C++ library (windows/linux/osx) to work with SSL
Qualys SSL Labs: https://www.ssllabs.com/

libssllabs communicates with SSLLabs via API
official documentation: https://github.com/ssllabs/ssllabs-scan/blob/stable/ssllabs-api-docs.md

Need CMake 3.21+ and libcurl development headers:

apt-get install cmake libcurl4-openssl-dev

Initialize the RapidJSON submodule before configuring:

git submodule update --init --recursive

cmake -S . -B build -DSSLLABS_BUILD_TESTS=ON -DSSLLABS_BUILD_TOOLS=ON
cmake --build build --parallel
ctest --test-dir build --output-on-failure

Pull requests now run the same ctest suite in GitHub Actions.