Netcraft Extension


The Netcraft Extension in Google Chrome™ (Firefox version similar)


Download the Netcraft Extension

System requirements:
Firefox 45.0 or later on Windows, Mac or Linux
Google Chrome 26.0 or later on Windows, Mac or Linux
Opera 15.0 or later on Windows or Mac

Why use the Netcraft Extension?

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 against phishing attacks. Once the first recipients of a phishing mail have reported the target URL, it is blocked for community members as they subsequently access the URL. Widely disseminated attacks (people construct phishing attacks send literally millions of emails in the expectation that some will reach customers of the bank) simply mean that the phishing attack will be reported and blocked sooner.

Browse in Safety

Extension Key

The Netcraft Extension explained (Firefox and Google Chrome versions are similar)

Key features of the Netcraft Extension:

  1. Site Reports: Link to a detailed report about the site, helping you to make informed choices about their integrity.
  2. Risk Ratings: We evaluate the characteristics of the site and compare these against those depicted by fraudulent sites. The result is a simple visual summary displayed on the Extension. A lower risk rating is better as it indicates lower risk.
  3. Additional information about the site at a glance, including:
    • Country: The country where the site is hosted
    • First seen: The first Netcraft Web Server Survey this site was seen in
    • Site rank: The popularity of the site amongst Netcraft extension users.
    • Host: The name of the organisation hosting the site
    • PFS: Check if sites using SSL for encryption support Perfect Forward Secrecy (PFS). PFS ensures that if the private key of the site is compromised - for example by a court order, social engineering, an attack against the site, or cryptanalysis - your historical encrypted traffic remains safe.
    • SSLv3: Indicates whether the web server supports SSLv3, which could mean that a downgrade attack is possible.
  4. Report suspected phishing 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, and mugs.

The Netcraft Extensions also:

So download and try out the Extension now and protect yourself on the web.

Corporate Phishing Protection

Information about licencing a branded version of the Extension for your own organisation is also available. The list of phishing sites reported by the anti-phishing community is now available as a feed suitable for ISPs, hosting companies, enterprises, and other companies that operate mail servers and web proxies, or network monitoring systems.