Nerine
Nerine is a static web application testing tool. You write a script that defines the request to send and the response you expect back. Nerine sends the request and logs anything that does not match. Each test case can modify the request, compare the response to what you expect, and extract values from the response for the test cases that follow. Point Nerine at a directory of scripts and it runs all of them. Nerine was built for web application regression testing in CI/CD pipelines, and the same scripts work for uptime monitoring and for watching security headers and .well-known/security.txt for changes.
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