DNS · Certificates · Uptime · Domain health
Is your website safe, up, right, and ready?
The four things that matter about a website — continuously answered in one place. Your report starts streaming in seconds, then one click to keep watching.
Try: google.com · github.com · cloudflare.com
Four questions. One place.
Safe. Up. Right. Ready.
The Watch this domain button on any report turns the snapshot into a living system. We alert as soon as the next check sees a change — checks run daily on Free, down to every minute on Business.
Safe
no attacks or spoofing
Hijacks, DNSSEC failures, blacklistings, email spoofing, unexpected certificate issuance — caught.
Up
reachable and responding
HTTPS uptime, multi-region probes, response-time thresholds, and port availability.
Right
it is what it is
Your page says what you expect. Silent edits, defacement, and missing content trigger alerts.
Ready
you see what's coming
Cert expiry, domain expiry, and TLS drift — flagged before users hit the problem.
Free tools
Check anything, right now
No account needed. Every tool answers on the page — and links into the full domain report.
Explore
The DNS landscape, mapped
Live statistics from over a million tracked domains — by TLD, registrar, and DNS provider.
Simple pricing
Start free. Upgrade when you need more.
Free
$0forever
- ✓Uptime every 5 min · email alerts
- ✓DNS, DNSSEC, blacklist, email auth daily
- ✓50 monitors · full intelligence report
Starter
$7/month
- ✓5-min uptime · DNS, certs & email auth hourly
- ✓Multi-region probes + page watch · all types
- ✓50 monitors · 500 lookups/day · webhooks
Pro
$19/month
- ✓200 monitors · 5-minute cadence
- ✓Slack, Discord, webhook alerts
- ✓API access · 1-year history · export
Running a fleet? Business — $99/mo: 1,000 monitors at 1-minute cadence. Full comparison →