Gmail Address Checker icon

Gmail Address Checker

by cti-tl · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 21 Oct 2026

Gmailで送信前に外部ドメインのメールアドレスをリアルタイムで警告表示する拡張機能

Users
18
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#161K
#134K among extensions
Version
0.1.0
updated 12 May 2026

Users

monthly, 11 months
0918Dec 2025Jun 2026Oct 2026
Latest, 21 Oct 2026: 18 usersMove the mouse over the chart for any month

Ratings count

monthly, 11 months
001Dec 2025Jun 2026Oct 2026
Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Gmail Address Checker

外部ドメインへのメール送信が多い場合のチェックの簡易化にお役立てください

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+1+5.9%00.00
6 months+7+63.6%00.00

Version history

2 versions recorded
0.1.012 May 2026
0.0.48 Dec 2025

Details

Category
Tools
First seen
8 Dec 2025
Size
73 KB
Languages
ja
Pricing
Free
Extension ID
ffmdbmlidlfhkgkcneihnhoabdmjjfld

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
activeTabstorage
Site access
https://mail.google.com/*

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