What you get
Checks every 5 seconds
Pick any interval from 5 seconds to 12 hours.
Instant alerts
Get notified the moment a site goes down or comes back up.
Email notifications
Use our built-in email or connect your own SMTP server.
Telegram alerts
Get down/recovery messages straight to your chat.
WhatsApp alerts
Alerts via CallMeBot with your phone number and API key.
Response time charts
Track how fast your sites respond over time.
SSL monitoring
Get warned before your certificates expire.
Incident timeline
Full history of every outage and how long it lasted.
Server details
IP address, country, and hosting info at a glance.
Import & export
Move your monitors in or out with one-click JSON.
Manual checks
Run a check on any monitor instantly with one click.
Secure by default
All sensitive data is encrypted. Always.
Simple, transparent pricing
Start free, upgrade when you need more.
Free
Starter
Pro
How it works
Three steps. Takes less than a minute.
Add your URLs
Paste any website address. Give it a name, pick a check interval, and you're done.
Set up alerts
Choose how you want to be notified — email, Telegram, WhatsApp, or all three.
Relax
We watch your sites 24/7 and tell you the second something breaks.
Frequently asked questions
Everything you need to know about website uptime monitoring.
How does website monitoring work?
ismysiteup sends HTTP requests to your website at regular intervals (from every 5 seconds to every 12 hours). If your site returns an unexpected status code, times out, or fails to respond, we instantly alert you via email, Telegram, or WhatsApp.
Is ismysiteup free?
Yes! ismysiteup offers a free plan that lets you monitor up to 5 websites with 5-minute check intervals and email alerts. No credit card required.
What alerts do I get when my site goes down?
You get instant notifications through your configured channels — email, Telegram, WhatsApp, or all three. Alerts include the URL, error details, and timestamp. You also get a recovery alert when your site comes back up.
How often does ismysiteup check my website?
Check intervals range from every 5 seconds (Premium plan) to every 5 minutes (Free plan). You choose the interval per monitor based on how critical each site is.
Do I need a credit card to start?
No. The free plan requires no credit card. Just sign up with your email, add your URLs, and start monitoring immediately.
Does ismysiteup monitor SSL certificates?
Yes. ismysiteup automatically checks your SSL certificate expiry dates and warns you before they expire, so you never have a broken HTTPS connection.