Netcraft SSL Server Survey and Netcraft Survey Agent are bots belonging tot website Netcraft. This company offers several services, among which is a public search engine. Other services are Anti-Phishing, Security Testing and Internet Data Mining. It is not transparent what these bots are doing and it is strange that Netcraft doesn?t provide web links in its user agents. SSL (Secure Sockets Layer) is a protocol that provides communications security over a computer network. Netcraft is one of the few bots that attempts to search through your mail.domain.com folder!
The Internet of Bots has evaluated Netcraft against 50 different checkpoints, of which 43 have been confirmed as being positive. These checkpoints evaluate the transparency and occurrence of a bot and don´t necessarily say something about its quality. The BotRank is calculated as [43*2=] 86%. The details of the bot and the BotRank can be seen below. For more information on how the BotRank is made, you can visit the page Botrank.