Reasonable title . description . keywords : The weights of the three items are reduced one by one in the search,
The title value is enough to emphasize the key points, important keywords should not appear more than 2 times, and should be placed in the front, and the title of different pages should be different;
The description highly summarizes the content of the page, the length is appropriate, and keywords cannot be piled up too much. The description of different pages is different;
keywords list important keywords
Semantic HTML code conforms to W3C specification: Semantic code makes it easy for search engines to understand web pages.
Put the HTML code of important content at the top: search engines crawl HTML from top to bottom, and some search engines have restrictions on the length of crawling to ensure that important content will be crawled.
Do not use js output for important content: crawlers will not execute js to obtain content Use
less iframe : search engines will not crawl the content in iframe
Non-decorative pictures must add alt
to improve website speed: website speed is an important index for search engine ranking