Alexa World Website Ranking detailed research

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Site rankings are the most likely to cause concern and discussion, and for the world's more than 35 billion of sites set Shiji, not only that, the most important is the results of the rankings through the Internet to the world. This is enough to cause an uproar, for someone who is unknown to the truth, one day suddenly someone tells you, "your website is behind us", you must be a bit of a monk at this time. Who the hell is this, commenting on the heroes of the virtual world?

Alexa What is

Alexa is to publish a world site rankings and eye-catching a website, URL address for http://www.alexa.com/. In fact, this site's search engine is also very useful, but "site ranking" is the most important reason for its attention.

The Alexa Web site was founded in April 1996 to allow Internet surfers to share the resources of the virtual world and to organize more of the Internet resources. May 2002 Alexa gave up its own search engine and Google cooperation. They collect more than 1,000GB information on the internet every day, and then make a consolidated release. Now they've collected more URLs than Google. The figure below is a graph of the amount of information they give themselves. The vertical axis is the amount of an existing URL address, in 1 billion units. In other words, Alexa ranked among the world's four largest search engines in quantity, more than 35 billion.

　　

The focus is that Alexa not only gives the links to the more than 35 billion sites, but also for each of the sites ranked. It can be said that the Alexa is currently the largest number of URLs, ranking information published the most detailed site
Alexa site Rankings

Alexa's world site rankings are mainly divided into two types:

Comprehensive rankings can also be called Absolute rankings, which is the ranking of a particular site in all more than 35 billion sites. Alexa publishes a new comprehensive ranking of websites every three months. This ranking is based on the cumulative geometric average of three months for the number of user links (users reach) and page views.

such as the current world rankings top of the Web site: Yahoo (www.yahoo.com) Top of the list, MSN (http://www.msn.com/) immediately followed, two Korean website http://www.daum.com/and http:// www.naver.com/third and fourth place. The fifth place is the most famous search engine, Google (http://www.google.com/). On average, 308,000 people per day of internet users visit Yahoo. The world's leading E-commerce retail platform Amazon http://www.amzon.com/comprehensive ranking of 14.

Alexa will also be based on Web site comments, in the comprehensive ranking of information, with "star" to give the site a rating, the highest for "5 stars." The top ranking of the domestic website Sina net, got "2 stars". Alexa site itself does not participate in rankings, but Alexa to their own evaluation of 4 stars.

If the Alexa toolbar (Alexa Toolbar) is embedded in IE, the integrated rankings will be displayed for each visit to a website. That's usually what people call the rankings. If you view a site through Alexa, the first thing to see is the comprehensive ranking of the site, and with the day site home page screenshot, and the content of the site simple text description. Take www.blueidea.com as an example, showing its comprehensive ranking of 2,1304 (page Chettu or n months ago:)).

　　

Category one is classified by topic, such as news, entertainment, shopping, Alexa gives a particular site in the same category of sites. Alexa will be collected in the Web site has divided 16 categories, each under the category is divided into several topics. Second, according to the language classification, such as English websites, Chinese websites, French websites, German websites, etc., give a specific site in all such language sites in the rankings. Alexa provides ranking rankings for 21 different language sites. The Chinese web site also subdivided into: Simplified Chinese and traditional Chinese two kinds. The ranking of Chinese sites is only published in the top 100 list of websites.

For example, some of our country's famous portal sites and news-type web sites at the current comprehensive rankings and ranked in Simplified Chinese classification.

　　

Some other in the Simplified Chinese website 100 also: Lianhe Zaobao: Www.zaobao.com and Phoenix satellite TV http://www.phoenixtv.com/are located in 21st and 28 respectively.

Traditional Chinese websites rank in the top 5 in order: HiNet (www.hinet.net), Pc home Online (www.pchome.com.tw/), sweet potato Cane (www.yam.com/), MSN (www.msn.com.tw/) , Sina (www.sina.com/). Sina.com.tw and Sina.com.hk are in 6th and 8th place respectively. News categories such as: joint newsgroups, that is, the joint report (Udnnews) http://www.udn.com/ranked 7th in the traditional Chinese web site, Oriental Daily (www.orientaldaily.com.hk/) ranked 31st, the Sun ( www.the-sun.com.hk/) and Ming Pao (www.mingpaonews.com/) were located at 43, 44 respectively. In addition, the Star Island Daily, Radio Hong Kong, China Television and other websites have also entered the traditional Chinese website of the top 100.

Alexa will be a comprehensive ranking of the top 500 sites on their own website strongly recommended. Each through the Alexa visit of the website, Alexa first gives the information about the following map of the website (take People.com.cn of the Internet as an example). Includes: Comprehensive rankings, related site links, basic information about the site, contact information, comments on the site.

　　

The following information is blueidea.com site information, from the link and speed analysis, my site is not very ideal, want to be too many reprint not to add from the link bar. The slower access score, estimated to be related to the location and bandwidth of the room, although I am in Beijing, I do not feel too slow.

　　

With the link "see Traffic Details" on the previous page, you can view detailed statistics and charts about the number of visits to the site. To Sina Sina.com.cn as an example, you can learn that, in addition to the same site as above, a comprehensive ranking of the following information:

1, the most recent 3 months before the day, the first 6 months and a year's visit volume chart. The following figure is Sina.com.cn's visit to the 6 months since July 26, 2003:

　　

The following is the strange curve of the Blueidea chart, which shows that most of our members have classes, to the weekend will be rested, and blueidea.com in July after the revision to achieve great success, two months of time ranking rise quickly.

　　

2, the comprehensive ranking tables, including: Today's rankings, 1 weeks ago, 3 months before the ranking, and compared with the previous quarter ranking is up or down. The following is a comprehensive ranking of blueidea.com.

　　

3, the site all the columns are browsed the probability of detailed statistics. Http://pages.blueidea.com obviously not enough to promote. Cs.blueidea.com, too, has fewer mail servers, indicating that the team members of my site rarely use the Web mail system. If the mail server has a high percentage of access, it must be a site that provides free mail.

　　

4, the number of users linked to the day, the average number of user links a week ago, the first three months of the daily average number of user links (per million) and the day, the previous week, the first three months by the number of user links ranked, and 3 months to change these numbers. As shown in the following figure.

　　

5, the average number of users browsing the page, divided into: The day, the previous week, the first 3 months of statistics respectively. And there are ranked by the number of pages visited. and 3 months of page views and the ranking of these two changes. Can be seen, today my site's page views decreased, but the page views of the ranking, still 5,466.

　　

In addition, Alexa also published on its own website ranking changes the largest site, divided into the fastest rising ranking and ranked the fastest drop in the ranking of the site. For example, July 27, 2003, the Chinese Tourism network ranked first in the list of changes, the number of visits increased by 260%.

Such a large number of site addresses, such detailed data and statistics, established the Alexa World website Ranking authority. Alexa's rankings are undoubtedly lifting many people, especially those closely related to the site's appetite. People will inevitably think: why do our websites come after them? Is this rank science? Is it fair? How do you rank the front? The truth is, in any case, such a ranking has begun to have an impact, can not exclude it will affect the economic benefits of the site, and so on, and even bring deeper and further impact
Alexa ranking mechanism

For

1, alexa site ranking is based on the number of visits per specific site ranked. The greater the number of visits, the higher the rank.

2, the amount of traffic is defined on the domain site for statistics. such as: 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. Except for personal homepage, if the system can automatically distinguish from the URL address, it will be considered as a separate site. For example: in Silu (http://www.xilu.com/) to apply for myweb.xilu.com and hisweb.xilu.com two different personal home page space, myweb.xilu.com, Hisweb.xilu.com and www.xilu.com will be counted as three separate Web sites, rather than as part of a unified count in the xilu.com domain.

3. Sites that provide the same content will be counted as the same site. For example, the Communication Research network uses www.mediaresearch.com.cn and http://www.mediaresearch.cn/two domain names to publish the same content, and will be counted as the same Web site.

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 only under the Windows operating system, the Internet Exploer browser, the use of other operating systems or browser access will not be counted.

6, encounter a security or encrypted site (such as using HTTPS protocol), Alexa toolbar will automatically shut down, so those high safety factors of the site, Alexa will not be able to search and statistics rankings.

Traffic algorithm

1, a specific Web site is ranked, based on the amount of traffic data base on 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 user links (users reach) and page views. The Alexa system every day to each website user link number and the page browsing number carries on the statistics, through these two quantities three months cumulative value geometric average obtains the current rank. Change refers to the comparison with the previous three months.

2. Number of user links (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: The number of user links = (number of visitors/all Alexa users) * 100%,alexa per million people as the count unit. Take Yahoo, for example, if its user link number is 28%, that is, 1 million Internet users at random, 280,000 of whom visit Yahoo.

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 influencing factors

1, by the use of Alexa toolbar users of the language, geographical, cultural 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, as a result of a need, users may be too much access to Alexa.com, Amazon.com and archive.org these three sites, so the number of visits to these sites may be too high statistics.

3, very easily by the site to their own publicity, the number of ads, and other sites for its impact on the number of links.

We cannot comment on the fairness and scientificity of such a website ranking, but it is certain that any calculation method is imperfect, but it is important that through the above disclosure, have you found a way to make your site top ranking? The crux of the problem is: Ranked site is best to actively add their own URL address to the Alexa, otherwise the statistics of the traffic will be affected, and Alexa does not provide the detailed statistics of these site visits
Additional notes on a number of issues

1, the article "Alexa ranking mechanism-prerequisites" third "to provide the same content of the site will be considered the same site calculation" is Alexa own statement, but for many Chinese web sites have problems, such as the two domain name of Xinhua: Www.xinhuanet.com and www.xinhua.org, the content is the same, but in the Alexa rankings did not put the two domain name as a site, the former ranked more than 300, the latter 3,000. The same is also:

www.peopledaily.com.cn 1,030

People's Daily www.people.com.cn 566

Cctv.com www.cctv.com 197

China Central Television www.cctv.com.cn 1,238

2, some of the rankings of the site change very fast, a day or even a moment will change nearly million position.

3, to three months as the base of the calculation, is each site according to the absolute time period, such as January-March, April-June, or each site according to their relative time period, assuming that Xinhua is May 15 for the first time to login Alexa website, and then the August 15 published rankings.

On the above three questions, the author sent an email to the Alexa service center to answer, but after half a month today still have no reply, of course, the Mail also did not find the address was returned.

Institute of Journalism and Communication, Yang Binyan Chinese Academy of Social Sciences (part of the article modified)

(This article has authorized the publication of China Media technology magazine)

Special thanks to Ms. Xinhua Zihuijie to provide Web site clues, and the first draft to propose amendments.

Hope that the above article for their own development and growth of the webmaster to help. To sum up, as far as possible to their employees, loyal members, more than a piece of tool, and then every day in the site, your ranking can be elevated, if we all do, that ranking is more real haha. I think Microsoft should be embedded in IE, sampling a wide range, not now, always feel like a fraud.

With tool bar Download address

Http://download.alexa.com/alexa7/startpage.html?p=TrafficDet_W_t_40_B2