 502, 503, 520 524, 526

Hi @happyguy99,

This seems to be Cloudflare related connection issues.

Have you checked their documentation?

• Error 520: Web server is returning an unknown error
• Error 524: A timeout occurred
• Error 526: Invalid SSL certificate

Also, check the Wordfence Firewall Rate limiting rules.

• This reply was modified 6 years, 6 months ago by yndmgo. Reason: Additional check

Hi @happyguy99

Normally, these requests should be ajax requests and not crawled by Google, you could follow this method to prevent Google from crawling these query strings.

However, these requests should return server response 200, not those ones you have reported, to debug this issue I recommend checking references mentioned by yndmgo.

Thanks.