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Is your website down?

Run a live edge check on any URL. You’ll get the HTTP status code, response time, redirect chain, and a clear verdict in under 10 seconds.

Live UptimePad monitoring probe · anonymous · no rate-limit hassle

What this tool actually tells you

A one-shot website down checker answers a single question: "did this URL respond just now from one location?" That’s useful for confirming a hunch, not for catching outages. To know your site is reliable, you need continuous checks from multiple regions, with alerts when at least 2 regions agree. UptimePad runs both the one-shot tool above (free, anonymous) and the continuous version (free for 50 monitors).

QuestionOne-shot checkContinuous monitoring
Is the site responding right now?YesYes
Was it down at 3am last night?NoYes (with timestamp)
Is it slow only from EU?NoYes - multi-region p95
Did the SSL cert expire?NoYes - alerts at 30/14/7/1 day
Did DNS records change?NoYes - record-level diff
Was it a regional outage?NoYes, per-region incident view

When the tool says “it’s up” but visitors say it’s down

The check ran from one UptimePad probe region. If your visitors are in a different geography - say, an Australian audience while the probe ran from EU - the test missed a regional outage. Other false-up patterns: a CDN cache that’s still serving stale HTML, a JavaScript-only site that 200s for the bot but blanks for users, or a per-user feature flag that’s broken only for logged-in accounts. Continuous monitoring from multiple regions, plus a per-region p95 latency view, surfaces all three.

When the tool says “it’s down” but it’s working in your browser

Three common reasons: (1) the site geo-blocks the region the probe ran from; (2) the site requires a cookie or session you have but the bot doesn’t; (3) it was a transient flap that recovered after the 10-second timeout. The tool doesn’t retry. UptimePad’s continuous monitoring waits for two regions to agree before firing an alert, which kills false-positive flap.

What to do next when the verdict is “it’s down”

  1. Check the same URL from an incognito window in your browser - confirms it isn’t a cookie issue.
  2. Check from your phone on cellular data - confirms it isn’t a network issue on your end.
  3. If you’re on Cloudflare, log into the dashboard and check the Analytics tab for 5xx rates and origin error counts.
  4. If you have continuous monitoring, look at the incident page. Regional failures, DNS changes, and SSL warnings usually point at the cause.
  5. If you don’t have continuous monitoring yet, set it up before the next outage. The free plan covers 50 URLs.

FAQ

Is this website down checker free?+

Yes. Anyone can run a live one-shot check on any public URL. There is no signup, no rate-limit hassle for normal use, and no email required. UptimePad is the company behind it; the tool runs the same probe code we use for paying customers.

How does it work?+

When you submit a URL, the request goes to an UptimePad monitoring probe. That probe resolves DNS, makes a single HTTP GET to the URL with a 10-second timeout, follows up to a few redirects, and reports the HTTP status code, total response time, and a verdict. The tool does not store your URL.

What does each verdict mean?+

"It’s up" means the site returned a 2xx or 3xx response inside 3 seconds. "Up but slow" means it responded but took longer than 3 seconds. "Returning an error" means a 4xx response (the request was rejected). "It’s down" or "5xx" means the server returned a 5xx (the server itself is broken). "Timed out" means no response in 10 seconds - effectively down. "Can’t reach it" means the DNS lookup failed.

Why does my site look down here but up in my browser?+

Three usual reasons: (1) the site is geo-blocking the region the probe runs from; (2) you have a cookie or session that loads the page in your browser but not for an anonymous probe; (3) intermittent flap, where the site is up most of the time but failed right when we checked. Paid plans add multiple regions so you can tell flap from sustained outage.

Why does my site look up here but my visitors say it’s down?+

Probably either (a) a regional outage that doesn’t affect the edge region this tool ran from - e.g., your site is reachable from US East but down from EU; or (b) a browser-only issue (cookies, cache, mixed content) that an anonymous probe doesn’t hit. Continuous monitoring from multiple regions is what surfaces both patterns.

Can I monitor this URL continuously instead of one-shot?+

Yes. UptimePad’s free plan covers 50 monitors at 5-minute intervals with email alerts. The signup link on the result card pre-fills the URL you just checked.

Does the tool check SSL certificates or DNS?+

Today the one-shot tool only does an HTTP GET. SSL expiry and DNS-record monitoring are continuous-monitoring features in the paid product. If you want to add SSL or DNS checks for a URL, sign up for the free plan - SSL and DNS monitoring are included on free, not paywalled.

What user-agent does the probe send?+

User-agent: "UptimePad-Probe/0.1 (+https://uptimepad.com/tools/website-down-checker)". If you maintain the site you’re checking, you can whitelist this user-agent in your bot rules so the probe doesn’t look like adversarial traffic.

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