Free tools
Ray ID lookup
Got a Cloudflare error or block page? Paste its Ray ID to open that request in your Cloudflare dashboard and see which rule stopped it, and where.
Private by design. Nothing you type here is recorded or sent to me, and I’ll never contact you about a domain you check. The links are built in your browser and open your own Cloudflare dashboard, so I never see your account. Log in to Cloudflare first. I only count how often each tool is used. Free, with no sign-up.
Ray ID lookup
Find a blocked request
What it means
Seeing a Cloudflare error?
- 520: your server sent an empty or unexpected reply. Check the web server and PHP error logs; it’s often a crash or oversized headers.
- 521: your server refused the connection. The web server is down, or a firewall is blocking Cloudflare. Allow Cloudflare’s IP addresses.
- 522: the connection timed out. The server is overloaded, or a firewall is silently dropping Cloudflare.
- 523: Cloudflare can’t reach your server at all. The DNS record usually points at an old or wrong address.
- 524: your server took more than 100 seconds to answer. Common with slow reports, imports and backups.
- 525: the secure (SSL) connection between Cloudflare and your server failed. Check the server’s SSL setup.
- 526: your server’s certificate isn’t valid, and the encryption mode is Full (strict). It’s expired, self-signed or for another name. A free Cloudflare Origin CA certificate fixes it.
- 1020, “Sorry, you have been blocked”, or a 403 with a Ray ID: a firewall rule blocked the request. Look up the Ray ID above to see which one.
- 1015 or 429: rate limited. Too many requests from one address in a short time.
Still stuck? Send me the Ray ID and the error, and I’ll take a look.
Found something you’d rather not fix yourself? Tell me what you found, and I’ll sort it out.
Under attack right now? Call +61 2 8363 3348.