# app.telemetry Page Speed Monitor

> Get the page load times of any web page! app.telemetry Page Speed Monitor shows offset and duration of each step during the page load based on W3C navigation timing.

Canonical page: [https://chrome-stats.com/d/apptelemetry](https://chrome-stats.com/d/apptelemetry)

## Overview

- **ID:** `apptelemetry`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** app.telemetry
- **Category:** web-development
- **Daily users:** 1,130
- **Rating:** 3.93 / 5 (15 ratings)
- **Version:** 17.1.11resigned1
- **Last updated:** 2024-04-25
- **First published:** 2012-06-12
- **Size:** 33 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/apptelemetry/)

## Description

The app.telemetry Page Speed Monitor Chrome extension enables users to track the load times of any web page instantly. By leveraging the W3C navigation timing API, it provides detailed insight into the offset and duration of each stage during a page's load process. Upon visiting a page, users see the load time right in the menu bar, with further detailed metrics accessible with a simple click.

Ideal for web developers, SEO specialists, and performance analysts, this extension helps identify bottlenecks and optimize website speed effortlessly. For comprehensive information on metrics and usage, visit the official app.telemetry page speed monitor website.

## Rankings

- #3,110 — Overall
- #341 — Web Development
- #5 — monitor
- #35 — speed
- #58 — app
- #62 — page

## Permissions and access

### Permissions

- `tabs`
- `http://*/*`
- `https://*/*`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Users appreciate this add-on as a simple and clear tool to measure page load times, serving as a suitable replacement for deprecated extensions. However, multiple reviews highlight issues like lack of real-time speed display during loading, small icon/badge size, privacy concerns due to extensive permissions, compatibility problems with privacy settings, and unclear visual cues for loading completion.

### Pros

- Provides clear page load speed information.
- Serves as a good replacement for the Extended Statusbar extension.
- Simple and easy to use for monitoring page load times.
- Offers detailed internet speed and stability information.

### Cons

- Lacks option to display loading speed in real time during page loading.
- The icon and badge display are small and difficult to read for some users.
- Requires invasive permissions, raising privacy concerns.
- Compatibility issues when privacy.resistFingerprinting is enabled.
- Unclear indication of when page loading completes, suggesting need for color changes in icon.

## Similar extensions and apps

- [Page Speed Monitor](https://chrome-stats.com/d/page-speed-monitor) — 1 users, 1.00 / 5
- [Load timer](https://chrome-stats.com/d/load-timer) — 820 users, 4.68 / 5
- [Page Performance Test](https://chrome-stats.com/d/page-performance-test) — 487 users, 3.75 / 5
- [Page Load Timer](https://chrome-stats.com/d/page-load-timer) — 424 users, 3.40 / 5
- [Page Load Timer](https://chrome-stats.com/d/page-load-time) — 2 users
- [Website Speed Meter](https://chrome-stats.com/d/website-speed-meter) — 10 users
- [Web Performance Analyzer](https://chrome-stats.com/d/web-performance-analyzer) — 3 users
- [Load Time Plus](https://chrome-stats.com/d/load-time-plus) — 3 users
- [Page Load Time Indicator](https://chrome-stats.com/d/page-load-time-indicator) — 2 users
- [Page Load Timer Q](https://chrome-stats.com/d/page-load-timer-q) — 2 users
- [Page Load Timer Plus](https://chrome-stats.com/d/page-load-timer-plus) — 1 users
- [Page Speed Monitor v2](https://chrome-stats.com/d/page-speed-monitor-v2)

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Source: [Chrome-Stats](https://chrome-stats.com/d/apptelemetry)