Server Log

A server log is the raw record of every request the server received — with URL, time, status code and user agent — recorded independently of any script running in the browser.

A server log and browser analytics are two different eyes on one site, and their blind spots complement each other. The server log sees every request, even those that run no JavaScript: crawler bots, direct file downloads, and visits where the analytics script never loaded. It also has status codes and server errors that a browser script cannot see. By contrast, the server log does not know in-page user behavior — scrolling, clicks, real dwell time — because those never reach the server. A common trap is that because the server log counts “every request,” its numbers are larger than browser analytics, and comparing them directly is misleading; one counts human, browser-bearing visits and the other counts every request including bots and files. For crawl-SEO analysis and server errors, the server log is the reference; for user behavior, browser analytics.