related to #12248

While checking how the SEO plugin works, I noticed that it parses this url:

But it seems like this API doesn't exist anymore (besides the fact that sending the urls via HTTP to other servers isn't a good idea)

http://data.alexa.com/data?cli=10&url=matomo.org
only returns Okay for me and it seems like I am not the only one:
https://stackoverflow.com/questions/3676376/fetching-alexa-data#comment87619041_6224304