Is Page Ruler Safe? — Extension Safety Profile
Quick verdict: Page Ruler earns a safety grade A, 83.6 out of 100, based on 5 of 5 dimensions.
83.6/100
Grade A · 5 of 5 checks
What we found
Automated safety profile from public signals (the extension's manifest & permissions, store listing, publisher, privacy policy). A full review hasn't been published yet.
What this safety grade means
Page Ruler earns a safety grade of A (83.6/100), measured across 5 of 5 dimensions. Its strongest area is Maintenance & Ownership (100%). The weakest is Publisher & Identity (60%) — what holds its grade back the most.
On the public records we can check, Page Ruler comes through cleanly. 500,000 active users/installs reported on the store. Store rating 3.9/5 from 101 user ratings. Last updated on the store 2026-04-04. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Page Ruler's own store listing and privacy policy before installing, and weigh it against the other browser extensions we track below.
Safety Signals
Based on 5 of 5 safety dimensions
| Dimension | Score | Bar | Source |
|---|---|---|---|
| Publisher & Identity | 60% · 4.8/8 pts | Automated signals | |
| Permissions & Access | 90% · 22.5/25 pts | Automated signals | |
| Data & Privacy | 83% · 13.2/16 pts | Automated signals | |
| Maintenance & Ownership | 100% · 7.5/7.5 pts | Automated signals | |
| Community Reputation | 76% · 7.6/10 pts | Automated signals |
In-depth safety analysis
This extension requests the activeTab, scripting, and storage permissions. The activeTab permission allows it to read and modify the current page’s content only when you click the extension’s icon, which is a scoped and expected approach for a tool that needs to measure elements on a page. The scripting permission lets it inject its ruler overlay, and storage is used to save your settings locally. This permission set is normal for a page measurement utility and does not grant broad, always-on access to your browsing data.
For any general browser extension that can interact with page content, a careful user should consider the publisher’s reputation and update history. Even well-intentioned tools can become abandoned or, in rare cases, sold and repurposed. It is wise to review what an extension declares about data handling and to check if its developer has a verifiable track record, as the identity of a small or individual publisher can be harder to assess than that of a known organization.
Based on the fact sheet, this extension’s strongest dimension is Maintenance & Ownership, indicating a recent update and active versioning. Its weakest dimension is Publisher & Identity, which suggests limited publicly available information about the developer. This combination means the code itself appears well-maintained, but users have less context about who is behind it.
AI-assisted analysis of the documented signals above (permissions, store data, privacy practices) — explains what they mean and the risks typical for this category. Not a hands-on test.
What the store listing shows
Who's Behind Page Ruler?
- Publisher leocompson
Public records identify the publisher, but no individual founders or a separate registered company are named — which is what holds the Publisher & Identity score back. Less public information about who operates an extension means less you can verify about their long-term accountability.
How it compares
Among the 345 browser extensions we track, Page Ruler scores higher on safety than 79% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
Page Ruler FAQ
- Is Page Ruler safe?
- Page Ruler earns a safety grade of A (83.6/100) on our evidence-based assessment, based on 5 of 5 safety dimensions we could verify from public records. This is an automated profile built from public records, not a hands-on review.
- Who is behind Page Ruler?
- Page Ruler is operated by leocompson.
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