Every check returns a code. Learn which ones mean the site is healthy, which mean a bot wall (not an outage), and which mean the server is actually struggling.
The classic question. A step-by-step method using an independent checker, a second network, and DNS checks to pinpoint whose side the failure is on.
How uptime is measured, how much downtime each “nine” allows per year, and why a 100% self-check log can still hide real outages.
Diagnose regional blocks, ISP filtering, and geo-restrictions — and combine a VPN with a server-side check to pinpoint the cause.