DMarcus — dmarc.mx Email Security Checker

Name: DMarcus — dmarc.mx Email Security Checker
Author: dmarc.mx

dmarc.mx · Developer Tools

Open in Chrome Web Store Website

Users

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Avg rating

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Ratings

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Updated

May 19, 2026

Media

1 item

Description

Check any domain's email security (DMARC, SPF, DKIM, BIMI, MX, MTA-STS) client-side via DNS-over-HTTPS. No server, no tracking. Quick, open source email security analyzer.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
41
Description length
Characters in the listing description.
172
Media assets
Screenshots and videos on the listing.
1
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
Yes
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
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Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
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These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.