The history of SEO

Regarding SEO, the rigorous definition is as follows: SEO refers to the internal and external adjustment and optimization of a website on the basis of understanding the natural ranking mechanism of search engines, improving the natural ranking of keywords in search engines, and obtaining more display. To attract more target customers to click to visit the website, so as to achieve the goal of Internet marketing and brand building. Search engine retrieval principles are constantly changing, and changes in retrieval principles will directly lead to changes in the ranking of website keywords on search engines, so search engine optimization is not done once and for all.
At the level of awareness, webmasters can vividly understand SEO as: when a user enters a search engine, it is like entering a huge library. Then there are a lot of categories in this library. The categories are divided into large categories (can be understood as bookshelves), small categories (can be understood as the grid on the bookshelves) and specific to the smallest categories (book content) - long tail keywords .
In the library, new content is added every day, so the appearance of a new website is equivalent to the appearance of a new book in a category. Then the title and order in the book correspond to the TITLE and Description of the website. However, if "others" (can refer to search engines) find this book when they enter the library and go to the library, although it is a book in this category or a series, the title of this book is the same as the title of some previous books. Exactly the same, then it will definitely make readers misunderstand that the webmasters are plagiarizing other people's books, so the originality will affect the ranking of webmasters. So although the website of the webmasters is new, in fact, it is impossible for the webmasters to have a good ranking at the beginning. This seriously affects future optimizations.
Website optimization can help webmasters to improve the comprehensive index of their web pages. If webmasters’ links have been improved and they continue to increase the number of high-quality backlinks and maintain content, their left-hand rankings will continue to be maintained or improved. . Unless the later application of the fake method is punished or the later maintenance is stopped. And if the auction advertisement is stopped, the website link will disappear immediately.
The real face of a thing is misunderstood by more and more people, which leads to vague understanding. Can people still see its real face? No! Therefore, SEO needs innovation, and must first overthrow the previous "outdated habits". The characteristics of SEO are given by the times, and they are constantly improving in theory.
　　The main work of search engine optimization is to correlate web page content by understanding how various search engines crawl Internet pages, how website
optimization is indexed, and how to determine its ranking of search results for a specific keyword. Optimization to make it in line with user browsing habits, improve search engine rankings without compromising user experience, thereby increasing website traffic, and ultimately improving the website's sales or publicity capabilities. There are a lot of tutorials on this online now, but many are outdated because the Internet is constantly changing. Now is the Internet era, all walks of life want to occupy a certain market on the Internet, so if you want to occupy the Internet market, you must first allow netizens to see information on the Internet. At this time, a website is needed as a carrier so that users can find our website on the Internet. So how can we get more users to see it? Is it necessary to allow users to search for a keyword on Baidu and display it on the home page of Baidu search results? So how can our website be displayed on the Baidu home page? At this time, you need to use seo website optimization and ranking technology. Of course, don't think that seo is simply to rank your website. More importantly, it can make your website have conversion and success[1] benefit. This is the perfect demonstration of the core technology of seo. More than 95% of search engine users will give priority to the regular results given by search engines, and most of them will only browse the ads on the right when they cannot get satisfactory results on the left. According to the survey, 87% of netizens will use search engine services to find the information they need, and nearly 70% of them will directly find the information they need on the first page of the natural ranking of the search results. Auction advertisements have limited display positions, and as a result of the auction, a large number of customers cannot be ranked on the homepage due to price, making it difficult for these customers to obtain good results through auction advertisements.











Development Chronology
In 2000, the Pay-per-click search engine advertising model (referred to as PPC) appeared.
In 2001, some categories (Chinese) began to charge for login, and each website had to pay hundreds of yuan to thousands of yuan every year.
In 2002, some people in China got involved in the field of SEO one after another.
In 2003, content-based search engine advertising (Google AdSense) appeared.
In 2004, the latent SEO in China began to surface, and the SEO team gradually grew. The SEO market is in a state of chaos, illegal operations, and vicious competition. Most SEO optimization adopts individual workshop operation, and the company operates on a small scale. The SEO training market was born.
In 2006, with the fierce competition in the Internet market, enterprises have a new understanding of what Internet companies do and Internet products, and enterprises begin to treat the Internet marketing market rationally. With the prevalence of Baidu bidding, enterprises also realize the importance of search engines. , but also accompanied by the birth of many SEO service companies.
In 2007, with the popularization of SEO information and the rise of Internet company technology, some companies launched pay-for-effect SEO service projects, from website construction, to keyword positioning, to full-service search engine optimization, and overall SEM network marketing. Program launch and implementation.
In 2008, as the technology and concept of SEO service companies gradually matured, some companies launched website planning services. The service aims at efficient website construction (more emphasis on website user experience) and website user conversion rate, and pays more attention to marketing effectiveness.
In 2009, SEO entered the incandescent stage of development. Whether individuals, teams, companies or training institutions, all vigorously publicize and use SEO technology to operate websites, so that the keywords of the website can be ranked and included faster.
In 2012, the SEO industry entered adjustment, the original service model has been difficult to achieve a win-win situation, many companies have reduced their scale, and some companies have begun to seek new service models.
On February 15, 2012, when Baidu searched for SEO-related words, "Baidu reminds you: do not believe in the rhetoric and cases of SEO companies. Improper SEO may cause risks to your site. It is recommended that webmasters conduct SEO on their sites. Before, refer to reading Baidu's official website optimization guide." This move is considered an important move by Baidu to combat SEO.
On March 8, 2012, when searching for words related to SEO, "Baidu reminds you: SEO is a very important job, please refer to Baidu's suggestions on SEO." This move is considered to be made by Baidu under pressure A compromise, possibly in order to avoid the evasion of similar industry monopoly behavior, recognize the existence of SEO and suppress the development of SEO in disguise.
In May 2012, Baidu launched the Baidu webmaster platform, and the webmaster platform released the "Web2.0 Anti-Spam Detailed Guide" and "Well-known Site SEO Notes", and put forward some valuable suggestions for the reasonable optimization of the site.
In June 2012, Baidu updated its counter-strategy, and large-scale websites were K. Baidu claimed that "measures against low-quality sites have come into effect", which led to the website owners jointly launching a large-scale click on Baidu bidding event! Because of this incident, it was directly victimized and victimized. The biggest is medical bidding.
On October 23, 2012, Baidu's anti-algorithm was upgraded to crack down on the form of website hyperlinks and the behavior of buying and selling links. However, according to the actual investigation, it was found that the phenomenon that the real participating website was K caused by this upgrade was very small.
From November to December 2012, Baidu webmaster platform launched a series of webmaster tools (search keywords, Baidu index volume, external link analysis, website revision, etc.), and the third-party webmaster tools were strongly impacted.
On February 19, 2013, the Baidu web search counter team proposed the Luluo algorithm to combat various hyperchain intermediaries.
On March 19, 2013, the beta version of the external chain tool was refused to be fully open for use.
On April 25, 2013, the article "Talking about External Chain Judgment" was published in the webmaster community, which aroused the close attention of the SEO industry.
On the afternoon of May 17, 2013, the Baidu web search counter team announced on the Baidu webmaster platform that a new algorithm "Pomegranate Algorithm" will be officially launched in one week. In the early stage of the new algorithm, it will focus on rectifying pages that contain a large number of bad advertisements that prevent users from browsing normally, especially the spam pages that pop up a large number of low-quality pop-up advertisements and obfuscate the main content of the page.
On July 1, 2013, Baidu Luluo Algorithm 2.0 Update Announcement, intensified efforts to filter the external links of soft articles, increased the punishment on target sites, appropriately punished the sites that published soft articles, and reduced their popularity in search engines. At the same time, the Baidu News Feed site will be cleared out of the News Feed. [2]
On July 19, 2013, Baidu Web Search Anti-Team issued a statement to crack down on a large number of high-priced acquisitions of second-level domain names or directory information, most of which were used. Severe penalties will be imposed, and the entire site will be directly blocked and cleaned up from Baidu News Feed.
Development Trend
At present , China's SEO market is still in the development stage, lacking a corresponding regulatory mechanism, and the market is relatively chaotic. In order to quickly improve the keyword ranking of the website, many people often use some means that may be used by search engines to quickly achieve the ranking effect. Such practices undoubtedly hinder the healthy development of the SEO market.
Future SEO market development trends
Pure SEO techniques and tracking changes in search engine algorithms are less and less meaningful.
SEO itself is less and less technical, but it relies more and more on the comprehensive ability and technology of relevant practitioners
. Judging from the current discussion on SEO on the Internet, it is basically the previous method. There are no secrets to SEO, the simpler the principle, the more practical, and the ultimate is the trick.


Compared with the domestic SEO industry, the initiative of the foreign SEO industry is basically in the hands of the white hat SEO. Whether it is the search engine itself, the website design company or the client, they all have a correct understanding of SEO. White hat SEOs may not necessarily reject black hat SEO and black hat SEO in private, and may even be secretly using black hat tactics. But basically, on the table, everyone is still advocating white hat SEO technology, so the atmosphere of the entire industry is relatively healthy. What is gratifying is that the current domestic SEO market environment is also constantly improving, and I believe that China's SEO market will further develop and grow in the near future.