Outage detection + uptime monitoring

No verdicts without evidence.

WebsiteDown gives you an evidence-backed answer when a site feels broken. We combine live server probes, DNS and latency checks, official status sources, community reports, and outage history into one clear verdict.

WebsiteDown™ is operated by Vantlir LLC, an Illinois company.

800+
Services tracked
21
Service categories
60s
Starter / Growth check interval
1–5 min
Typical alert delivery

What we're trying to do

When a service feels broken, the first thing you want is a straight answer: is it down for everyone, or just for me? Most status checkers either show a cached green dot from the vendor's own page, or take a wild guess from social chatter. Neither tells you what's actually happening right now.

WebsiteDown runs a real HTTP probe against the service at the moment you ask, and pairs it with an AI source scan of the live web — so you see the probe result, the corroborating signals, and the sources behind them on the same page. No verdicts without evidence.

No required signup for one-off checks. No popup walls. Ads on the free pages keep the manual checker available to anyone; the paid plans pay for the monitoring infrastructure that runs on a schedule for sites you own.

How it works

1
Direct HTTP probe
When you enter a domain, we send an HTTP request from our serverless infrastructure and record status code, response time, and reachability. One probe per check today — we don't claim multi-region until that ships.
2
AI source scan
An AI summary reads Twitter/X, Reddit, news sites, and official status pages, then surfaces the strongest corroborating signals. Sources are linked next to the summary so you can check the work.
3
Community pulse
Visitors can report problems they're seeing. Aggregated reports help distinguish a local network issue from a wider outage — useful when the probe says "up" but the social signal says otherwise.
4
Outage history & monitoring
Starter (5 monitors) and Growth (25 monitors) plans turn one-off checks into 60-second monitoring with email, Telegram, and Discord alerts — typically delivered within 1–5 minutes of detection.

What we track

800+ services across 21 categories — social media, cloud platforms, AI services, gaming, banking, telecom, e-commerce, dev tools, and more. Each tracked service has its own permalink (e.g. /is-discord-down) with outage history and live community reports. Coverage grows as services launch and as outages start showing up in our trending feed.

Frequently asked questions

How does WebsiteDown check if a website is down?
We send a real HTTP request to the service from our serverless infrastructure and record status, latency, and reachability. Alongside the probe, an AI summary scans Twitter/X, Reddit, news, and official status pages and links the sources it used — so the verdict is yours to verify.
Is it free to use?
Yes. Manual checks with the AI source scan are free, no account required. The Starter ($4.99/mo) and Growth ($12.99/mo) plans add automated 60-second monitoring with alerts via email, Telegram, and Discord.
Why does the check say a site is up when it feels slow?
Our probe checks reachability and HTTP response. A site can respond with a 200 OK while serving a degraded experience. The Speed Test tool measures DNS, time to first byte, and total load time so you can see where time goes.
Do you probe from multiple regions?
Not today. Each check runs one HTTP probe from one serverless region. Region-pinned probes are on the roadmap; we'll update this answer when they ship.
How is this different from Downdetector?
Downdetector relies primarily on user reports to infer outages. WebsiteDown layers user reports on top of a direct server probe and an AI source scan of the live web — so a verdict has multiple corroborating signals attached, with the sources linked.

Check if a website is down right now

Free, no sign-up required. Probe + sources in one place.

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About WebsiteDown — Website Outage Detection & Uptime Monitoring