Extension Tracker

Sendfeather — email deliverability checker

2 users No ratings yet Last updated 16 Oct 2026

By Sendfeather Live in the Chrome Web Store kbdmbhcmoocckaoaemaagcmhbpgnbndn Search Google ↗ Last checked 23 Oct 2026, 06:26 UTC

The listing

What the Chrome Web Store shows, as of the last check

Check any domain's MX, SPF, DKIM and DMARC records in plain language. Free, no account, no tracking.Summary from the listing
Developer
Sendfeather
Enhanced Safe Browsing
Trusted. What this means →
Category
Productivity › Developer Tools
First published
16 Oct 2026
Last updated
16 Oct 2026
Version
1.0.0
Size
22.27 KiB
Minimum Chrome
88
Languages
1 language

English (United States)

Website
sendfeather.com
Support page
https://sendfeather.com/docs/domains
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store

The Chrome Web Store has shown a user count on one check so far. The chart appears after the second.

Show the numbers
CheckedUsersRatingRatings
2026-10-232––
2026-10-17–––
Users, 7 days
No change
since a week ago
Users, 30 days
–
needs a month of history
Rank
#246,648
by users, of 289,024 extensions
In its category
#26,006
of 30,166 in Developer Tools

What changed

Every change found on a check, newest first

  1. Now trusted by Enhanced Safe Browsing.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 17 Oct 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Sites
  • https://cloudflare-dns.com/*cloudflare-dns.com
  • https://dns.google/*dns.google
Browser features
  • activeTabThe tab you're on, only after you click the extension

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
KuyumBase Gold Prices — Live Turkish Gold Tracker5 –– Tools
All 2 extensions by Sendfeather →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 23 Oct 2026, 06:26 UTC; next check around 15 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Sendfeather — email deliverability checker” (kbdmbhcmoocckaoaemaagcmhbpgnbndn). Chrome Web Store data, last checked 2026-10-23. https://extensiontracker.com/extension/kbdmbhcmoocckaoaemaagcmhbpgnbndn. Accessed 2026-11-08.
BibTeX
@misc{extensiontracker_kbdmbhcmoocckaoaemaagcmhbpgnbndn,
  title   = {Sendfeather — email deliverability checker (kbdmbhcmoocckaoaemaagcmhbpgnbndn)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-23},
  url     = {https://extensiontracker.com/extension/kbdmbhcmoocckaoaemaagcmhbpgnbndn},
  urldate = {2026-11-08}
}

The data is free to reuse under CC BY 4.0.

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