NerdTools Fast, free online tools for sysadmins, developers, and nerds.

Uptime monitoring without the noise.

Track availability and response time, plus daily SSL and domain expiry checks. Keep reports public or private and get alerts when things drift.

Free forever plan
No credit card required
30-second check intervals

Join thousands of developers who trust NerdTools to watch their sites 24/7

Checks from 30 seconds
SSL & Domain expiry alerts
Instant Email alerts
Beautiful public report pages

Everything you need to sleep better at night

No complex setup. No hidden limits. Just reliable monitoring that works.

Lightning-Fast Checks

Monitor from multiple global locations from as little as 30 seconds. Catch outages before your customers notice—even if it's just a regional hiccup.

Response Time Trends

Beautiful charts show you exactly when performance degrades. Spot patterns, optimize your stack, and keep your site blazing fast.

SSL Expiry Alerts

Never let a certificate lapse again. We check daily and warn you well before expiry—no more embarrassing "Your connection is not private" errors.

Domain Renewal Reminders

Your domain expiring could kill your business. We track renewal dates and alert you ahead of time—no extra tools needed.

Public or Private Reports

Share beautiful status pages with your team or customers. Keep sensitive monitors private. You control who sees what.

Instant Notifications

Get alerted via Discord, Slack, or email the moment something goes wrong. No more finding out about downtime from angry customers.

Get started in 60 seconds

No complex configuration. No credit card. Just add your URL and go.

1

Add Your URL

Enter any website, API endpoint, or service you want to monitor. HTTPS, HTTP—we handle it all.

2

Choose Your Regions

Select where you want to monitor from. Multi-location checks reduce false positives.

3

Set Notifications

Get email alerts the moment something needs your attention.

4

Sleep Soundly

We'll watch your site 24/7. You focus on building, we'll handle the watching.

Why pay when you can get it free?

Everything you need and more, without the enterprise price tag.

Features
Free
Free
Essential monitoring, no cost
Solo
£7.50/mo
For personal projects and freelancers
Plus
£30.00/mo
Most popular
Best value for growing teams
Premium
£90.00/mo
Maximum insight at maximum speed
Uptime monitors
2
from 15 mins
15
from 5 mins
100
from 1 min
250
from 30 secs
Server monitors 1 8 60 150
Screenshot monitors
1
from 12 hours
3 day history
5
from 1 hour
7 day history
30
from 10 mins
14 day history
100
from 5 mins
30 day history
DNS redirects 1 10 75 150
Short links Unlimited Unlimited Unlimited Unlimited
Email alerts

Frequently asked questions

Everything you need to know about NerdTools Uptime Monitoring.

Yes, really free! No credit card required. We offer a limited uptime monitoring service as part of our suite of free tools for developers. More features are available in our paid plans.

Depending on your plan , we can check from 30 seconds. That's 2,880 checks per day, 86,400 per month—ensuring we catch even brief outages.

Absolutely! You can monitor any HTTP/HTTPS endpoint. Track your REST APIs, GraphQL endpoints, microservices—if it responds to HTTP, we can monitor it.

We send email notifications when your site goes down. You can configure which monitors send alerts from your account dashboard.

Yes! You can make reports public and share them with your team or customers. Or keep them private—it's up to you.

Stop hoping your site is up. Know it is.

Join thousands of developers who trust NerdTools to watch their sites 24/7.
Free forever. No credit card required.