Is Similarweb - Website Traffic, AI Traffic & SEO Checker Safe? — Extension Safety Profile
Quick verdict: Similarweb - Website Traffic, AI Traffic & SEO Checker earns a safety grade B, 73.4 out of 100, based on 5 of 5 dimensions.
73.4/100
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
Similarweb - Website Traffic, AI Traffic & SEO Checker earns a safety grade of B (73.4/100), measured across 5 of 5 dimensions. Its strongest area is Community Reputation (100%). The weakest is Permissions & Access (52%) — what holds its grade back the most.
On the public records we can check, Similarweb - Website Traffic, AI Traffic & SEO Checker looks broadly trustworthy. 1,000,000 active users/installs reported on the store. Store rating 4.6/5 from 3,800 user ratings. Last updated on the store 2026-05-14. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Similarweb - Website Traffic, AI Traffic & SEO Checker'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 | 52% · 12.9/25 pts | Automated signals | |
| Data & Privacy | 85% · 13.6/16 pts | Automated signals | |
| Maintenance & Ownership | 100% · 7.5/7.5 pts | Automated signals | |
| Community Reputation | 100% · 10/10 pts | Automated signals |
In-depth safety analysis
This extension requests broad permissions, including access to all URLs and the ability to read and modify data on every website you visit. The scripting and webRequest permissions allow it to inject code and observe network requests, which is how it can analyze traffic and SEO data directly in your browser. While this level of access is typical for a tool that overlays analytics onto any page, it also means the extension can technically see everything you do online, including sensitive information entered on websites.
For any browser extension that collects web history and user activity, a careful user should consider how that data is handled. The developer states they collect personally identifiable information, location, and browsing activity, though they also declare this data is not sold or used for unrelated purposes. With analytics tools, the core function involves sending visited URLs back to a service, so it is wise to review the privacy policy to understand exactly what is logged and retained.
The strongest dimension in the fact sheet is Community Reputation, reflecting a high store rating and a large user base, which suggests general user satisfaction. The weakest dimension is Permissions & Access, highlighting the extensive host and API permissions that, while necessary for the extension's features, grant it significant visibility into your browsing.
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 Similarweb - Website Traffic, AI Traffic & SEO Checker?
- Publisher https://www.similarweb.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, Similarweb - Website Traffic, AI Traffic & SEO Checker scores higher on safety than 38% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
Similarweb - Website Traffic, AI Traffic & SEO Checker FAQ
- Is Similarweb - Website Traffic, AI Traffic & SEO Checker safe?
- Similarweb - Website Traffic, AI Traffic & SEO Checker earns a safety grade of B (73.4/100) 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 Similarweb - Website Traffic, AI Traffic & SEO Checker?
- Similarweb - Website Traffic, AI Traffic & SEO Checker is operated by https://www.similarweb.com/.
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