All your domains. One calm control panel.
Track renewals, DNS changes, uptime, and watchlists — without logging into five different registrars.
Built for founders and agencies who take infrastructure seriously.
Managing domains shouldn't feel fragile.
- Expiration dates buried in inboxes
- DNS changes discovered too late
- Client domains scattered across registrars
- Downtime alerts coming from three different tools
Domnr centralizes it.
Everything in one calm control panel.
A clean, centralized view of every domain you own — and the ones you don't.
Unified Portfolio
See all domains across registrars in a single dashboard.
Renewal Visibility
Track expiration dates and renewal status clearly.
Change Alerts
Get notified when DNS or nameservers change.
Uptime Monitoring
Catch downtime before your clients do.
Domain Watchlist
Track domains you don't own — including expiration dates and status.
Incident Tracking
Know when sites go down — and when they're back.
How Domnr works
Add your domains
Import manually or paste your portfolio.
We monitor continuously
DNS changes, uptime, expiration timelines.
Stay ahead
Get notified before something breaks.
Built for founders and agencies.
Founders
- Keep side projects organized
- Monitor renewals without spreadsheets
- Know instantly when something changes
Agencies
- Manage client domains centrally
- Avoid renewal embarrassment
- Monitor uptime across portfolios
Start free. Scale as your portfolio grows.
Simple pricing. Upgrade anytime.
Pro
For founders & solo portfolios
$15/mo billed annually · save $46/yr
- 100 domains
- 50 monitors
Growth
For investors, agencies & teams
$31/mo billed annually · save $94/yr
- 250 domains
- 100 monitors
Business
For high-volume & teams
$63/mo billed annually · save $190/yr
- 500 domains
- 250 monitors
| Feature | Free | Pro | Growth | Business | Enterprise |
|---|---|---|---|---|---|
| Portfolio size | 5 domains | 100 domains | 250 domains | 500 domains | Custom |
| Watchlist size | 5 domains | 25 domains | 100 domains | 250 domains | Custom |
| DNS monitoring interval | 24h | 1h | 15 min | 5 min | Custom |
| DNS change history | 7 days | 90 days | 1 year | Unlimited | Unlimited + export |
| Uptime monitors | 3 | 50 | 100 | 250 | Custom |
| Seats included | 1 | 1 | 3 | 5 | Custom |
Built by engineers who care about DNS integrity.
- Secure infrastructure
- Stripe billing
- No registrar lock-in
- Data export available
Frequently asked questions
Do I need to transfer domains?
Does Domnr connect to registrars?
How are DNS changes detected?
Is this a registrar?
Can agencies manage clients separately?
Can I export data?
Free domain tools — no signup
See all tools →WHOIS Lookup
Look up WHOIS registration data for any domain — registrar, creation and expiry dates, nameservers, and status.
DNS Lookup
Look up A, AAAA, MX, TXT, NS, CNAME, and SOA DNS records for any domain.
SSL Certificate Checker
Check a domain’s SSL/TLS certificate — issuer, validity dates, and days until expiry.
Domain Age Checker
Find out how old a domain is, based on its WHOIS creation date.
From the blog
Read the blog →Monitoring certificates when they rotate weekly
When certificates rotate every few weeks, 'alert 30 days before expiry' is meaningless. The monitoring model has to flip from expiry countdown to rotation health: did the cert actually change, on every endpoint, with the right chain? Here's what to watch instead.
Merkle Tree Certificates explained
Post-quantum signatures threaten to bloat every TLS handshake by kilobytes. Merkle Tree Certificates are the clever fix: batch thousands of certificates into a tree, sign one root, and ship a tiny proof instead of a giant signature. Here's how they work, why they're so much smaller, and where they fit.
Post-quantum TLS migration: you're probably already doing it
Post-quantum key exchange is already in a third of real HTTPS traffic and most operators never noticed. What X25519MLKEM768 actually changes, why 'harvest now, decrypt later' makes key exchange urgent today, and a practical migration path — plus the half of the problem nobody has solved yet.