The workers engaged in the SEO industry must have seen all kinds of tricks (this is beginner knowledge, experts please skip). Today's Xi'an SEO briefly summarizes Common negative SEO methods 。
What is negative SEO
Negative SEO It refers to pulling down a competitor's page through some methods, usually improper methods, when the ranking of your website cannot be improved. Sometimes the effect is similar to that of your own page.
The negative SEO mentioned here has nothing to do with the use of SEO to suppress the company's negative news (or the negative crisis public relations and reputation management on the search engine).
Common negative SEO methods include:
1. Attack target website
For example, the DDOS attack makes the search engine think that the website cannot be accessed. It's ok for a short time. More than one or two days later, search engines may not display this website page for the benefit of their users. After an attack, usually the search engine ranking can reply smoothly, but it will be a problem if you cannot access it within three days or two.
2. Make a lot of 404 errors
Create a large number of links to non-existent pages, resulting in a large number of 404 errors. Like duplicate content, 404 itself is a frequent occurrence. It is normal for pages to be deleted and other webmasters to write wrong URLs when linking, but a large number may also have negative effects on the overall quality of the website.
3. Create a lot of junk links for competitors
Punish the target website with the intention of making the search engine misjudge. External links are still an important part of the ranking algorithm of all search engines, but all search engines do not like unnatural links and fight against spam links. Google's Penguin algorithm and Baidu's Green Basket algorithm are all against links.
Typical junk links include group blog comments, forum comments, link farms, a large number of meaningless free blogs, etc. Even seemingly non junk links such as news releases, template copyright links, guest blogs, etc. are often considered unnatural.
Since spam links may cause websites to be punished, someone specially creates these spam links for competitors. Can search engines correctly judge that spam links are made by competitors? In most cases, there is no problem. Sometimes, there will be a miscarriage of justice. Otherwise, we will not develop tools to reject the external chain.
4. Create a lot of duplicate content
Massive plagiarism of website content, or even direct production of a large number of mirror websites, make search engines think that there is a large amount of copied content in the target website.
Generally speaking, duplicate content is not a reason to be punished. Duplicate content may appear inside the website due to technical reasons, and there will also be normal reprints outside the website. However, if all content of a website appears on other websites, the overall quality of the website may be affected.
Search Baidu or Google and you will see dozens of images of my blog. Of course, most of them are not for negative SEO, but for someone who has bought a domain name and has not put anything on it, they will mirror a website to try to play.
5. Hack into competitor websites
Some hands and feet are easy to find, such as hanging a horse or a black chain. The search results of websites that have been hung up are often marked. When visiting, the browser will prompt that there are risks. Baidu webmaster platform and Google Search Console are also likely to have notifications. It is linked to an ordinary black chain, and you can know it by looking at the website often.
The hidden content and hidden black chain can only be found by looking at the source code. Or search for "site: domain+high interest keywords". The more risky and rewarding the words are, the more people will cross the bottom line and become hackers. They often check their websites to see if there are color, hidden diseases, private servers, gambling and other content that should not appear.
To be more subtle, do a cloaking. The content you get from the website you visit is different from the content captured by the search engine. So even if you look at the source code, you may not see that the website is hacked. For example, what to do if the website you wrote the other day is hacked. At this time, you need to view the snapshot, or use the capture tool in the webmaster tool.
Modifying the robots file, prohibiting page fetching, or adding a noindex tag to the page can also make the website page disappear.
6. Waste diversion
Turn a large number of spam domain names and punished domain names to the target website. The punishment of search engine can be transferred. If a domain name is punished, it cannot simply register a new domain name. The content remains unchanged, and the old domain name is transferred to the new domain name. The punishment of the old domain name may be transferred to the new domain name, and the new domain name will be wasted and will not solve the problem. To solve the problem of being severely punished, we need to find out the cause of punishment and solve it first, rather than simply changing the domain name.
Transferring a domain name that has been punished to a competitor may also cause the search engine to misjudge and pass on the punishment. On the other hand, of course, if the search engine does not misjudge, it will make the competitor's domain names stronger.
So far, the summary of common negative SEO methods (do you have a hit?) has been finished. Do you feel that you have improved a little?
