Fingerprinting

Pick a preset and you're done. Or tweak the JSON, override one knob, feed in a raw JA3. Whatever the job needs.

In this section

• What is TLS Fingerprinting: a fast primer on JA3, JA4, akamai H2 hashes
• Presets: the full preset list and how to pick the right one
• JSON Preset Builder: describe_preset, mutate JSON, load_preset_from_json. The customization path you'll actually reach for
• Custom JA3: WithCustomFingerprint with a raw JA3 string
• Akamai Shorthand: H2 shorthand format, change one knob without rebuilding the whole preset
• Per-Resource Priority: RFC 7540 weights and RFC 9218 priority headers from Sec-Fetch-Dest