About Is It Up or Down?

IsItUpDown.com is a free website status checker built to answer a simple question: is a site down for everyone, or is the problem local to you.

Why we made it

This tool was created by volunteers in Lithuania. We originally built it to monitor our existing projects and quickly see when a site stopped responding. After using it ourselves, we decided to make it public so others could use the same checks.

What the tool does

You enter a domain name, and our system tries to reach it from our servers. We show whether the site responded, the HTTP status code, and the response time in milliseconds. If our servers can reach the site but you cannot, the issue may be related to your connection, DNS, firewall, ISP, or local network.

Country checks

Some websites are available in one region and unavailable in another. This can happen because of routing problems, content delivery issues, local filtering, or site level access rules. Our country checks send requests through servers in different locations so you can compare results across regions.

User reports

Visitors can also report whether a site is working from their location. These reports help show whether a problem looks isolated or more widespread. They are meant as a useful signal alongside the automated checks.

Other tools

We also provide an IP address lookup that shows your public IP, ISP, and approximate location. The VPN test helps you check whether your traffic appears to be using a VPN or proxy. The user agent checker shows what your browser reports to websites.

How checks work

Each check makes a normal HTTP request that includes DNS lookup, connection setup, HTTPS negotiation when needed, and reading the server response. We record the status code and measure the total time. For country checks, the request is sent through a proxy in the selected country. Results may also be stored for a period so we can show recent history.

Contact

If you have questions, feedback, or want to report an issue, use the contact form.