Is your website
up and running?
Get a clearer picture of your website’s availability. Check its current response, connection and redirects in one place.
Enter your website address.
Checking the public website and its response. This can take a few seconds…
20 checks per connection within 15 minutes. A countdown appears if you reach the limit.
Connection details
Request journey
The responses received along the way.
A single check from our server at the time shown. Response time is measured to the response headers, including DNS and redirects. It is not a full page-load speed or historical uptime percentage.
Know what responded
See the actual HTTP status and a plain-language explanation of what it means.
Follow the connection
Check public DNS addresses, HTTPS and redirects without downloading the page.
Find your next step
Use the result to investigate your hosting, domain settings or SSL certificate.
A little clarity.
A better next step.
Website troubleshooting starts with knowing exactly what happened.
Talk to our support teamWhat does this uptime checker do?
It makes a live HTTP or HTTPS request to a public website and checks the response headers. It shows the HTTP status, response time, public DNS addresses and supported redirects. It does not run continuously or calculate an uptime history.
Does a failed check mean my website is down for everyone?
No. This is one observation from our checking server. A firewall, network route, DNS issue or security challenge can affect the result. Compare it with your browser and your hosting provider’s service status before concluding that there is a wider outage.
What do 403, 404, 429 and 500 mean?
403 usually means access was refused; 404 means that page was not found; 429 means the server is limiting requests; and a 500-series response indicates a server error. All of these are HTTP responses, so the result explains the specific problem instead of calling every error “offline.”
Is response time the same as page-load speed?
No. It measures the time to receive response headers, including public DNS checks and redirects. It does not measure images, scripts, browser rendering or the time a visitor needs to load the complete page.
Can I check HTTP websites and individual pages?
Yes. Enter an explicit http:// URL for an HTTP website, or paste the full page address you want to check. Bare domain names use HTTPS. Login credentials, custom ports, direct IP addresses and private networks are not supported.
Why is there a security check and request limit?
Google reCAPTCHA and a limit of 20 checks per connection in a sliding 15-minute window help keep the tool available. Each attempt clears 15 minutes after it was made. The form shows the remaining wait automatically when the local limit is reached.