The black hat seo is a subject of mandatory vigilance from seo, and operations tend to trigger irregular operations with significant side effects and serious direct k stations。
1. Hidden text
It hides the text shown on the end of the web page by using technical means such as css or juqery, but clicks on the mouse and selects the hand。
Commonly hidden colours, div hidden, java hidden, static page black chain code, css hidden link code; small font hidden, etc。
2. Ip transmission
Displays the appropriate content according to the user's ip address。
3. 3001 hijacking
Turn some pages directly to 301 to other pages。
4. Short-term domain name hijacking
Purchases fully matched domain names based on keywords that are searched by the user, and jumps to the site for optimization。
5. Keyword stacking
It is a multiplicity of keywords in critical operations such as early keywords, descriptions, titles, custom labels。
6. Mirror website
There are some technical means to create images of some of the good ranking sites, which are a means of cheating。
7. Link factory
Create sites like hao123 to navigate, and then conduct all flow operations。
8. Create multiple sub-domain names
Creates multiple sub-domain names and repeats the content of those domain names, and then rankings the key words for queries multiple times。
9. Massive title party content
Frequent operations with inconsistent titles and content to cheat traffic clicks。
10. Massive garbage links
A large number of garbage links were sent to competitors, thus allowing search engines to rank them. It's no longer working。
11. Hide links
For example, using some java codes, or similar codes like those in statistical tools, embedding links into web pages so that search engines can climb more links。
12. Link bait
For example, use some illegal and relevant information such as yellow to attract users to click links。
13. Station operation
A large number of site sites are created on the basis of a common website and are run in parallel. There is a risk that no operation is recommended。




