Wappalyzer is a bot users can download on Github and is demonstrated on wappalyzer.com. Wappalyzer is a cross-platform utility that uncovers the technologies used on websites. Users can try this online on wappalyzer.com. When querying for a domain, Wappalyzer sums up the technologies this website uses. Since everyone can use Wappalyzer, it is not clear what is done with the data that is being collected when this crawler visits your domain.
The Internet of Bots has evaluated Wappalyzer against 50 different checkpoints, of which 25 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 [25*2=] 50%. 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.