← How we detect bots

Network, VPN, & Geolocation Evading Vectors

OS / TCP TTL Mismatch

One of 106 independent checks BotRefund uses to build a reliable picture of whether a visit is human or automated.

Normal user

What a real browser usually shows

A real visitor’s connection, location, language, and timing normally agree with one another. A browser on a home or mobile network may vary, but its signals still form a coherent picture.

Bot browser

What an automated browser often reveals

The OS / TCP TTL Mismatch check looks for a mismatch that a real browsing session does not normally create. Proxy rotation, location masking, or browser spoofing can make separate network facts disagree.

Why this matters

A single anomaly is not a bot verdict.

Privacy tools, travel, corporate networks, and unusual devices can produce unexpected behavior for genuine people. BotRefund keeps this signal as evidence—not a verdict—and cross-checks it against independent browser, network, device, and behavior data.

01

Independent evidence

This signal adds one objective fact about the visit.

02

Cross-checked context

BotRefund tests whether other signals support the same story.

03

AI prediction

Our model weighs the complete pattern instead of trusting a raw rule.

Why BotRefund is 99% accurate

Accuracy comes from corroboration, not one browser tell.

BotRefund sends this signal into our prediction AI, which evaluates the complete picture across browser, network, device, and behavior evidence. By seeing how all signals fit together, it identifies a visit as bot or human with 99% accuracy.

Add free bot protection to your website →