Guides
Cloudflare
Guides
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How to fix ERR_SSL_PROTOCOL_ERROR
The browser and server could not agree on a secure connection at all. Usually HTTPS is not set up on that port, or the…
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How to fix ERR_TOO_MANY_REDIRECTS
Two rules are sending visitors back and forth forever. Usually HTTP and HTTPS, or www and non-www, set differently in two places.
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How to fix “Your connection is not private”
The browser does not trust the site’s certificate. What each NET::ERR_CERT code means, and how to fix it on either side.
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How to fix 429 Too Many Requests
A rate limit was hit. Slow down if you are the visitor; if you run the site, decide whether the limit is protecting you…
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How to fix 403 Forbidden
The server found the page but will not show it. Usually file permissions, a missing index file, or a security rule. Here is how…
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How to fix 504 Gateway Timeout
The backend is alive but too slow. Find the slow request, raise the right timeout only if the work is genuinely long, and fix…
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How to fix 502 Bad Gateway
A 502 means the web server asked the program behind it for a page and got no usable answer. Find which part failed in…