The court is really saying that the url isn't even metadata, and I agree with that finding. The url is itself content. It's a request for content. On static pages it exposes the entire content of the communication.
I don't think the court would have a problem with the police discovering you buy weed because you call a weed dealer every week.
But this URL isn't just telling them who you are "calling" / httping with, but what exactly it was about.
I think the internet equivalent to phone number is the IP address.
SEO URLs usually contain a summary of the content of the page. The URLs are literally content. You can plug the URL into the browser and get all the content the person has looked at.
I don't think the court would have a problem with the police discovering you buy weed because you call a weed dealer every week.
But this URL isn't just telling them who you are "calling" / httping with, but what exactly it was about.
I think the internet equivalent to phone number is the IP address.