A customer says your site is broken, but the page loads fine on your laptop. You need a clear answer before you reply, and guessing wastes an hour. A website down checker such as Kwebby's Server Status Checker sends a live request to the URL and shows what the server sends back. You get the HTTP status code, the response time and the server details in seconds, and you learn whether the fault sits with the server or somewhere else.
Key Takeaways
- Kwebby's Server Status Checker sends a live HTTP request to any URL or domain and reports the status code, the response time in milliseconds and the server software.
- A 200 means the server returned content normally. A 301 or 302 is a redirect, a 404 means the page is missing, and a 500 or 503 points to a server problem.
- The tool follows redirects and shows the status of the final destination, so you see what a visitor actually reaches.
- Google's documentation says 5xx and 429 responses make its crawlers slow down, so repeated server errors can hurt search visibility as well as sales.
- For planned maintenance, return a 503 with a Retry-After header so crawlers know the outage is temporary.
- The checker is free and needs no account.
What Is the Kwebby Server Status Checker?
The Kwebby Server Status Checker is a free web tool that tests whether a website or server is online. You enter a URL or domain, and the tool makes one live HTTP request from Kwebby's server, a single location. It sends a HEAD request, repeats the check with GET if the server rejects HEAD, and follows redirects. It reports the exact status code, the server response time in milliseconds and the server software named in the response headers. No account is needed.
People often search for this kind of tool as a "website down checker" or "is website down". The Server Status Checker covers both questions. It tells you whether a site responds, and it shows the code behind the answer so you know what to fix.
Key Features and How It Works
The tool runs one live request and turns the response into facts you can act on. Each feature below matches a line in the result.
Exact HTTP Status Code
The tool reports the real code the server returned, such as 200, 301, 404, 500 or 503. A code says more than a plain "up" or "down" label because it names the type of problem. A 404 means the server runs but the page is gone. A 500 means the server hit an unexpected error, usually a code or configuration fault. Under the code, the tool prints the name of the status and a plain-language explanation of what it means.
Response Time in Milliseconds
Response time shows how long the server took to answer. A page that returns 200 after several seconds is technically up, yet visitors will leave. Run the check a few times and compare the numbers to spot a slowdown early.
Server Details From the Headers
The tool names the server software it finds in the response headers. That detail helps when you manage several hosts and need to confirm which one answered. For the complete set of headers, open the Get HTTP Headers tool.
Redirect Following
The checker follows redirects and reports the status of the final destination. If http://example.com redirects to https://www.example.com, you see the end result instead of the first hop. To trace each hop one by one, use the WWW Redirect Checker.
Timeout Detection
When the server does not answer within 10 seconds, the tool reports no response within 10 seconds. A refused connection or a domain that does not resolve gets its own message. That result usually means the server is down, overloaded, or a firewall is blocking the request.
Why Checking Server Status Matters
Server errors cost you visitors right away, and they can cost you search visibility if they last. While a store, booking form or login page is down, nobody can buy, book or sign in.
Search engines notice too. Google's documentation on HTTP status codes and network errors says that 5xx and 429 responses make its crawlers slow down. URLs that keep returning server errors can eventually drop out of the index. A single bad hour rarely matters, but days of errors on key pages do.
A fast check also prevents false alarms. If the checker returns 200 and you still see an error, look at your own browser, DNS cache, VPN or network before you contact your host. That one step often saves a support ticket.
How to Use the Server Status Checker
Checking a site takes five steps.
- Enter the URL or domain. Type or paste the address into the input field. Use the exact page you care about, such as
https://example.com/checkout, instead of the homepage alone. - Click Check. The tool sends a live HTTP request to the address and waits for the response.
- Read the status code. Match the code to the list below to see whether the site is up, redirecting or failing.
- Compare the response time and server details. Note the milliseconds and the server software, and save them if you plan to compare later.
- Run the check again after a fix. After you restart a service, repair a redirect or finish a migration, check once more to confirm the code changed.
What Each Result Means
- 200 OK: the request succeeded and the server returned content normally.
- 301 or 302: a redirect. The URL has moved, and the tool shows the status of the final destination.
- 404 Not Found: the server is up, but the page does not exist. The URL is wrong or the page was deleted.
- 500 Internal Server Error: the server hit an unexpected error. Look at the application code and the server configuration.
- 503 Service Unavailable: the server cannot handle requests right now, usually because of maintenance, overload or a crash.
- 520 to 527 and 530 (Cloudflare): the site sits behind Cloudflare. Cloudflare answered, but the site's own (origin) server failed: 520 means an empty or invalid response, 521 means the web server is down, 522 and 524 are timeouts, 523 means the origin is unreachable, 525 and 526 are SSL problems, and 530 is an origin DNS error. The tool labels these as reachable through Cloudflare with a failing origin, so only the site owner or host can fix them.
- Connection timeout: the server did not answer in time. Suspect a server that is down or overloaded, or a firewall that blocks the request.
Best Practices for Checking Server Status
Good checks ask a narrow question and repeat it. These habits make the result easier to trust.
Test the Exact URL That Matters
A homepage can return 200 while the checkout, login or API path returns 500. Check the address your visitors or customers use, rather than the root domain alone. The common mistake is to test the homepage, see green, and miss a broken page that carries the revenue.
Compare Before and After Changes
Run a check before a migration, plugin update or server change, and again after. A page that changed from 200 to 301 or 500 tells you what the change did. Keep the two results side by side.
Confirm Before You Escalate
A single failed request can come from a brief network problem. Run the check twice, a minute apart, before you declare an outage or call your host. To test many sites in one pass, use Ping Multiple URLs.
Return a 503 With Retry-After During Planned Downtime
For planned maintenance, serve a 503 so crawlers treat the outage as temporary. The MDN reference for 503 says the Retry-After header should carry the estimated recovery time when possible. The common mistake is to serve a normal page or a 404 during maintenance, which tells crawlers the content is gone.
Do Not Mistake a 404 for an Outage
A 404 means the server answered and the page was missing. Your site is not down. Fix the URL, restore the page or add a redirect.
Common Use Cases
- A user reports an error. Check the URL to see whether the problem is reproducible from outside the user's device.
- After maintenance or a migration. Confirm that key pages return the right codes, such as 200 for live pages and 301 for moved ones.
- Before a client call. Verify that a client's site responds before you open a meeting about it.
- A site is up but slow. Read the response time, then run the Page Speed Checker for a deeper look at load performance.
- A domain stops resolving. Look up its records with Find DNS Records and check the A record and nameservers.
Related Kwebby Tools
The Server Status Checker is one of the networking utilities in our Developer Tools collection. These tools pair well with it:
- Get HTTP Headers shows every response header for a URL, which helps when the status code alone does not explain the fault.
- Ping Multiple URLs checks several sites at once, useful when you manage a portfolio of client sites.
- WWW Redirect Checker traces each redirect hop, so you can find chains and loops.
- SSL Checker shows certificate details, a common cause of browser warnings on sites that are otherwise up.
- Domain Hosting Checker identifies the host behind a domain, so you know who to contact.
Frequently Asked Questions (FAQs)
How do I check if a website is down for everyone or just me?
Enter the URL in the Server Status Checker and read the result. If it returns 200 and you still see an error, the problem is probably on your side, so try another browser, turn off your VPN, clear your DNS cache or switch networks. If the checker shows a 5xx code or a timeout, the server itself is failing.
Why is a website down for me but working for other people?
The cause is usually local. Common culprits are a cached DNS record, a VPN or proxy, a browser extension, a firewall rule or a problem with your internet provider. Test the same URL from another device or network to confirm.
What does a 503 Service Unavailable error mean?
A 503 means the server is temporarily unable to handle the request, usually because of maintenance or overload. It is meant for short-term conditions. Site owners should send a Retry-After header to signal when the server expects to be back.
How does website downtime affect SEO?
Repeated server errors make Googlebot slow its crawling, and URLs that keep failing can eventually be dropped from the index. Short outages are less of a risk than long ones. Fix the cause quickly and check the key pages again once the site recovers.
Is the Kwebby Server Status Checker free?
Yes. The tool is free and needs no account. Enter a URL and click Check.
Final Thoughts
A status code beats a guess. The Server Status Checker gives you the code, the response time and the server details for any URL in one request, so you can tell an outage from a local problem and a redirect from a failure. Run it on your most important pages today, note the baseline, and check again after every deployment or hosting change. If outages keep returning and the cause sits in your code or hosting setup, get a quote from our development team.