Browser extension

When a site fails to load, see whether it looks down for everyone or just you.

The Damn Is It Down extension watches for a main page that fails to load, then checks our independent probes for that hostname. It shows a short, cautious verdict on the toolbar icon and in a popup. It is in the Chrome Web Store. Microsoft Edge Add-ons and Firefox Add-ons listings are not live yet.

Add to Chrome

What you see

• Down for everyone — only when our own checks are failing and a second independent source agrees. We never use this label from a vendor status page alone, or from our checks alone.
• Looks down from our checks — our probes are failing, but we do not yet have a second source, so we do not call it a confirmed outage.
• Looks up for us, likely just you — the page failed in your browser, but our checks look normal. The popup links to the Is it just me? test on that service's status page (for example Slack), which points to your Wi-Fi, DNS, ISP, or area and gives two steps to try.
• Not tracked yet — we do not monitor that hostname yet. A link lets you search for it or add it. The extension never adds a site on its own.

If your browser says you are offline, the extension tells you that locally and does not contact us. It also skips localhost, private addresses, and built-in browser pages. Wording stays cautious: we do not claim certainty.

Privacy

We don't run ads. We don't sell your data. The extension has no analytics, no advertising, no account, and no third-party services.

It only contacts damnisitdown.com, and only with the hostname of a page that failed to load, or of the tab you have open when you click the icon. It never sends the full URL, the path, query string, cookies, page title, or your browsing history. Successful page loads are not reported automatically.

A short cache of recent verdicts stays on your device so the same failed hostname is not looked up over and over. You can remove the extension at any time; that cache is deleted with it. The website privacy policy is in the privacy policy, and the same no-ads promise is on Our promise.

Get it from the Chrome Web Store

Install it only from the official Chrome Web Store listing. Do not download it from anywhere else. Microsoft Edge Add-ons and Firefox Add-ons listings are not live yet.

Edge and Firefox (developer install)

Until those store listings are live, you can load the unpacked extension from our source repository in developer mode. This is a manual install for people who are comfortable doing that. It is not an official store install, and the browser will warn you about that.

1. Get the source fromGitHub (extension folder).
2. In Chrome or Edge, open the extensions page and turn on Developer mode.
3. Choose Load unpacked and select the extension folder.
4. In Firefox, go to about:debugging, choose This Firefox, then Load Temporary Add-on and select the folder's manifest.json. Temporary add-ons are removed when Firefox quits.

The extension asks for three permissions: to notice when a main page fails to load, to remember recent verdicts on your device, and to read the hostname of the tab you have open when you click the icon. It can contact only damnisitdown.com.