Siteimprove Browser Extension

Name: Siteimprove Browser Extension
Rating: 1.6667 (6 reviews)
Author: Siteimprove

Website performance scores at your fingertips Have the most comprehensive performance metrics always by your side: - how a web page lives up to quality standards - how discoverable it is for search engines - if it meets accessibility standards

This add-on was removed from Firefox Add-ons Store on 2025-08-27

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Features & Capabilities

Website performance scores at your fingertips Have you ever caught yourself browsing your website and wondered how a particular page is actually performing? If you did, the Siteimprove Browser Extension is exactly what you’re looking for. No need to leave the page anymore, you can see performance scores directly on the web page and start improving your DCI™ Scores. You have the most comprehensive performance metrics always by your side. Instantly see: how a web page lives up to quality standards how discoverable it is for search engines if it meets accessibility standards

Not a Siteimprove customer? Learn more about the Digital Certainty Index and how your website performance scores are measured.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.1.1 Last updated: 2020-05-15

Version code:

5025703

Creation date:

2018-02-16

Risk:

Permissions:

Size:

42.47KB

Email:

ex*****@siteimprove.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2025-08-27

Compare stats and ranking:

Other platforms

Siteimprove Browser Extension (v1.1.2)

1,000 5.00

(2)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Siteimprove

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/digital-certainty-index/

Email:

ex*****@siteimprove.com

Website:

http://siteimprove.com/

User Reviews

Doesn't really work. I have a Siteimprove account as a web developer at my workplace (a university) and none of the pages I browse to with it are giving any info from Siteimprove. They all say "No DCI score to show This page is not part of your Siteimprove subscription." The Google Chrome accessibility checker works well, but needs to be ported to Firefox!

by da*****, 2021-02-05

Need an account and when came to siteimprove.com/en/pricing/ see a form in an iframe … How they can give advice on accessibility …

by sh*****, 2020-09-22

I'm not sure why the Firefox version of the extension needs an account and logon, which means you have to request their demo, when the Chrome version just works without jumping through hoops. Really? I need a demo for FireFox to show me how to click the extension button because Chrome users are so smart they don't need to go through the demo... So... that is straight up discrimination towards FireFox users. Ironic.

by Fi*****, 2020-08-17

View all user reviews ›

Is Siteimprove Browser Extension Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Siteimprove Browser Extension requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Low ******* ****** ** *** ********* ******** ***************

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Siteimprove Browser Extension may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.