How does Google rank webpages?

The automatic sorting of Google search results depends on more than 100 factors, including our PageRank algorithm. For more information, see our technical overview page. In view of the nature of our business and the purpose of protecting the integrity of search results, the information about the ranking mechanism we disclose to the public is limited to this.
1. Basic information
The automatic sorting of Google search results depends on more than 100 factors, including our PageRank algorithm. For more information, see our technical overview page. In view of the nature of our business and the purpose of protecting the integrity of search results, the information about the ranking mechanism we disclose to the public is limited to this.
2. Why is the ranking of web pages always changing?
We update indexes about once a month. With the update of web database, our indexes will change constantly: we will find some new websites, and some websites will be eliminated, so the website ranking may change. Changes in the rankings of other websites will naturally affect your rankings. You can rest assured that Google will never artificially adjust the results to improve the ranking of a website. The sorting of Google search results is automatically determined by several factors, including the PageRank algorithm. For more information about this algorithm, see our technical overview page.
You may want to check whether the number of other websites connected to your website has changed. This is the most important factor in determining which websites Google will index, because our browser uses hyperlink to Capture webpages and jump from one webpage to another to find most webpages. To find a website connected to your website, use the Google link: tool.

3. My website has changed. How can I keep my ranking unchanged?
Unfortunately, when you migrate to a new website, we cannot manually change the website you listed.
However, you can still take some steps to ensure a smooth transition. To some extent, the information listed on Google depends on whether we can find you through links from other websites. To ensure your ranking, it is best to notify you of your address changes to other websites on your website. To search for a website connected to you, you can try to search by link. Enter "link: [your complete URL]" in the Google search box. Although using this method, you cannot find every webpage linked to you, but it can help you redirect the link to your website. (Please note: We do not provide link query services for all websites in the index, so we may not be able to generate any results for your website .) After a new website is enabled, you may want to place a permanent redirection on the original website (use the "301" code on the HTTP title ), inform visitors and search engines that your website has been migrated.
Finally, if your website is not listed in the search results for a period of time, this does not mean that you have deleted it from our index. Sometimes, during the transition period, we cannot find the website at the new address of the website. Make sure that other websites are connected to you. We can find you next time you crawl your website.