Help Center
Practical, plain-English guides for when websites won't load: DNS fixes, HTTP error codes, speed problems and outage diagnostics — written by the team behind the website down checker.
Technical Explainers
View all 5 →Is a Website Down for Everyone or Just Me? How to Tell in 60 Seconds
A fast, reliable way to know whether a site is truly down for everyone or the problem is only on your device or network — plus the exact fixes for each case.
Read guide →Cloudflare Errors Explained: 521, 522, 523, 524 & How to Fix Them
See a Cloudflare error screen? Learn what 521, 522, 523 and 524 mean, who is at fault, and what you can do about it.
Read guide →Why Is a Website Loading Slow? 7 Causes & How to Fix Them
From TTFB to DNS to your own Wi-Fi: diagnose exactly why a site is slow and what you can actually do about it.
Read guide →HTTP Status Codes Explained: 403, 404, 500, 502, 503 & More
What do HTTP error codes really mean, which ones mean a site is truly down, and which are just blocking you? Plain-English guide.
Read guide →How to Tell if a Website Is Down for Everyone (5 Reliable Methods)
Five fast ways to confirm a real outage: down checkers, cross-device testing, outage boards, DNS and SSL diagnostics.
Read guide →Fixes & Troubleshooting
View all 6 →How to Fix 502 Bad Gateway (Visitor & Site Owner Guide)
What 502 Bad Gateway really means, why it happens, and step-by-step fixes for visitors and website owners alike.
Read guide →How to Fix "Your Connection Is Not Private" & SSL Certificate Errors
NET::ERR_CERT_DATE_INVALID and similar SSL warnings explained — when it is your fault, when it is the site's fault, and how to fix both.
Read guide →How to Fix DNS_PROBE_FINISHED_NXDOMAIN & "Server IP Address Not Found"
Chrome's most confusing error, decoded. Fix DNS_PROBE_FINISHED_NXDOMAIN on Windows, Mac and Android in minutes.
Read guide →How to Flush Your DNS Cache (Windows, macOS, Android & iPhone)
Step-by-step guide to clearing your DNS cache on Windows 10/11, macOS, Android and iPhone to fix websites that won't load.
Read guide →Website Down for You but Not for Everyone? 9 Fixes That Work
If a site works for others but not for you, the problem is local. Try these 9 proven fixes: network, VPN, DNS, cache and more.
Read guide →Internet Works but One Website Won't Load? Here's Why & How to Fix
Everything else loads fine but one site refuses? Diagnose DNS, SSL, regional blocks and browser issues with these steps.
Read guide →Is a website down right now?
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