Technical SEO are SEO applications that cover hundreds of criteria where sites are examined in software. It covers software issues such as url structures, canonical link structures, and robots codes, and SEO criteria addressed to contextual and design issues such as heading tags, alt tags, and keyword densities. The most important ranking factors in terms of SEO are gathered under Technical SEO. For this reason, success should not be expected in a technically problematic site. You can do technical SEO reviews manually through a checklist, or you can perform analyzes more smoothly and more thoroughly through various tools.