Uptime Checker
Is it down? Check any website in seconds — HTTP status, response time, redirect chain.
Free, instant website checker
Just enter a website URL and check if it's up, slow, or unreachable right now. No account needed — get a clear answer and a shareable link in an instant.
Works with or without https:// · e.g. google.com or https://google.com
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Latest observed results — not a guarantee of current availability.
Uptime Checker
Is it down? Check any website in seconds — HTTP status, response time, redirect chain.
World Intelligence Map
Live global map: earthquakes, weather alerts, satellites, flights — all in one view.
DNS Lookup
A, MX, TXT, NS records from Google & Cloudflare resolvers side-by-side. Spot propagation issues.
SSL Certificate Checker
Issuer, validity, days remaining from Certificate Transparency logs. Renew before expiry.
Redirect Chain Checker
Every 301/302/307/308 hop exposed. Flatten chains that leak SEO value.
API Endpoint Checker
Test any endpoint — status, latency, redirects, content-type. Debug 401/429/5xx fast.
WHOIS Lookup
Registrar, creation/expiry dates, status codes, nameservers, DNSSEC. Unregistered? Register link.
Uptime Monitoring
Free 5-min checks (1-min Pro). Email alerts on failure & recovery. No daily digest spam.
Latest known status of popular sites — rechecked whenever anyone runs them above.
Up right now (9)
Down / having issues (3)
Live server-side probes
Every check is a real HTTP request from our edge — never simulated, never cached guesses.
Honest 403s and bot blocks
Challenged probes are labeled Issues, not down. A 404 means the page is gone — the site is up.
No account, no install
Type, check, done. History persists for everyone automatically.
HTTP status codes
What 200, 404 and 500 really prove.
DNS errors
NXDOMAIN fixes in minutes.
Down checklist
You or everyone? 11 steps.
This free tool pays for itself — see how we earn →
Yes. Manual checks are free with no account. Ad impressions keep it free.
No. A 404 means the server is reachable but that page is missing. The site itself is online.
Online: reachable and fast. Issues: reachable but erroring (5xx, 429, TLS) or very slow. Unreachable: DNS failure, timeout or connection refused.