Is Your Website Down, or Is It Just You? How to Tell in 60 Seconds

You type in an address, hit enter, and… nothing. A spinning tab, a timeout, or a cryptic error. The first question is always the same: is the site actually down, or is it just me?

Here's how to answer that in under a minute.

Step 1: Rule out your own connection

Before blaming the website, spend ten seconds ruling out the obvious:

• Open a different website. If nothing loads, the problem is your internet, not the site.
• Try the page on mobile data instead of Wi-Fi (or vice versa).
• Open the page in a private/incognito window to bypass a bad cached version.

If other sites work fine and only this one fails, the problem is probably on their end — or somewhere between you and them.

Step 2: Check if it's down for everyone

The fastest objective test is to ask a server outside your network to load the page. If a machine on the other side of the world also can't reach it, it's genuinely down.

The quickest way is a free website down checker: paste the URL and it fetches the page from an independent server, reports the HTTP status code and response time, and tells you plainly whether it's up or down — no signup needed.

Step 3: Read the error, because it tells you a lot

How a site fails narrows down the cause:

• "This site can't be reached" / connection timed out — DNS or the server itself is unreachable. Often a hosting or network outage.
• 500 Internal Server Error — the server is up but the application crashed. A code or database problem.
• 502 / 504 Gateway errors — a proxy or load balancer can't get a response from the app behind it.
• 503 Service Unavailable — the server is overloaded or in maintenance.
• SSL / certificate warning — the site is reachable but its HTTPS certificate expired or is misconfigured.

We break these down in 500, 502, 503, 504: what those HTTP errors mean.

Step 4: If it's your site, check the usual suspects

If the site is yours and it's really down, the most common causes are:

1. Expired SSL certificate — extremely common and totally preventable.
2. The server ran out of memory or disk.
3. A bad deploy that broke the application.
4. A database that stopped accepting connections.
5. Expired domain or a DNS change that hasn't propagated.

Stop being the last to know

The worst way to learn your site is down is a customer telling you. The fix is simple: put an automated monitor in front of it that checks every minute from outside your network and messages you the moment it fails.

Create a free SiteIsOnline account, add your site, and turn on email plus one real-time alert channel. Next time you'll know before anyone asks — and if you want the deeper background, start with our complete guide to uptime monitoring.