Check If a Domain Is Reachable

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How to Diagnose Downtime in Minutes

Use this quick process when a web site fails to load. Our website down checker combines website monitoring data so you can identify website downtime and confirm whether an issue is local or widespread.

1

Confirm the issue on your side

Try a hard refresh, a private window, and a second browser. If possible, test on mobile data too. If one device works and another fails, the issue is usually local.

2

Compare remote check results

Run a domain check and review website status, site status, response time, and recent reports. If checks return "Up" with healthy response time trends, focus on your network, DNS, or browser setup.

3

Check availability by country

Some outages are regional. CDN edge failures, routing problems, or a local network issue can affect one country while others continue to work normally.

4

Interpret HTTP status codes

HTTP status codes help explain what happened on the web server. A 403 often means blocked access, 404 means the page is missing, and 502 or 503 usually indicates upstream server trouble.

5

Review common root causes

Frequent causes include stale DNS cache, unstable VPN or proxy routing, strict local firewall rules, ISP-level filtering, or overloaded origin infrastructure and other technical issues.

6

Take the right next action

If the checker says "Up" but you still cannot connect, clear DNS and browser cache, switch DNS to 1.1.1.1 or 8.8.8.8, and retry without VPN. If checks also fail, wait for service recovery and monitor new reports.

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Common Questions About Site Downtime

How can I check website status for everyone or just me?

Use our free website status checker to run a real time status check. Enter the domain or enter the URL, and we test that website URL from multiple locations. This helps you compare website status and site status across regions. If it loads for us but fails for you, the issue is usually local. If checks fail everywhere, the outage is broader. When a fresh check completes, we may show a small temporary desktop preview, but we do not store screenshots.

A domain won't open. What should I try first?

Start simple. Refresh the page, try a different browser, or open it on your phone. If none of that works, clear your browser cache and DNS cache. You can also switch DNS to Google (8.8.8.8) or Cloudflare (1.1.1.1). If you're on a VPN, turn it off and test again. If checks show the domain is up, you're likely dealing with a local network issue or other technical issues.

Do you store website screenshots for website monitoring?

No. A fresh check can return a small temporary desktop preview in your browser so you can see what loaded, but that image is not saved to history or stored as a screenshot file.

Can a website work in one country but be down in another?

Absolutely. A web site can be available in one region and unavailable in another because of routing problems, CDN edge failures, or regional restrictions. Our website monitoring checks from multiple locations help confirm whether the outage is regional or global.

Why does a website load slowly but not go fully offline?

A slow site is not always broken. It can be overloaded with traffic, running on underpowered infrastructure, or waiting on a busy database. Sometimes the bottleneck is local. Reviewing response time trends helps you separate temporary slowness from a real outage.

What do HTTP status codes like 502 or 503 mean?

HTTP status codes explain what happened between the browser and the web server. A 502 (Bad Gateway) usually means one server received a bad upstream response. A 503 (Service Unavailable) means temporary overload or maintenance. A 500 is a generic server error, and a 403 means access is blocked.

Why can I access a site on my phone but not on my computer?

This usually means the issue is specific to your computer, not the site itself. Your browser cache may be corrupted, an extension may interfere, or your local DNS cache may be stale. Testing another network or incognito mode can quickly isolate the cause.

How often do major websites experience website downtime?

More often than most people expect. Even large services have incidents. Many aim for 99.9% uptime, which still allows some downtime each year. Major providers usually recover quickly because they have dedicated response teams.

Could my ISP be blocking a website?

It is possible. Some ISPs block certain sites due to regulations, legal orders, or internal policy. If our checker says the site is up but you still cannot reach it, your ISP may be involved. Try a VPN or a public DNS resolver and check website access again.

Learn More About Uptime Monitoring