[← Free tools](https://ohdear.app/tools) # DNS change alerts

Watch a DNS record for seven days, with hourly checks and email alerts.

Domain or subdomain

Record type A AAAA CNAME MX NS SOA TXT CAA

Your email

After email confirmation, we check using Google's DNS resolver. Two consecutive checks must agree before we send a change alert. TTL changes and record ordering don't trigger alerts.

Up to three watches per email address. Each stops after seven days or 10 alerts. We delete expired watch data within a day, but keep your email address. This doesn't subscribe you to marketing emails.

Need the current values? [Look up DNS records →](https://ohdear.app/tools/dns)

## Need more than seven days?

Oh Dear monitors your DNS records continuously, keeps their change history, and alerts your team when something changes.

[Start monitoring for free](https://ohdear.app/register) [How DNS monitoring works →](https://ohdear.app/features/dns-monitoring)

10 days free. No credit card needed.