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Engineering deep dives, postmortems, and notes from the team behind scrapfly.io. Anti-bot teardowns, browser internals, distributed scraping at scale.
News
Your Browser Does Math Differently on Every OS, and Anti-Bot Systems Read the Bits scrapfly.dev
Math.tanh, every CSS trig function, and the Web Audio compressor all route through the host libm, so the rounding of a cosine betrays the OS a browser actually …
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Your Browser
CSS hyphens:auto uses a per-language dictionary, and macOS and Windows/Linux Chrome ship disjoint dictionary sets from two different engines. Which languages a …
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