this article mainly discusses the reasons why the website ranking suddenly disappears and the solutions for different situations. the author mentioned the problem of website connectivity rate and pointed out that a problem with the connection rate may cause the website ranking to disappear. the solution is to ensure that the website opens normally and wait for a period of time to recover naturally. the author analyzed that the website’s revision may cause the ranking to disappear, but it will gradually recover as the revision is completed. third, the author emphasized that the website’s downgraded power by search engines may be due to violations.