Botd vs IPLogs

BotD is FingerprintJS's open-source, MIT-licensed JavaScript library that runs entirely in the browser to flag basic automation -- headless Chrome, PhantomJS, Selenium, and similar tools -- without any server round-trip for the detection itself. It ships as an npm package or as a CDN-hosted ES module and returns a plain detected/bot-kind result object from a single detect() call. It is free for any use with no signup; FingerprintJS separately sells a more sophisticated, paid, server-side Bot Detection API for teams that need those extra signals.

IPLogs scores an IP address's likelihood of being a VPN, proxy, Tor exit node, or datacenter host by combining 25+ signals -- ASN/PeeringDB classification, TCP/IP and TLS fingerprinting, RTT timing, and active probing -- into a single verdict and confidence score. A single keyless POST to /v1/check (optionally enriched with client-side signals like user-agent, timezone, and WebRTC IP) returns the verdict, a 0-1 risk score, and the matched signals with their weights, run by DigitalD.tech. There's no signup and no enforced rate limit today -- the public endpoint is explicitly fair-use, with dedicated deployments available on request for high-volume callers.