Hi @user_5359, I've replaced these tags with their "source_ref" alternative, following the respective wiki, which says it's used for external source URLs, and "source" is for plain text only.
Now I see that there are only 10 "source_ref:internet_access" files, and the link no longer works properly. They can be removed completely or corrected with a proper tag.
In any case, I will try to survey it again in situ to corroborate its existence.
Greetings.