1. The shorter the URL the better
This principle is based on the user experience, not on search engines. Because, for search engines, as long as the URL does not exceed 1000 letters, included are no problem. But, don't say 1000 is the hundreds of letter, I think the user seems to be very troublesome. There is a paragraph of the URL is more conducive to memory and transmission, very long URLs may be incomplete replication and lead to inaccessible.
2, the less the directory level the better
The directory here, of course, refers to the physical directory structure. In theory, it is best to put it in the root directory, but in practical terms, it is extremely inconvenient to manage, and once a large number of search engines can not understand the ownership of the relationship from the directory level.
3. Fewer parameters, better
Generally from the SEO point of view are recommended to use static URLs, but if not implemented, it is necessary to minimize the pass parameters, generally recommended for 2~3 parameters. The more parameters, the more detrimental to the inclusion.
4, all lowercase letters
The usual URLs are alphabetical, and you need to pay attention to using lowercase letters as much as possible. because: ⑴, lowercase letters easy to enter; ⑵, some servers are case-sensitive, such as Linux servers; ⑶, the file code is case-sensitive, and a slight error can cause the entire directory to not be included.
5, the URL contains keywords
Many SEO researchers have summed up, the keyword appears in the URL can improve the relevance of the page, of course, the ranking also has a certain impact. A key descriptive URL search engine will give a certain weight.
6, the conjunction uses the segment horizontal line (-) to divide
Underlining or other characters is not recommended because the search engine treats the dash as a space and the underscore is ignored.
There is also a point that is often brought up by seoer, that is, directory form or file form. In fact, the impact of both formats on the rankings is minimal, do not care too much. The form of the directory is a bit of the future if the site changes the programming language, the URL can be unchanged. Of course, if you can generate. html, there is no difference.