Is Metric Spy Page Ruler safe to use?

Metric Spy Page Ruler has a risk level of MEDIUM with an overall risk score of 4.3/10. Our scan detected 14 security findings. This extension has some risks worth reviewing.

What permissions does Metric Spy Page Ruler request?

Metric Spy Page Ruler requests the following permissions: storage, alarms, scripting. It also requests host access to: .

What is Metric Spy Page Ruler's risk score?

Metric Spy Page Ruler has an overall risk score of 4.3/10 (MEDIUM). Breakdown: Permissions 7.0/10, Code 6.3/10, Combinations 0.0/10, CSP 3.1/10.

ExtSafe

Metric Spy Page RulerSecurity Analysis

Chromev1.0.3MV3February 18, 2026 at 11:51 AM

Use with caution

This extension requests significant permissions. It has 10K+ users, but review the findings below.

4.3MEDIUM

4.3 MEDIUMRaw: 4.8

This extension shows some risk signals that are common in legitimate extensions but worth reviewing. Check the details below.

Based on 4 permissions including high-risk ones, 12 code findings.

Trust Signals(3.3/10)

Users

10K

Rating

4.4(4 reviews)

Status

Featured

Permissions

7.0/10

Code

6.3/10

Combinations

0.0/10

Manifest/CSP

3.1/10

Permissions(4 analyzed)

Code Findings(9 patterns, 12 total)

Content Security Policy

No CSP Defined(1 issue)

MEDIUM

N/ANo CSP defined

This extension does not define a Content Security Policy. A CSP helps prevent XSS and code injection attacks.

Manifest Analysis(1 finding)

Resolved from __MSG_* i18n placeholders:

Name: Metric Spy Page Ruler

Description: Quickly Measure Elements on Web Pages with a Ruler Tool, Free Selection, and Convenient Keyboard Shortcuts.

MEDIUM

web_accessible_resources.matchesOverly broad match patterns

Web-accessible resources use <all_urls> or wildcard patterns, exposing resources to every website.

External Domains(1)

github.com

Indicators of Compromise

7 indicators of compromise found

File Statistics

Total Files

JS Files

653.9 KB

Total Size

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