Website Uptime Monitor – Check If Any Site Is Up or Down
Save a site to watch - it's checked automatically every 15 minutes, and (if you give an email) you'll be notified the instant it goes down, and again once it's back.
Guests can save up to 3 monitored site(s). Sign up for unlimited monitors.
What Is a Website Uptime Monitor?
An uptime monitor checks whether a website is online and responding, and how fast it responds. Use this tool to instantly answer the classic question — "is this site down, or is it just me?" — and to keep an eye on the availability of your own websites, client sites, or services you depend on. Free, instant, and no signup needed.
| Price | 100% Free |
| Signup | Not required |
| Shows | Up/down status, HTTP code, response time |
| Check type | Real-time, on-demand |
| Best for | Site owners, agencies, developers |
How to Check a Website's Status
- Enter the website URL you want to check.
- Run the check. The tool sends a real request to the site and measures the response.
- Read the result: up or down status, HTTP response code, and response time.
Why Uptime Matters More Than You Think
For SEO: if Google's crawler repeatedly hits your site while it is down, crawl frequency drops and rankings can slip. Extended or frequent downtime is a genuine ranking risk — and most owners never notice their 3 AM outages until traffic mysteriously falls.
For business: every minute of downtime on a store or lead-gen site is lost revenue. Worse, visitors who hit a dead site rarely come back.
For agencies: when you manage client websites, being the one who tells the client "your site went down last night, we already fixed it" — instead of the client telling you — is the difference between a vendor and a partner.
Understanding the Results
HTTP 200: the site is up and serving normally. 301/302: the URL redirects — usually fine, but worth checking the destination. 404: the page does not exist. 500/502/503: the server is having problems — this is real downtime. Timeout: the server did not answer at all, meaning the site is effectively down or extremely slow.
Response time matters too: consistently slow responses (multiple seconds) hurt user experience and Core Web Vitals even when the site is technically "up".
Who Uses This Tool?
Website owners verifying their site after hosting changes, DNS updates, or SSL renewals. Agencies and freelancers spot-checking client sites during maintenance. Developers confirming a deployment did not take production down. Everyday users checking whether a service is down for everyone or just their connection.
A Simple Free Monitoring Routine for Agencies
If you manage multiple client sites, build this 5-minute morning habit: keep all client URLs in a text file, open them together with the Bulk URL Opener for a visual check, and run any suspicious one through this uptime monitor for the HTTP code and response time. Log the results in a simple sheet. When a client's site has an incident, you will be the one who reports it first — with data — and that reliability is what turns one-project clients into retainer clients.
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Frequently Asked Questions
Is the uptime monitor free?
Yes — free to use with no signup required.
Why does a site load for me but show as down here (or vice versa)?
Your browser may be showing a cached copy, or the site may be blocked/slow only on your network or region. The tool checks from its own connection, giving you an independent second opinion.
What response time is considered good?
Under 500ms is good, under 1 second is acceptable, and consistently over 2–3 seconds indicates a performance problem worth investigating.
Does downtime really affect SEO?
Occasional brief downtime is harmless, but repeated or extended outages reduce crawl rate and can cause ranking drops — Google will not keep sending users to an unreliable site.
Can I monitor a site continuously?
Use the tool anytime for instant on-demand checks of any URL. For always-on monitoring of your own sites, run checks regularly — for example every morning as part of your routine.