From the article:
"Those ICRs in effect serve as a full list of every website that people have visited, rather than collecting which specific pages are visited or what's done on them."
And from another site on the same issue:
"When you visit a website you usually start at
the websites homepage such as
www.bigbrotherwatch.org.uk/ the
Government define this part of a website
address (the part before the first forward slash)
as communications data which they consider to
be non-intrusive information." (https://www.bigbrotherwatch.org.uk/wp-content/uploads/2016/0...)
In fairness the law mandates they record the domain, it doesn't say anything about capturing more it just sets a standard for the minimum.
Given that the ISP's have now been given cart blanche to collect data that is very commercially valuable I can see some of them doing it with the hope they can sell it later.
And from another site on the same issue: "When you visit a website you usually start at the websites homepage such as www.bigbrotherwatch.org.uk/ the Government define this part of a website address (the part before the first forward slash) as communications data which they consider to be non-intrusive information." (https://www.bigbrotherwatch.org.uk/wp-content/uploads/2016/0...)