Honban Alert

by nico253 · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

開発者向けツール。本番環境として指定したドメインのWebページを表示しようとした際にアラートバナーを表示するほか、リクエスト自体をブロックすることも可能です。

Users

−5 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#97K

#81K among extensions

Version

1.5.0

updated 13 Jul 2026

Users

monthly, 2 years

Latest, 16 Oct 2026: 68 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 16 Oct 2026: 3 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 Honban Alert

To prevent unintended operations on the production environment, this tool provides alert and request blocking features for domains designated as production. Features ◆ Banner Display An alert banner will be displayed on websites of the specified domains. You can still operate the site while the banner is displayed; however, if you're checking the design on a production environment, we recommend turning this feature off to avoid any design disruptions. ◆ Request Blocking Blocks requests to the specified domains, preventing them from reaching the server. This includes all requests, even asynchronous ones such as Ajax. ◆ POST Request Blocking Only POST requests to the specified domains will be blocked. ※ Asynchronous requests like Ajax will also be blocked. These features can be freely toggled ON/OFF from the extension icon. Settings like the specified domains can be imported/exported from the extension's options. Wishing for fewer unfortunate accidents in production environments...