Check a domain

Custom DKIM selectors

Up to 5, comma-separated. A run with custom selectors is not recorded.

What the grades mean

A+
excellent ahead of most domains
A
strong minor polish possible
B
ok weaknesses worth fixing
C
risky fix before your next audit
D
broken users will notice
F
critical fix today

How scoring works

Every check of a domain, in one spectrum.

One run covers the DNS, TLS, HTTP, email and IP setup of a domain and keeps the history of its results.

Try example.com or netray.info.

One protocol only: DNS, TLS, HTTP, Email, IP.