HTML tags are the most important part of SEO. These are some of the HTML tags that are as follows.-
Title tag:- This is an important HTML tag. If somebody searches any query in a search engine and the keywords in the query match with your title tag then your website will come in the higher ranking in SERPs. So this tag should be optimized with proper keywords. The length of the title tag is around 50–60 characters including spaces. If you exceed more than the limit then the user does not properly see your title.
Description tag:- The description tag is also the second important part of the HTML tag. The description tag describes what your page is all about. This tag is also optimized with keywords. The length of the description tag is around 150–160 characters including spaces.
Heading tag:- This tag is important as per SEO guidelines. This tag describes what the page is all about. This tag is also optimized with keywords. It should be arranged your content according to sequence and not disturbed the sequence. It means you should be arranged like that H1, H2, H3, and so on.
Image tag:- The image can not be read by the crawler but words in the alt tag are read by the crawler. The image tag should be optimized with keywords. Their pixel should also optimized according to the website other wise image is not shown on your website.
These are the important and simple HTML tags for SEO