What does website downgrade mean?

The downgrade of a website generally means that the website's score in the search engine is lowered, and it can also be regarded as a website being punished by the search engine. So how will the website be downgraded? 
Under normal circumstances, the use of search engine defects and malicious rankings by unnatural methods will cause the search engine to display abnormal ranking results and reduce user experience. 
There are generally 3 types of downgrades: slight downgrades, big downgrades, and K station. The generation of these three forms of demotion is determined by the severity of website violations or black hat tactics. "Mild fines, severe heavy fines, and extremely severe death" are the punishment methods for malicious rankings by search engines. 
The features of website downgrade: 
1. Reduction in 
indexing 2. Reduction in ranking, depending on the degree of downgrade, a slight downgrade fluctuates slightly, a large downgrade fluctuates greatly, and K station is heavily downgraded. 
3. Snapshot update is reduced or stopped 
4. SITE is not on the home page, this can only be said to be a form of expression, not necessarily the site is not on the home page, it must be downgraded. 
5. Baidu search website title, if the website is not in the first place. There may be some other reactions, but these are the main ones. If the above-mentioned series of phenomena occur on your website, it is recommended to investigate the entire website and make an evaluation after comprehensive analysis. 
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