HTML Control
The first condition for the website visitor to see the right things in the right places on the screen is error free coding. This can determined with W3C HTML.
REVIEWTest Tools
Regular testing is important as having complete and error-free search engine optimization will provide visitors with better browsing experience on the website.
Regular site testing with testing tools is required to ensure websites are working properly. You can check whether or not SEO standards are being complied with through site speed and website performance measurement.
Testing the performance of the website with test tools, taking into account many different factors, ensures that the deficiencies of the site are eliminated in every aspect. HTML and CSS control in the code section is important so that the site does not have a display problem. Tests such as link check, mobile site speed test and website speed test with Google PageSpeed are also necessary to ensure that users have a good website experience.
References : https://ilgi.li/tr/blog/...
CSS Control
Error-free website design is necessary for the correct presentation of the content to visitors. Correctness and consistency can be checked with the W3C CSS.
REVIEW
Link Control
It is necessary to make sure that all links on the website are working correctly. With W3C Link Checker all links of the website are scanned and reported quick.
REVIEWPerformance Test
With the Google PageSpeed test, the speed and average performance of web pages can be seen for 6 different situations.
REVIEWMobile Speed Test
Continuous increase in mobile usage keeps developers focused on mobile speed because websites that open slower than 2,5 sec lose more than half of visitors.
REVIEW