> For the complete documentation index, see [llms.txt](https://bogdanfinn.gitbook.io/open-source-oasis/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bogdanfinn.gitbook.io/open-source-oasis/further-information.md).

# Further Information

This library uses the following api: <https://tls.peet.ws/api/all> to verify the hashes and fingerprints for http2 and ja3. Be aware that also peets api does not show every extension/cipher a TLS client is using. Do not rely just on ja3 strings. The API does not include the GREASE Extenson into the ja3 string. It’s omitted on purpose. Always have a look at the extension list and not only on the ja3 string.

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If you appreciate my work feel free to [buy me a coffee](https://www.buymeacoffee.com/CaptainBarnius) or donate some money to charity.

### License

Since version 1.17.0 the tls-client, and with it the shared library, is licensed under the [BSD-3-Clause license](https://github.com/bogdanfinn/tls-client/blob/master/LICENSE). Before that it was under the BSD-4-Clause license; the advertising clause, which required an acknowledgement in all advertising materials, no longer applies.