Server logs are easily faked. There&#x27;s a lot of mistrust in the industry (well-earned, due to many scams in the past). Third-party web analytics providers, implemented via plain-text JavaScript anybody can audit, are fair.<p>(That ignores of course that server logs are virtually useless for determining a user&#x27;s behavior on a single page app. It&#x27;s not the ONLY reason server logs aren&#x27;t used, but perhaps is the most important reason.)