Free deliverability widget

Add an interactive Email Deliverability Test to your blog, docs or tool — your visitors send an email and get a score out of 100 (SPF, DKIM, DMARC, content, blocklists). Free, nothing stored, attribution link included.

Preview

Copy & paste

<iframe src="https://deliverability.mailtester.ninja/embed/test" id="mtn-dtest" width="100%" height="220" style="border:0;max-width:500px" loading="lazy" title="Email deliverability test by MailTester Ninja"></iframe>
<script>addEventListener("message",function(e){if(e.origin==="https://deliverability.mailtester.ninja"&&e.data&&e.data.mtnHeight){var f=document.getElementById("mtn-dtest");if(f)f.style.height=e.data.mtnHeight+"px";}});</script>
<p style="font:12px sans-serif"><a href="https://deliverability.mailtester.ninja/test">Email deliverability test by MailTester Ninja</a></p>

Also: live stats badge

<iframe src="https://deliverability.mailtester.ninja/embed/badge" width="320" height="150" style="border:0" loading="lazy" title="Email authentication stats by MailTester Ninja"></iframe>

Built & updated automatically by MailTester Ninja — the email verifier that stores nothing. DNS-only, aggregate data, no personal information. · JSON API · RSS