Performance Observer Extension icon

Performance Observer Extension

by glundgren93 · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Monitor web performance metrics using PerformanceObserver.

Users
11
−2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#188K
#157K among extensions
Version
1.0
updated 2 May 2024

Users

monthly, 2 years
0612May 2024Aug 2025Oct 2026
Latest, 16 Oct 2026: 11 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
001May 2024Aug 2025Oct 2026
Latest, 16 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 Performance Observer Extension

A simple extension that allows you to see some web core vital metrics of a website.

Growth

WindowUsersChangeRatingsRating
7 days−1−8.3%00.00
30 days−2−15.4%00.00
6 months+2+22.2%00.00
1 year0+0.0%00.00

Chrome Web Store search rankings

Where Performance Observer Extension appears when people search the store, with the 30 day change
Search phrasePosition30 days
performance#48−10

Version history

1 versions recorded
1.01 May 2024

Details

Category
Developer Tools
First seen
1 May 2024
Size
37 KB
Languages
en
Pricing
Free
Privacy policy
github.com
Extension ID
jgfdkpfnepoinddnojaiefnookhjdhdg

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
tabsstorageactiveTabscripting

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