Technical Explainers
5 guides in this category.
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 →Need a live answer?
Check whether any website is down right now — free and instant.
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