Part of the internet since 1994
Netcraft is an internet services company based in the United Kingdom which provides internet security services, including cybercrime disruption, application security testing and automated vulnerability scanning.
We have explored the internet for a quarter of a century and are an authority on many aspects of the internet.

We provide services to internet infrastructure providers, financial services, and large enterprises in over fifty countries, as well as the British Government.
This includes three of the four most valuable companies, twelve of the top fifty banks, five of the top fifty governments by GDP, and six of the eight banks in the FTSE-350 index.
- 01 Netcraft begins performing countermeasures against shopping site skimmers
- 06 Netcraft contracts with British Government to "remove bad things" from British cyberspace
- 04 Netcraft begins automatically identifying, and performing countermeasures against, malicious Command and Control infrastructure
- 01 Netcraft starts first entirely automated countermeasures contract
- 03 Netcraft moves the Web Server Survey to the cloud
- 01 Netcraft begins sponsoring prizes at some of the UK's leading Computer Science departments
- 11 Netcraft conducts first Secure Server Survey
- 01 First vulnerability scanning services
- 10 Domain netcraft.com registered
Over the last 5 years, the service has taken down 3,729,404 campaign groups (5.8M URLs covering 2,019,550 IP addresses). We have halved the UK share of global phishing whilst significantly reducing the lifecycle of commodity cyber attacks. […] Our continued hope is that other nations, National CERTs, and other organisations employ similar services to amplify the effect of this work.
- National Cyber Security Centre, May 2022
Namecheap collaborates with Netcraft, a company we identified as a leader in identifying and disrupting cybercrime
- Richard Kirkendall, CEO, Namecheap, June 2021
Really clever, yet really simple […] The fact that the UK share of phishing actually went down from 5.5 to 2 per cent over the next three years is testament to its success.
- Ciaran Martin, Former Chief Executive, National Cyber Security Centre, December 2020
One of our most effective strategies so far has had a huge impact on phishing attacks. In March, the UK’s Global share of this pernicious activity fell below 2% for the first time. When we started in 2016 it was 5.4%. This is seriously strategic innovation. […] HMRC is an excellent case study. In 2016, it was the 16th most phished brand globally, accounting for 1.25 percent of global phishing [attacks]. Today it is ranked at 146th and accounts for less than 0.1 percent.
- Jeremy Fleming, Director, GCHQ, June 2019
As a consequence, we have reduced the median availability of a phishing site physically hosted in the UK from 26 hours to 3 hours, again giving them much less time to do harm. 76.8% of those were down in 24 hours, up from 47.3% before we started takedowns.
- Dr. Ian Levy, Technical Director, National Cyber Security Centre, February 2018
I'm actually a huge fan of @Netcraft's managed takedown service. They issue takedown requests for phishing sites, abusive email accounts, Google Voice numbers etc. It's shockingly efficient.
- Chad Loder, Founder, @Rapid7, November 2017
At the heart of the system is a feed provided by Netcraft, […] we've managed to cut the average time-to-live of phishing and malware sites substantially.
- SIDN, September 2017
Been testing the Netcraft toolbar, and it’s amazingly good at blocking phishing. They’re a threat intel provider, so this is a direct feed.
- @SwiftOnSecurity, March 2017
The strategy sets out how government will strengthen its own defences […] We will do this through working in partnership with industry - including companies such as the innovative SME Netcraft-to use automated defence techniques to reduce the impact of cyber-attacks.
- The Rt Hon Philip Hammond MP, Chancellor of the Exchequer, November 2016
The hacker mindset at its best, seeing a world of possibilities where an ordinary person would just follow instructions.
- Tim O'Reilly