DNS
Reverse DNS / PTR Checker
Check that reverse and forward DNS agree.
UNDERSTAND THE RESULT
What this check tells you
Each returned PTR hostname is resolved forward and compared with the original address. Forward-confirmed reverse DNS is useful for mail configuration, but does not guarantee delivery or reputation.
A snapshot, with context
Every report includes its check time. DNS caches, CDN edges and server configuration can change. Repeat a check after a fix and compare the actual records or responses.
Read the methodology ↗