Extension Tracker

GMailSend Address Checker - 誤送信防止 -

100,000 users Rated 4.40 from 20 ratings Last updated 7 Oct 2022

By SEYA.WORK Live in the Chrome Web Store gdckkpniogfhndklmlgbnolnkbceeofp Search Google ↗ Last checked 11 Nov 2026, 13:03 UTC

The listing

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

メール送信前に、From,To,Cc,Bcc,件名,添付ファイルをチェックして、誤送信を防止します。 (C)SEYA.WORKSummary from the listing
Developer
SEYA.WORK
Enhanced Safe Browsing
Trusted. What this means →
Category
Productivity › Workflow & Planning
First published
7 May 2015
Last updated
7 Oct 2022
Version
0.28.1
Size
22.11 KiB
Minimum Chrome
88
Languages
6 languages

Deutsch, English (United States), Tiếng Việt, 中文（台灣）, 日本語, 한국어

Website
seya.work
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
98K100K102KTracking began 27 Sep 202627 Sep4 Oct11 Oct18 Oct25 Oct1 Nov8 Nov2026-09-27: 100,000 users2026-09-30: 100,000 users2026-10-07: 100,000 users2026-10-14: 100,000 users2026-10-20: 100,000 users2026-10-28: 100,000 users2026-11-04: 100,000 users2026-11-11: 100,000 users100,00098K100K102KTracking began27 Sep18 Oct8 Nov2026-09-27: 100,000 users2026-09-30: 100,000 users2026-10-07: 100,000 users2026-10-14: 100,000 users2026-10-20: 100,000 users2026-10-28: 100,000 users2026-11-04: 100,000 users2026-11-11: 100,000 users100K
Average rating
4.304.404.5027 Sep11 Oct25 Oct8 Nov4.404.304.404.5027 Sep18 Oct8 Nov4.40
Number of ratings
2027 Sep11 Oct25 Oct8 Nov202027 Sep18 Oct8 Nov20
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-11-11100,0004.4020
2026-11-04100,0004.4020
2026-10-28100,0004.4020
2026-10-20100,0004.4020
2026-10-14100,0004.4020
2026-10-07100,0004.4020
2026-09-30100,0004.4020
2026-09-27100,0004.4020
Users, 7 days
No change
since a week ago
Users, 30 days
No change
+0.0%
Rank
#1,054
by users, of 292,131 extensions
In its category
#371
of 49,294 in Workflow & Planning

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

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 27 Sep 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 where it runs scripts
  • http://mail.google.com/*mail.google.com
  • https://mail.google.com/*mail.google.com

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 11 Nov 2026, 13:03 UTC; next check around 18 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “GMailSend Address Checker - 誤送信防止 -” (gdckkpniogfhndklmlgbnolnkbceeofp). Chrome Web Store data, last checked 2026-11-11. https://extensiontracker.com/extension/gdckkpniogfhndklmlgbnolnkbceeofp. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_gdckkpniogfhndklmlgbnolnkbceeofp,
  title   = {GMailSend Address Checker - 誤送信防止 - (gdckkpniogfhndklmlgbnolnkbceeofp)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-11},
  url     = {https://extensiontracker.com/extension/gdckkpniogfhndklmlgbnolnkbceeofp},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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