
Short URLs support so many domains.
Short Link API is a free URL Shorteners API that requires no API key, is served over HTTPS and has unconfirmed CORS support.
Details from github.com.

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A simple link obfuscator/shortener
The Short Link API is provided by FayasNoushad (github.com).
Yes. The Short Link API is listed in the URL Shorteners category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Short Link API requires no authentication, so you can start making requests without signing up.
CORS support for the Short Link API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Short Link API is served over HTTPS, so it's safe to use in production.