Is Speed Test Safe? — Extension Safety Profile
Quick verdict: Speed Test earns a safety grade B, 69.2 out of 100, based on 5 of 5 dimensions.
69.2/100
Grade B · 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
Speed Test earns a safety grade of B (69.2/100), measured across 5 of 5 dimensions. Its strongest area is Maintenance & Ownership (85%). The weakest is Permissions & Access (58%) — what holds its grade back the most.
On the public records we can check, Speed Test looks broadly trustworthy. 20,000 active users/installs reported on the store. Store rating 4.7/5 from 121 user ratings. Last updated on the store 2026-01-29. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Speed Test'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 | 58% · 14.6/25 pts | Automated signals | |
| Data & Privacy | 75% · 12/16 pts | Automated signals | |
| Maintenance & Ownership | 85% · 6.4/7.5 pts | Automated signals | |
| Community Reputation | 83% · 8.3/10 pts | Automated signals |
In-depth safety analysis
This extension requests the host permission, which combined with the "scripting" API, allows it to read and modify data on any website you visit. It also can access and manage open tabs. While an internet speed test tool needs to connect to specific test servers, requesting access to all websites is a broader permission than its core function typically requires and introduces additional risk.
General browser extensions with such broad access can become targets for supply-chain attacks or be sold to new owners who may change data practices, potentially exposing all your browsing activity. A careful user should consider whether a speed test needs to see content on their banking, email, or shopping sites. The developer states they collect "Website content," which, with full host access, could encompass the pages you view.
The fact sheet shows this extension is well-maintained and has strong community reputation, reflected in its highest score for Maintenance & Ownership. However, the lowest score is for Permissions & Access, indicating that the scope of requested capabilities is the primary point of caution when compared to its intended purpose.
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 Speed Test?
- Publisher openspeedcheck.com
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, Speed Test scores higher on safety than 17% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
Speed Test FAQ
- Is Speed Test safe?
- Speed Test earns a safety grade of B (69.2/100) 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 Speed Test?
- Speed Test is operated by openspeedcheck.com.
Browse all browser extensions we've checked →