Distil Networks, a start-up with offices in Arlington, Virginia and San Francisco, raised $21 million in Series B funding for its bot detection and mitigation solution.
Distil helps to defend websites against malicious bots used for web scraping, brute force attacks, competitive data mining, account hijacking, unauthorized vulnerability scans, spam, man-in-the-middle attacks and click fraud.
Its unique approach monitors every single Web request and builds a signature, or fingerprint, of every incoming connection, allowing the company to accurately detect, flag and block that unique fingerprint for all other sites under Distil’s protection.
By having blocked more than 50 billion bad bots to date, Distil said it has amassed the largest known database of malicious bots.
The funding round was led by new investor Bessemer Venture Partners (BVP), with participation from current investors Foundry, TechStars, ff Venture Capital, Idea Fund and Correlation Ventures.
