Alexa full Raiders (on)

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall

Alexa website was founded in April 1996, 1999 became a wholly owned subsidiary of the Amazon website. The Alexa website originally is a classification navigation website, also provides regarding the network the dynamic correlation data and the service, including the flow information, the analysis and so on. In the spring of 2002, the Alexa website cooperated with Google website and began to provide search service. So far after nearly 8 years of accumulation, Alexa site has formed a considerable network of online files, stored 3.5 billion web page URL (Uniform Resource Locator) connection, ranked the world's four major search engine first, has exceeded the Google, fast and Alta Vista, the total amount of data has 500,000 g, The average monthly increase in 30,000 g, all content 60 days updated.

Of course, the Alexa site to become famous or it provides the ranking of global websites. This ranking is measured by the number of clicks installed on millions of Alexa toolbar (Alexa toolbar) users per day. The first Alexa toolbar, released in 1997, is an IE browser plug-in that now has more than 10 million users. Only users download the Alexa toolbar, the user access to a Web site records can count as the amount of traffic. Alexa toolbar is a free search and navigation tools, not only to integrate the Google site search function, but also to provide information about the site, such as site traffic rankings and contact methods. The relevant links are provided to make it easier to browse the relevant pages. There is also a history page (Wayback) service, some like a snapshot of the function, mainly to provide a snapshot of the entire site in the past day, generally one months to choose a day. This allows netizens to have a general understanding of the development process of a website.

The Alexa site can also see the same more detailed information on the site rankings. Alexa site is another major feature of the network traffic ranking trend chart, there are 3 months, 6 months, a year and two years 4 time range, is by 3 days Web site traffic average ranking of a coordinate graph, looks like a stock of K, its rise and fall also affects the attention of many websites.

Alexa site ranking is through the Alexa toolbar user sampling. By using the Alexa toolbar, which is installed on more than 10 million computers around the world, Alexa provides a sample source of traffic rankings based on the world's largest Internet user base. Because the Alexa toolbar has Google's search function, but also to provide Chinese site rankings, so China's domestic users are also more, providing a relatively accurate ranking samples. At present, Google's Chinese users more and more, the same use of Alexa's Chinese users also gradually increased, so that Alexa site rankings more accurate. Analyzing the reading habits of these users is helpful in understanding the popularity of news sites. And because of comparability, you can compare the popularity of similar sites among netizens.

Of course, with nearly 600 million internet users worldwide and 87 million internet users in China, Alexa provides user samples may not be the most representative sample, this ranking reflects the Alexa toolbar user preferences. In general, the greater the number of visits, the higher the ranking, the more accurate the data. This ranking has important reference value before the more excellent rankings appear.

Since the Alexa site data analysis is in English version, it is necessary to understand the meaning of the key words:

Site Traffic Rankings (traffic rank), ranked by the number of visitors to the site and the geometric average of the amount of pages visited.

Number of visitors per million users (reach technologists users): The number of users per million Alexa tool bars who visit the site.

Site visitors rank (reach rank): Ranking according to the number of visitors.

Average Web page access (Page view per user): The average number of pages that each visitor browses to the site. One user browsing the same page more than once a day.

Page access rank (page views rank): The average number of pages visited.

To ensure the stability and accuracy of the data, the Alexa website also provides data for 1 weeks (1 week average) and 3 months (3 month average) and 3 monthly change ratios (3 months Changes).

Because of advertising, language and geography, cultural factors, Alexa toolbar in different countries. The global Alexa ranked 500 sites are mainly American, Korean and Chinese sites. South Korea's web site in the Alexa ranking reflects the penetration of South Korea's Internet, but also reflects the South Korean users installed Alexa toolbar is very high proportion.

Alexa website also has a very useful function, is to provide visitors to browse the similar web site information, which is helpful to analyze the browsing habits and preferences of visitors. Alexa Web site can also provide the speed level of the site, connected to the number of other sites on this site, the site published time and other data.

Full strategy Two: Alexa ranking mechanism

Such a large number of site addresses, so detailed data and statistics, established the Alexa website World Ranking Authority. Alexa's ranking is undoubtedly to hang many people closely related to the site's appetite. People will inevitably think: why do our websites come after them? How do you rank the front? How to improve the browsing rate of the website? Some people will ask: Is this ranked science? Is it fair? To this end, we need to understand the Alexa browsing rate statistics and ranking mechanism.

First, Alexa Browse rate statistics and ranking prerequisites

1, Alexa's website ranking is according to each specific website's browse rate ranking. The greater the browsing rate, the higher the ranking.

2, the browsing rate is defined on the domain site for statistics. For example: www.sina.com.cn, news.sina.com.cn and tech.sina.com.cn will be counted as the same Web site because they belong to the sina.com.cn domain. However, there are exceptions, such as personal homepage, if the system can automatically distinguish from the URL address, will be considered as separate sites.

3. Sites that provide the same content will be counted as the same site. For example, the Greater China Printing NET uses the www.cgan.com and www.cgan.org two domain names to publish the same content, then will be counted as the same website.

4. The amount of traffic included in statistics comes only from users using the Alexa toolbar (Alexa Toolbar). That is, only users download the Alexa toolbar and embed it in their browser. In this way, the user accesses a Web site, and the records they visit can count as the number of visits to the site. According to Alexa statistics, the user now uses the toolbar up to millions of.

5. The Alexa toolbar is only available under Windows operating systems and is used in Internet Explorer browsers, and access to other operating systems or browsers will not be counted.

6, encounter a security or encryption site, Alexa toolbar will automatically shut down, so those high safety factors of the site, Alexa will not be able to search and statistics rankings.

The Alexa browsing rate algorithm

1, a specific Web site is ranked, based on the browse rate of data according to the site's 3-month traffic records accumulated. That is, Alexa every three months to publish a ranking results, that is usually said ranking. Its calculations depend primarily on the number of access users (users reach) and page views. The Alexa system daily counts the number of visitors and page views per website, and obtains the current ranking by the geometric average of the cumulative value of these two three months.

2. Number of users (users reach) refers to the number of people accessing a particular Web site over the Internet. Represents the proportion of people who access a particular Web site to the number of Internet users. That is: access to the number of users = (number of visitors/all Alexa users) * 100%,alexa per million people as counting units. Take the World Network (linkwan.com) For example, if it has access to 2% users, that is, 1 million of internet users at random, 20,000 of whom visit the World Network.

3. Page views are the number of pages that a user accesses to a particular Web site. Is the sum of the number of pages browsed by all users accessing the site. The average number of pages viewed by each user is averaged over the number of independent pages viewed by each user who accesses the site each day. The same person, same day, multiple browsing of the same page is recorded only once.

Other factors affecting Alexa rankings

1, the use rate of Alexa toolbar in different parts of the world, by the user's language, geography, culture and other aspects of the impact. Therefore, the English web site, compared to other languages of the site, the traffic data is more easily to be fully counted.

2, vulnerable to the site to their own publicity, the number of advertising, and other sites for its impact on the number of links.

3, different types of Web sites are sometimes not comparable, so can not blindly compare comprehensive rankings. such as professional web sites in the same category of sites are very much in the front, but compared with the Portal class site, the browsing rate may vary greatly.

4, the ranking of the site is best to actively add their own URL address to the Alexa, otherwise the statistics of traffic will be affected, and Alexa does not provide the detailed statistics of the number of visits to these sites.

5, the browsing rate is too small site statistics may be inaccurate, the overall ranking on the front (the greater the browsing rate) of the site statistics more reliable. Generally speaking, the monthly visit volume below 1000 or ranked 100,000 after the website statistics is inaccurate.

To be sure, any calculation method is not perfect, so we can not comment Alexa rankings of impartiality and scientific. But since Alexa will related statistics through the Internet global public release, we all use Alexa statistics as a benchmark, from China to the world's authoritative news media in the discussion of a well-known web site scale, no Alexa for the standard. The world does not have a second like Alexa Web site does not need you to insert his code in the Web page and so on to calculate the ranking, he to all the sites around the world, we would like to trust their professionalism and authority.