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Url static why static (i)
The vast majority of sites are now database-driven, and pages are generated in real time by the program, rather than actually having a static HTML file on the server. When a user visits a web site, the program uses database data according to the parameters in the url to generate page content in real time. So the original status of the url corresponding to the dynamic page is also dynamic and contains questions, equals and parameters, which are the urls of this typical forum as follows:
Http://www. Domain. Com/viewread. Php? Tid=70376&extra=page=l
In the early stages of development, search engines were generally reluctant to climb and record dynamic urls, mainly because of the potential for infinity cycles or the large volume of duplicate content, which resulted in a great waste of resources. The most typical limitless cycle is the lifetimes that appear on some websites, many blogs are archived over time, some hotels, flight search sites are often in the form of 10,000 calendars, and the search engine spiders encounter 10,000 calendars, and if they keep tracking the links, they can click on the following month, year, year, year, year, year, year, year. Real users can see it as a calendar at first sight, but the search engine spiders are facing just a string of codes that do not necessarily judge it as a million years。
Sometimes, even if there is no limitless cycle, dynamic urls can result in a large number of duplicate pages. For example, url:
Http://www. Domain. Com/product. Php? Colned&cabshoes&id=12345 and url:
Http://www. Domain. Com/product. Php? Cat-phoes&color=red&id=12345 and url:
Http://www. Domain. Com/product. Php? Color=red&idii123 4 5 &catiihoos
It's probably exactly the same. It's all red shoes with model 12345. The different order of parameters in urls is a different web site, but the same parameters are called, so the page content is the same. If the cms system is not well designed, these urls may appear on the website。
Even more troublesome is that sometimes some parameters can be random values, and servers can return to the page normally, although the content is identical or very similar. The former search engine is therefore far removed from the dynamic url, and the station manager needs to convert the dynamic url into a static url if the web page is to be fully captured。
