Website Uptime Monitoring
Monitor websites, APIs, and infrastructure from US, EU, and APAC. Know the moment something goes down — before your customers do.
Everything You Need for Reliable Uptime Monitoring
- 1-Minute Check Intervals
- Paid plans include checks as frequent as every 60 seconds so you catch issues fast. Free plans check every 5 minutes.
- HTTP/HTTPS Monitoring
- Send requests with custom headers, body, and authentication to match your exact API or website setup. Validate status codes and keywords.
- TCP Port Checks
- Check if any TCP port is open and accepting connections — databases, Redis, SMTP, SSH, and more.
- DNS Lookups
- Verify DNS records resolve correctly. Supports A, AAAA, CNAME, MX, TXT, NS, SOA, and SRV record types.
- Ping/ICMP
- Test basic host reachability with ICMP ping. Ideal for bare-metal servers, network equipment, and IoT devices.
- Heartbeat/Cron
- Your service pings a unique URL on a schedule. If a ping is missed, we alert you. Perfect for cron jobs and background workers.
How Uptime Monitoring Works
1
Add Your URL
Enter your website or API endpoint. Configure check interval, expected status code, and optional keywords.
2
We Monitor 24/7 from Multiple Regions
Webalert pings your site from the US, EU, and APAC at the interval you choose. Every check is logged with response time.
3
Get Alerted Instantly
If something goes wrong, you're notified via Slack, email, SMS, or webhook — within seconds. Downtime is confirmed from multiple regions.
Related Features
SSL Certificate Monitoring
Get alerts before your SSL certificates expire. Automatic detection and configurable reminders.
Public Status Pages
Give your customers a branded status page with real-time updates and custom domain support.
Response Time Monitoring
Track response times across regions and get alerted when performance degrades.
Start monitoring uptime in under a minute
Free forever plan with 3 monitors. No credit card required. Set up in under 2 minutes.
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How to Calculate Website Uptime (And Why 99% Isn't Enough)
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