# Is Web Up or Down

> iswebupordown.com is a free tool that checks whether any website is currently
> up or down. Enter a domain and it performs a live HTTP check and reports the
> status (UP, an error code, or unreachable), the HTTP response code, and the
> response time — plus user-submitted outage reports, comments, and reviews for
> that site.

## How it works

- Check a site by visiting [a status page](https://iswebupordown.com/status/google.com) at `https://iswebupordown.com/status/<domain>`. It shows a live status, HTTP code, response time, recent outage reports by location, and comments.
- Status meaning: a 2xx/3xx response (or 405) is "UP"; a 4xx response means the server is reachable but that page returned an error ("Up — returns error N"); a 5xx or no response means the site is effectively down.

## Key pages

- [Home / check a site](https://iswebupordown.com/): enter a domain to run a live up/down check
- [Most checked websites](https://iswebupordown.com/mostcheacked): sites people look up most
- [Most discussed websites](https://iswebupordown.com/mostdiscussed): sites with the most reports and comments
- [Reviews](https://iswebupordown.com/reviews/google.com): user reviews for a site at `/reviews/<domain>`
- [About](https://iswebupordown.com/about): what the tool does and how status is determined
- [Request removal](https://iswebupordown.com/request-removal): ask to have a site removed

## Optional

- [Sitemap](https://iswebupordown.com/sitemap.xml): full list of indexed pages
- Status pages are live: the up/down result reflects a real HTTP check made when the page is requested.