Technical SEO refers to the process of optimizing a website's technical aspects to improve its search engine ranking and visibility. It involves a range of techniques and strategies, including website structure, page speed, mobile responsiveness, and more.

One key aspect of technical SEO is website crawl ability, which refers to the ability of search engines to access and index a website's pages. This can be improved by optimizing the website structure, using appropriate HTML tags, and creating a sitemap.

Another important factor is page speed, which not only affects user experience but also searches engine ranking. To improve page speed, technical SEO specialists may optimize images, reduce server response time, and minify CSS and JavaScript files.

Mobile responsiveness is also crucial, as more and more users access the internet through mobile devices. Technical SEO strategies to improve mobile responsiveness may include using responsive design, optimizing images for mobile, and improving mobile page speed.

Overall, technical SEO is essential for improving a website's search engine ranking and visibility and should be an integral part of any comprehensive SEO strategy.