Every person who makes a website cares a lot about how their site performs in search engines. Especially those who do SEO, they basically check the site's收录 (indexing) situation and keyword rankings everyday. Maintaining the search engine's indexing volume of the website, keeping and improving the ranking of the website's keywords are the goals of many webmasters, and they adopt various measures or seek help everywhere for these goals.
In fact, we all know that any data in the search engine is changing. The increase or decrease of inclusion, or the rise and fall of rankings are all normal things. Excessive worry and attention are unnecessary. But as a webmaster, we can work on the website itself, reducing factors that search engines consider unsuitable or might penalize the site. After eliminating these potential problems that affect the site's ranking and inclusion, how the search engine changes is beyond your control. And at that point, your rankings and inclusion probably won't fluctuate too much either.