Cloudflare is blocking Lemwatch checks

Fix Cloudflare "Challenge", "Managed Challenge", or 1020 errors that make Lemwatch see your site as down.

Fixing 5xx errors caused by your firewall

Diagnose 502, 503, and 520 responses that only appear in Lemwatch — usually WAF rate limits or origin timeouts.

Why did my SSL grade drop?

SSL grade drops when a cipher, protocol, or certificate chain changes — here is how to identify the exact cause and fix it.