Chrome Web Store
10Versions
1Code reviewed

No malware found

In code review (v1.16.7)

Our reviewer read version 1.16.7 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

What our analysis found

Netcraft Extension, used by 60,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can read and change data on all websites and can observe network requests. It comes from a trusted publisher and was last updated in February 2024.

The extension is a legitimate anti-phishing and malware blocker from Netcraft, a well-known security company. All permissions (<all_urls>, webRequest, webRequestBlocking, etc.) are essential for its stated purpose of scanning and blocking malicious URLs. All network requests go to Netcraft's own domains (,,), which are first-party and disclosed in the privacy policy. Data collection (web history, user activity, PII) is explicitly disclosed in the Chrome Web Store listing. No evidence of unauthorized data exfiltration, code injection, obfuscation, or third-party tracking was found. The ML model's low risk score (0.00) aligns with this clean review, while the third-party risk-score flagged permissions that are typical for security extensions.

Netcraft Extension

Netcraft Extension Chrome extension security report

ID: bmejphbfclcpmpohkggcjeibfilpamia

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
2.1.2
Size
0.75 MB
Rating
4.4/5
Reviews
164
Users
60,000
Type
Extension
Updated
Feb 27, 2024
Category
Privacy & security
Price
Free
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
3extensions
All still listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
Netcraft Ltd
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
Yes
Website
Visit
Extensions
3
Active
2
Obsolete
0
Listed
3
Unlisted
0
Users
66,287

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4

Install growth

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

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About this extension

Comprehensive site information and protection from phishing and malicious JavaScript when browsing the web

Read the publisher’s full description

The Netcraft Extension is a tool allowing easy lookup of information relating to the sites you visit and providing protection from phishing and malicious JavaScript. What's new in v2.1.2? • Improved caching of our feed to reduce network traffic. Key Features: • Protection against phishing sites — The Netcraft anti-phishing community is effectively a giant neighbourhood watch scheme, empowering the most alert and most expert members to defend everyone within the community. As soon as the first recipients of a phishing mail report it, we can block it for all users of the extension providing an additional level of protection from Phishing. Netcraft processes reports of fraudulent URLs from a diverse variety of sources and proactively searches for new fraudulent sites. • Protection against malicious JavaScript — Prevent your credit card details from being stolen by shopping site skimmers or your computer's processing power being harvested by web miners. Netcraft has been detecting shopping site skimmers, web miners, and other malicious JavaScript since 2017. The extension blocks sites that we have found to be compromised with malicious JavaScript. Additionally, it detects JavaScript that we have identified as being malicious, blocks pages that use it from loading, and automatically reports them to Netcraft to protect the rest of the community. • Detailed site reports – simply click the Netcraft logo to access a wealth of information about the sites you visit, helping you to make informed choices about their safety. • Conveniently report suspected phishing & fraudulent sites – At the click of the button you can report suspected web forgeries to Netcraft, helping to protect the community. Netcraft operates an incentive scheme for Phishing site submissions, including iPads, backpacks, mugs, and more… https://report.netcraft.com/pages/report-incentives Find out more about the Extension at: https://www.netcraft.com/apps-extensions/browser-extension/ About Netcraft: Netcraft is an Internet services company based in Bath, England. We provide a range of services relating to internet data analysis, defences against fraud and phishing, web application security testing, and automated network scanning. In particular, Netcraft’s anti-phishing services are very widely licensed, ultimately protecting hundreds of millions of people. https://www.netcraft.com Privacy Policy: https://www.netcraft.com/privacy/

User reviews

Extension files

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URLs
26
IPv4
3

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

No URLs found
No IP addresses found

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Version
Size
Verdict
Findings
Permhash
2.1.1
Latest
0.72 MBNot scanned—
14d0a1c98c533a841d2bcd8eb92e609eb6fe4516366c50f92b246b87d39e8b42
1.18.1
0.71 MBNot scanned—
5cfc45d475be9fe0c8055805642b35cf917f7ca79f4aae0fdc5ec2b7dd838ab1
1.18.0
0.71 MBNot scanned—
5cfc45d475be9fe0c8055805642b35cf917f7ca79f4aae0fdc5ec2b7dd838ab1
1.17.0
0.77 MBNot scanned—
5cfc45d475be9fe0c8055805642b35cf917f7ca79f4aae0fdc5ec2b7dd838ab1
1.16.10
0.77 MBNot scanned—
5cfc45d475be9fe0c8055805642b35cf917f7ca79f4aae0fdc5ec2b7dd838ab1
1.16.7
0.76 MBNo malware found0
5cfc45d475be9fe0c8055805642b35cf917f7ca79f4aae0fdc5ec2b7dd838ab1
1.16.6
0.77 MBNot scanned—
5cfc45d475be9fe0c8055805642b35cf917f7ca79f4aae0fdc5ec2b7dd838ab1
1.16.5
0.73 MBNot scanned—
3265e89a8aea39d1df3f5e4292c72be6554fce6f9891ff5b667170425c87661f
1.16.4
0.73 MBNot scanned—
3265e89a8aea39d1df3f5e4292c72be6554fce6f9891ff5b667170425c87661f
2.1.2
0.75 MBNot scanned—
14d0a1c98c533a841d2bcd8eb92e609eb6fe4516366c50f92b246b87d39e8b42
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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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