DNS monitoring
Know when DNS changes unexpectedly.
PingXen checks important records and alerts you when the answer no longer matches what you expect.
Core records
Watch A, AAAA, CNAME, MX, NS and TXT records.
Change detection
Compare live DNS answers against the expected value.
Mail safety
Catch MX, SPF and DKIM changes before email delivery suffers.
Add DNS monitoring
Start with the records your website and email depend on.