1. Check your internet & VPN
Open another site. Restart your router, switch between Wi-Fi and mobile data, and temporarily disable any VPN or proxy.
Is it down right now?
Enter a website address to check if it is online.
Try:
- Response time
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- HTTP response
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- Last checked
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Recently checked
No checks yet. Your history stays private in this browser.
What is UpOrDown?
UpOrDown is a free online website status checker that tells you in seconds whether a website is up or down. It runs 100% in your browser, needs no sign-up, and shows response time in milliseconds.
- Instant website up/down check
- Response time (ping) in milliseconds
- Quick presets for popular websites
- Recent check history saved locally
- Auto re-check timer for ongoing outages
- Private: no backend, no tracking
Website down for you? Quick troubleshooting tips
If UpOrDown reports a site as offline, try these steps before assuming it is down for everyone.
2. Clear browser cache
Stale cached files or cookies can break a page. Clear cached data for the site, then hard-refresh with Ctrl+Shift+R (Cmd+Shift+R on Mac).
3. Flush your DNS
Windows: run ipconfig /flushdns. macOS: sudo dscacheutil -flushcache. Linux: resolvectl flush-caches.
4. Try Incognito / another browser
A private window disables most extensions. If the site loads there, an extension or profile setting is the culprit.
5. Switch DNS or network
Try a public DNS such as 1.1.1.1 or 8.8.8.8, or test from a different network or device.
6. Wait and re-check
Most outages are fixed within minutes. Turn on auto re-check above and we'll keep testing for you.
How this website status checker works
UpOrDown sends a lightweight request from your browser to the website you enter and measures how long it takes to answer. If a response arrives before the timeout, the site is reported as online. If the request fails or times out, it is reported as offline or unreachable.
Privacy & zero server overhead
Everything runs 100% in your browser. There is no backend, no account, and no tracking. Your recent checks are stored only in your own local storage and can be cleared at any time.
About the HTTP indicator
For security reasons, browsers hide the exact HTTP status code of cross-site requests. UpOrDown therefore shows whether a response was received, which is enough to tell if the server is alive.
Frequently asked questions
How to check if a website is down for everyone?
Enter the address above and press Check Status. If it responds, the site is online. If it times out, it is likely down. To confirm it is not just your connection, test a few popular sites, try another network or device, and turn off your VPN.
Why is a website down?
Typical causes are server crashes or overload, scheduled maintenance, expired domains or SSL certificates, DNS failures, hosting or CDN outages, DDoS attacks, and bad deployments.
What does HTTP status mean?
It is a three-digit code a server sends back with each response. 2xx means success, 3xx is a redirect, 4xx is a client error (like 404 Not Found), and 5xx is a server error (like 500 or 503).
Is UpOrDown free and private?
Yes. It is completely free and runs only in your browser. Nothing is sent to our servers because there are none.
How accurate is a browser-based website status check?
The test runs from your own device and network, so it shows whether the site is reachable for you. If a site shows as down, confirm from another network or device to rule out local problems.