This is my personal fork of 13ft by wasi-master, which is itself a similar project to the famous paywall-bypassing service 12ft.
13ft helps detect paywalls on the internet by pretending to be GoogleBot (Google’s web crawler) and attempting to fetch the same content that Google does.
This fork overhauls the UI and adds fallback options for the Wayback Machine and Archive.is.
There's also an iOS Shortcut for this service that lets you quickly pass your currently active URL to my instance of 13ft. You can also modify it to work with your self-hosted instance.