Velen is a crawler written in Go for Hunter. It analyzes millions of public internet pages every month. We only crawl pages that are publicly accessible. Any page behind a login or any other authentication won\'t be crawled. Our goal with this crawler is to build business datasets and machine learning models to better understand the web.
The BLEXBot crawler is an automated robot that visits pages to examine and analyse the content, in this sense it is similar to the robots used by the major search engine companies. The BLEXBot crawler is identified by having a user-agent of the following form: Mozilla/5.0 (compatible; BLEXBot/1.0; +http://webmeup-crawler.com/)