Is It Down
Check if a website is down for everyone or just you.
Check if a website is down for everyone or just you.
This free Is It Down from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Is It Down
- Enter the URL you want to audit.
- Run the scan - the tool fetches the page and parses scripts.
- Review which trackers are present, missing or duplicate.
- Fix issues in your GTM container or page template.
What you can do with the Is It Down
- Verify tracking after a deploy or migration.
- Audit competitor sites for the tools they use.
- Catch duplicate GA tags that inflate metrics.
- Pre-launch QA before pushing a new property live.
Why use KX Toolkit's Is It Down
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
Test in an incognito window with ad-blockers OFF - extensions can mask trackers and produce false negatives.
Related Website Tracking
If you find this tool useful, explore the full Website Tracking collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
How does the Is It Down tool decide a site is down?
The tool sends an HTTP request from a server outside your network and inspects the response code, response time, and content. A successful 200 response means the site is reachable globally. Timeouts, connection refusals, 5xx errors, or DNS failures suggest a real outage. Because the check originates from a third-party server, it bypasses problems with your own network and isolates whether the issue is local to you.
Why does the tool say up while my browser says down?
Your local network, ISP, DNS resolver, browser cache, or VPN may be the culprit. The tool checks from its own location, which usually has clean connectivity. If it reports up, try clearing your DNS cache, switching to a public resolver like 1.1.1.1, restarting your router, or testing on mobile data. The site itself is fine, and the issue lives somewhere between you and the server.
How current is the result I see?
The check is performed in real time when you submit a URL, so the answer reflects the moment of testing. Some services additionally cache recent results for popular sites to reduce load. If you suspect a flapping outage where the site goes up and down, check repeatedly over a few minutes. A single check is a snapshot, not a continuous monitor, and brief outages can easily fall between checks.
Can the tool diagnose the cause of an outage?
Only at a high level. The HTTP status code hints at the layer where things broke. A 5xx points to server-side errors, a connection refused suggests a crashed service or firewall, and a DNS failure means the domain itself is unreachable. Deep diagnosis requires server logs, monitoring dashboards, and infrastructure access that public tools cannot reach. Use the result to confirm the symptom, then escalate internally.
Are there sites the tool cannot reliably check?
Yes. Sites behind aggressive bot protection, geo-fenced applications, intranet hosts, and services that reject non-browser User-Agents may return errors that look like outages even when functioning normally for real users. Login-protected pages also report misleading statuses. For complex applications, dedicated monitoring platforms with browser-based synthetic checks give a more accurate picture than a single HTTP probe.
Should I rely on this tool for production monitoring?
No. It is designed for ad-hoc checks when something feels broken, not for continuous uptime tracking. Production systems need monitoring services that probe from multiple regions every minute, alert on failures, track historical uptime, and escalate to on-call engineers. Use Is It Down to confirm a hunch quickly, then rely on a proper monitoring stack for service-level commitments and incident response.
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