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CSP Evaluator icon

CSP Evaluator

CSP Evaluator is a tool that allows developers to check if a Content Security Policy (CSP) serves as mitigation against XSS attacks.

Users20KCurrent public install base
Rating3.1Store average score
Reviews34Public review volume
Manifest versionV3Extension platform version
7-day growth-10KNet users gained this week
7-day growth rate-33.3%Relative weekly velocity
Preview

CSP Evaluator Media preview

2 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

19K22K25K28K31K2026年7月13日2026年7月16日2026年7月19日Latest: 20K
Rating trend

7-day rating trend

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7-day rating change

Start
3.09
Latest
3.09
7-day rating change
0.00
2.993.043.093.143.192026年7月13日2026年7月16日2026年7月19日Latest: 3.09
2026年7月13日2026年7月19日
Growth overview

Daily, weekly, and monthly growth

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1-day growthDeclining
-10K-33.3%
7-day growthDeclining
-10K-33.3%
30-day growthDeclining
-10K-33.3%
Technical snapshot

Version, languages, and crawl freshness

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Version0.3.3
ManifestV3
Size296KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

CSP Evaluator is a small tool that allows developers and security experts to check if a Content Security Policy (CSP) serves as a strong mitigation against cross-site scripting attacks. Reviewing CSP policies is usually a very manual process and most developers are not aware of CSP bypasses.

CSP Evaluator checks are based on a large-scale empirical study and are aimed to help developers to harden their CSP. This tool is provided only for the convenience of developers and Google provides no guarantees or warranties for this tool.

Reviews

Recent review snapshot

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Store average score3.1Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average2.7Average computed only from synced review bodies below
Reviews with text26Synced review bodies
Total ratings / reviews34Chrome Web Store public rating/review count

Store average score: 3.1. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5
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4
3
3
1
2
0
1
14
Barbara Renowden2024年3月21日
1

I have a CSP but this doesn't detect it. So disappointed.

Version 0.2.1Language en
2 helpful · 0 not helpful
Helio Bentes2023年4月17日
1

It doesn't detect meta CSP and it doesn't say anything about it on the description

Language en
5 helpful · 0 not helpful
Serghei Iakovlev2023年4月17日
1

For some unknown reason, when the extension was enabled, my browser sent additional requests to the sites. As a result, I lost a lot of hours debugging my site and trying to find the cause of the duplicate requests. As soon as I turned off the extension, the problem disappeared.

Language en
2 helpful · 0 not helpful
Justus Wingert2022年10月25日
5

Macht wenig überraschend exakt das was dran steht. Keine Ahnung was an anderer Stelle schief gegangen ist, aber es funktioniert sogar in Edge.

Language de
Support Analytics RESONEO2022年9月6日
1

Keeps crashing in Chrome 104

Language en
1 helpful · 0 not helpful
Enis Shala2022年8月25日
1

used it sometime ago and it was working just fine, with current version of chrome is not working anymore, it keeps crashing Version 104.0.5112.101

Language en
7 helpful · 0 not helpful
Nordine Zetoutou2021年12月9日
1

No CSP detected on any webpage.

Language en
Dave Dörenberg-Veltman (Blackpearl1477)2021年3月13日
4

liked it. saved me some headaches!!! was playing around for weeks to get my csp right! there's one drawback though. after copying it all to my policy file it bricked my wordpress login page. so i had to revert back using ftp access to my server to find the problem..... again.

Language en
Alexander Dobernig2020年11月21日
1

No CSP detected on any webpage.

Language en
0 helpful · 1 not helpful
Leigh Silverstein2020年8月24日
1

It doesn't detect meta CSPs which should have been stated in the extension details.

Language en
5 helpful · 3 not helpful