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In principle, yes, I believe it is a form of spying. Not particularly invasive nor harmful, but spying nonetheless. Logging every page visited is not a technic

• vlovich123 6mo ago
  > Logging every page visited is not a technical requirement of serving the requested resource. How will you know which page is having problems being served or is having performance problems?
  • nkrisc 6mo ago
    You won’t, but that’s not what was asked. Logging the requested resource is not a technical requirement of serving that resource.
    • vlovich123 6mo ago
      Depends how you define “technical requirement” but I’d say 404 for example is an indication of a failure to serve a given resource. If you don’t have logging you won’t know unless someone complains which means you’ll only catch the most visible issues. Same goes for performance - everywhere I’ve ever worked serving a resource was tightly coupled to “how fast can the user retrieve that resource”.
• DrScientist 6mo ago
  But it's just tracking something the server was asked to do - I'd say it's legitimate logging. If you buy something at the supermarket, the supermarket keeps a record of the transaction - it's part of the process. However if you try and link that to entities and build a pattern behaviour across multiple websites then I think you stray into spying. Also if the tin of beans I bought at the supermarket records audio at home and uploads to the cloud - that's spying.