Suppose we look at a web page from the perspective of a search engine spider. What problems do we encounter when crawling, indexing, and ranking? Website designs that solves these problems is search engine friendly.
Can search engine spiders find your web page?
In order for the search engine to find your home page, you must have an external link. After you find your home page, you must also find your deeper content page. It also requires you to have a good website structure, logical, maybe A flat, possibly a tree.
Generally recommended sites need to have a site map that lists all important sections and pages. If the site is large, the site map can be divided into several.
All pages of the website must start from the home page and follow the link, preferably within 3 or 4 clicks.
Can search engine spiders crawl web pages after finding a web page?
The URL of the web page must be craw label. If the web page is dynamically generated by the database, the URL is generally rewritten to be static, that is, the contents of the question mark parameters in the URL are removed, and the session ID is also removed. Technically, search engines can’t read such URLs, but to avoid getting into an infinite loop, search engine spiders usually have to stay away from such URLs.
And if your website is a whole flash, there is no way to read it. Although search engines are trying to read flash information, they have had little effect so far.
There is also a frame structure. When the website first appeared, the framework structure became popular, and there are still many websites in use. This is the enemy of search engine spiders.
Also, try to remove unnecessary things that search engines can’t read, like audio files, pictures, pop-ups, and more.
How do you refine useful information after a search engine spider crawls a web page?
Put keywords in the place where they should appear.
Check the web page for different operating systems, different browser compatibility. Check for compliance with the W3C standard.
This website can only be considered search engine friendly if the search engine can find all of your pages, crawl them and take out the relevant content.