The document discusses signs that a website may not be performing well. It lists several potential issues: 1) Low conversion rates, especially below 0.1%, indicate users are not taking desired actions on the site. 2) Errors shown in Google Webmaster Tools, such as crawl errors or malware, suggest issues that could hurt search engine optimization. 3) Site speed being over 4 seconds to load is too slow and could cause Google to give lower rankings. 4) An outdated WordPress installation is a security risk and prevents the site from keeping up with current technology.