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🚦 Is My Website Down?

Is my website down, or is it down for everyone or just me? Paste any URL — this free website down checker instantly gives you a clear UP or DOWN verdict, plus HTTP status, response time, DNS resolution, TLS certificate, and redirect chain.

Try: google.com github.com cloudflare.com stripe.com nosuchdomain12345.xyz (down demo)
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About this "Is my website down?" checker

This tool answers the exact question every developer, ops person, and site owner types into a search bar hundreds of times a year: is my website down, or is it down for everyone or just me? Paste any URL — we fetch it live from our server and return the answer in under two seconds, plus every technical detail you need to know why.

It's a website down checker, a site down checker, an "is it down for everyone or just me" tester, and an uptime status checker — all in one. Works for any URL: your personal site, a client's production server, a Fortune 500 homepage, a staging environment, an internal tool. If the URL is publicly reachable, we can check it.

What we actually check

When you hit Check now, our server runs five real technical probes in parallel:

  1. DNS resolution — does the domain resolve to an IP? If not, the site doesn't just look down — it doesn't exist as far as the internet is concerned. Hard failure.
  2. TCP reachability — can we open a socket to port 443 (or 80 if you use http://)? If DNS works but TCP is refused, the server is offline or firewall-blocked.
  3. HTTP status code — we do a real GET and read the response. 2xx / 3xx = up. 5xx = server error. 4xx = up but wrong URL (or bot-blocked).
  4. Response time — full round-trip in milliseconds. Under 800 ms is snappy; over 3 seconds and we flag it as slow.
  5. TLS certificate — for https:// URLs, we check the certificate: issuer, expiration date, chain validity, hostname match. A site is "up" but "SSL broken" if the cert is expired.

We also trace the redirect chain — so if http://yoursite.com silently sends visitors to https://www.yoursite.com/en/home, you'll see every hop.

"Is it down for everyone or just me?"

This is the crucial question. Our checker runs from a data center — so our vantage point isn't affected by your ISP, your local Wi-Fi, or your browser cache. That means:

  • We say UP and you can't reach it → the problem is on your end. Try a mobile hotspot, or switch DNS to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google). Clear your browser's DNS cache. Check your firewall or corporate proxy.
  • We say DOWN and you can't reach it → the site is genuinely down for everyone. If it's your site, check your hosting provider. If it's someone else's, wait or use a cached copy from the Wayback Machine.
  • We say UP but you get a specific error → the site works, but your specific URL or region is affected. Common with geo-restricted content, A/B tests, or corporate WAF rules.

Verdict meanings in detail

✅ UP — DNS resolves, TCP connects, HTTP status is 200-399, response time is reasonable, and (for https URLs) the TLS certificate is valid. The site is fully functional right now.

⚠️ SLOW — All the "up" conditions apply, but response time is over 3 seconds. The site works but feels sluggish; visitors will notice.

⚠️ SSL PROBLEM — Site responds successfully but its TLS certificate is expired, mismatched, or otherwise broken. Browsers will show a security warning, which drives most users away. Renew the cert to fix.

⚠️ BLOCKED — Site returned HTTP 403 (Forbidden) or 429 (Too Many Requests) — usually anti-bot rules blocking our automated request. It's very likely up for real browsers, but we can't confirm from an automated check.

🚫 DOWN — Any hard failure: DNS doesn't resolve, TCP refused, HTTP timeout, or HTTP 5xx server error. The site is down right now.

If the checker says your site is down

  1. Check your hosting provider status page — most have one at status.provider.com.
  2. Log into your control panel and check if the server is running.
  3. Look at server load / disk space — the two most common causes of sudden 5xx errors.
  4. Check your DNS records for accidental changes.
  5. Check your SSL certificate for expiration.
  6. Check domain registration expiry — an expired domain looks identical to a down server.

"Is my website down" vs Down Detector vs isitup.org

This tool — runs a live technical check of any URL you give it, right now. Best for: your own site, staging environments, private URLs, or any specific address you want to test yourself.

Down Detector — aggregates outage reports from millions of users. Best for: the big consumer services (Instagram, Gmail, PlayStation Network). Won't have data on your personal site.

isitdownrightnow.com / downforeveryoneorjustme.com — similar to us; they run a live HTTP check. We add DNS/TCP/TLS/redirect diagnostics on top of the basic HTTP status, plus cross-links to our own DNS, WHOIS, and SSL tools when you need to dig deeper.

Privacy & rate limits

Rate-limited to 30 checks per minute per IP. The URL you check is fetched live and the result is returned to your browser — nothing about the URL is stored on our server. Only a hashed IP is stored briefly for rate limiting.

Frequently asked questions

This checker fetches your URL from our server. If we get a healthy response and you don't, the problem is on your end — your ISP, DNS resolver, browser cache, or local firewall. If we also see a failure, the site is down for everyone.
This site down checker runs the five checks that matter: DNS resolution, TCP port reachability, HTTP status code, response time, and SSL certificate validity. Plus the redirect chain so you can see where the request ends up.
It usually means "down for me, not down for everyone." Common causes: your ISP has stale DNS cache, your browser has a bad cached record, your firewall or corporate proxy is blocking the domain, or your local network has a routing issue. Try a mobile hotspot or a public DNS like 1.1.1.1 to confirm.
Down Detector shows user-reported outages from a large crowd — best for popular services. This tool does an actual live technical check of any URL you paste, including your own site. It works for personal websites, staging environments, and internal tools that aren't on Down Detector.
Yes. Paste your domain, we'll tell you exactly what our server sees — response code, response time, TLS status. If we see UP and you don't, the problem is between your browser and the server.
No. The URL is checked live and the result is returned to your browser. Nothing is written to disk beyond a rate-limit counter (hashed IP, not the URL).