Online Status Checker — Check if Website is Down | AT USE

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Online Status Checker

instant check

Instantly check if any website is online or down. Get real-time status, HTTP code, response time, and check history. Find out if it's down for everyone or just you.

Website URL

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Status Code

Response Time

Timestamp

Enter a website URL and check its status.

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About Online Status Checker

Use this tool to check if a website is down for everyone or just for you — enter any URL and get a real HTTP response from our server in seconds. When a website seems unreachable, the first question is always: "Is it down for everyone, or just for me?" An online status checker answers that from a neutral position — it performs an HTTP request from a different server than yours and reports what that server saw. If the site responds normally to the check server but not to you, the problem is somewhere between you and the site: your ISP, local DNS, VPN, or browser cache. If the check server also gets no response, the site is down from an external perspective.

The AT USE Online Status Checker sends an HTTP request from our server, records the HTTP status code and response time, and returns the result in seconds. Recent checks are stored anonymously and shown in the panel so you can see whether others have been checking the same site — a cluster of recent checks on a domain often means other users encountered the same outage and came here to verify it.

Reading the HTTP status code

The status code is the most informative part of the result. Each range means something specific:

200 OK — the server responded and delivered the page normally. The site is online.

301 / 302 (redirect) — the URL redirects to another address. The tool reports the final status after following the redirect. A redirect is counted as online.

403 Forbidden — the server is running and responding, but it blocked the request. Many sites use bot management services (Cloudflare, Imperva, AWS WAF) that return 403 to automated requests while serving real browsers normally. If you see 403, the site's infrastructure is up — the block is at the application layer, not the network layer. Try the URL in your browser.

404 Not Found — the server is running but the specific URL does not exist. The server itself is online; only that particular path is missing.

500 Internal Server Error — the server is running but the application crashed while handling the request. The hosting infrastructure is up; the web application is not.

503 Service Unavailable — the server is online but refusing connections. Typical causes: maintenance mode, an overloaded application server that can't take more connections, or a misconfigured load balancer. Often temporary.

Connection timeout / no response — no TCP connection could be established within the timeout period. Either the server is unreachable (host down, IP blocked, routing issue) or the request timed out before a response arrived.

Why "just me vs. everyone" matters

If this checker shows a site as online but the site is unreachable from your browser, the problem is local to your connection. Common causes: your ISP's DNS cache hasn't expired a recently-changed record; a VPN is routing traffic incorrectly; your browser has a cached bad response (try opening a private/incognito window); or your office firewall blocks the domain. Clearing your DNS cache (ipconfig /flushdns on Windows, sudo dscacheutil -flushcache on macOS) often resolves DNS-related "just me" problems.

If this checker also shows the site as offline, the issue is external — either the server itself is down, or there is a routing problem between our server and the destination that reflects a broader outage.

What this tool does not do

A single point-in-time check from one server in one geographic location has real limitations. It cannot detect partial outages affecting only some regions — a site might respond fine from our server in Israel but time out for users in the US. It cannot detect performance degradation (slow but responding) versus complete outages. It does not test SSL certificate validity or page content. For SLA-critical services, use a dedicated uptime monitor that runs automated checks from multiple global locations on a schedule and sends alerts when thresholds are crossed. UptimeRobot, Pingdom, Better Uptime, and StatusCake all offer free tiers. This checker is the right tool for incident triage and manual spot-checks — not a replacement for scheduled monitoring.

What "website down" actually means<br>When a website won't load, the failure can be one of several things: the web server stopped running; the server is running but the application crashed; the server is up but a database or dependency failed so pages cannot be served; DNS is...