Examination of log files is the study of the server log files to understand the crawl and the resulting traffic on the website generated by the search engine. Each of these log files has valuable information on which pages are being accessed by the search engine bots, how often they crawl, and if they encounter some errors. All of these help in revealing the technical SEO issues, such as crawl errors, dead links, and slow loading pages.

Through log file analysis, one is in a position to comprehensively know the crawl and the related traffic on the website. Each of these log files has valid points concerning which pages the search engine bots are getting access to, the frequency of crawling, and if any errors occur while doing so. All these help in revealing the technical SEO issues: crawl error, dead link, and slow loading pages.