DKIM Key CheckContact us

DKIM key validator

Make sure your DKIM key is valid and strong.

Look up any DKIM selector, validate the key, check its length and find out when it's time to rotate.

Check a DKIM keyHow it works
Selector google._domainkey
  • Record foundYes
  • Key validYes
  • Key length2048 bit
  • Last rotated14 months ago
  • RecommendationRotate this quarter

What we do

01

Selector lookup

Find and validate any DKIM selector.

02

Strength check

Flag weak 1024-bit keys.

03

Rotation reminders

Get told when keys are getting old.

How it works

  1. 1

    Paste or upload

    Drop in your email, list or domain. No setup needed.

  2. 2

    Get results

    A clear score and line-by-line findings in seconds.

  3. 3

    Improve

    Apply suggested fixes and test again.

Get in touch

Leave your email and we will reply within one working day, or write to us at hello@dkimkeycheck.com.