|Type of business||Private|
|Headquarters||Bath, United Kingdom|
|Key people||Mike Prettejohn, Director|
Internet Data Mining
PCI Security Scanning & Web Application Security Testing
Netcraft is a provider of cybercrime disruption services across a wide range of industries. In November 2016, the Chancellor of the Exchequer announced plans for the UK government to work with Netcraft to develop better automatic defences to reduce the impact of cyber-attacks affecting the UK.
Netcraft provides web server and web hosting market-share analysis, including web server and operating system detection. In some cases, depending on the queried server's operating system, their service is able to monitor uptimes; uptime performance monitoring is a commonly used factor in determining the reliability of a web hosting provider. Netcraft has explored the internet since 1995 and is a respected authority on the market share of web servers, operating systems, hosting providers, ISPs, encrypted transactions, electronic commerce, scripting languages and content technologies on the internet.
The company is also known for its free anti-phishing toolbar for the Firefox, Internet Explorer, and Chrome browsers. Starting with version 9.5, the built-in anti-phishing filter in the Opera browser uses the same data as Netcraft's toolbar, eliminating the need for a separately installed toolbar. A study commissioned by Microsoft concluded that Netcraft's toolbar was among the most effective tools to combat phishing on the Internet, although this has since been superseded by Microsoft's own Internet Explorer 7 with Microsoft Phishing Filter, possibly as a result of licensing Netcraft's data. The service can only process public IPv4 servers at the exclusion of IPv6. The browser extensions will display security information for a domain's IPv4 servers even when the user is connected to a different server over IPv6.
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