Alexa rankings research and analysis of actual combat

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mentioned Alexa rankings, I'm afraid the industry know a few people, the same, do not know the outside of a few people. So for Alexa's understanding, can be described as "polarization". Recently, the Alexa rankings controversy again, make Alexa again become the focus of people talk about.

alexa--, who are you?

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's world site rankings are mainly divided into two kinds: comprehensive rankings can also be called absolute ranking, that is, a specific site in all more than 35 billion sites in the rankings. 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. 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.

　　

The basis of Alexa ranking--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.

Can you read Alexa?--alexa site Stats Detailed

For a considerable number of people, the Alexa data and the meaning of the representative is not very clear, which in some way affect the Alexa influence and the Alexa toolbar installation. Below we take the Internet Laboratory website (http://www.chinalabs.com) as an example to introduce how to read and analyze Alexa's Stats about the site of this column parameters. The image below is a screenshot of the Site Stats column in the overview of the Internet Lab http://www.chinalabs.com.

Site Stats for chinalabs.com:

Traffic Rank for chinalabs.com:8,121 (1,363)

Speed:very Slow (96% of sites are faster), AVG Load time:6.4 Seconds (what ' this?)

The other sites so link to this site:145

Popups:many (18%c3f8 of sessions have popups)

Online since:19-aug-1999

The first line means: Your domain is now ranked how much, the second is your three months of change is how much, the upward arrow is, the meaning of ascension (note that your site's information may also be a drop icon).

Chinalabs.com is now ranked 8,121, up 1,363 places in three months.

The second line is today's focus: translation is

Speed:very slow (sites are faster), AVG Load time:6.4 Seconds

Speed: General (96% of the site faster than you), the average download page time is 4 seconds

Pay attention to faster or slower two words, one represents fast, one represents slow.

Because of different websites, the words may be used differently.

Question: What is "speed" and what is the measure of speed? The following is the Alexa explanation.

Speed is a time standard that measures the time it takes to download pages in a Web site. Speed is based on the Alexa user through the regular browser download time, and by the Alexa tool bar to measure.

Page download times can be influenced by a number of factors, including the size and complexity of the file, the response and location of the Web server, and the speed of Internet access for typical users of the site. Special types of Web sites usually download faster than others; the pages of these sites are mostly displayed in text so they are very fast, and e-commerce sites or other websites with personalized options and non text content will take a long time to download. Therefore, for shopping websites and other content-rich sites, it is impossible to compare with plain text sites. After the average download time, it has been expressed as a relative percentage point, which distinguishes the average download time from other pages.

This percentage point indicates how quickly the site is downloaded relative to other sites. For example, a site at point No. 9800 (very fast) is relative to 98% other sites, the median download time will be fairly fast, while the 2nd-bit site (very slow) is only slightly faster than the other 2% sites, and is much slower than the other 97% sites.

So, you need to adjust the ratio of graph and text in the page according to this parameter, of course, there are also segmented download considerations, such as the site, a lot of content, the full download speed is slow, but in the home page, has been segmented download, so we are looking at one side, downloading, feeling, not slow. Reasonable use of technical means to make up for speed is also necessary.

The third line is how many sites are linked to your site.

The line four is a new addition, roughly referring to a pop-up window. Because the Alexa tool bar has pop-up window shielding function. So this function can be counted. Few says very little. That is, your site to use less pop-up window browsing. Try to be in a window. For our site, in addition to others to the site, the general pop-up is very few.

Line five is your site history. is when you start the site on the Internet. There is no limit to the best--alexa

1.Alexa rankings are ranked according to the number of visits per specific site. The greater the number of visits, the more forward.

2. The amount of traffic included in the 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.

The 3.Alexa toolbar works only under the Windows operating system and is available in the Internet Exploer browser, and access to other operating systems or browsers cannot be counted.

4. Access to security or encrypted sites (such as the use of 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.

5. The use of Alexa toolbar users of the 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.

The Black Sheep--alexa cheating

In addition to the limitations of Alexa, individual sites in order to improve their Alexa rankings, want to do all the way to improve their Alexa rankings, which is causing people to doubt the Alexa authority of one of the main reasons. These sites commonly used methods:

1. QQ virus, quick promotion website in short time. Remember a foreign network marketing terminology, called viral marketing, but this marketing method is not to use the virus propaganda, but to describe the speed of web site promotion like a virus spread. such as the promotion of free mailbox. However, from the beginning of last year, the real virus marketing in China, certainly let many foreigners blush;

2. Web page malicious code: including automatic modification browsing user's IE: (including default homepage, default search settings, etc.);

3. Advertising Chain Support: This site in the beginning of the operation appeared in the front of many advertising chain;

4. Program control browsing users automatically download and install Alexa toolbar. Allow browsing users to install Alexa toolbar can be very effective to improve their site's world rankings. (A site without traffic, if two people with Alexa toolbar with the browser daily traffic this site 100 times.) Also called the brush Alexa, the world rankings of this site can be in one months lightly loose into the top 100,000;

5. Crazy Pop-up page plus refresh: If your machine weighs its poison, as long as you open the browser, it will pop up four or five of its advertising page, and then part of the automatic refresh, and then automatically shut down. When you click into it, the same will pop up four or five pages, several quickly refresh, and then automatically shut down;

6. Other means of cheating, such as modification of the procedure.

Others even thought of the Alexa cheat download a go back to its own on the brush Alexa play, improve the Alexa click-through and Alexa stars. Lend you a pair of eyes--look at the picture cheat

One. Typical cheat Type

　　

As can be seen from the diagram, this is a feature of violent refreshing in less than 2 months when the curve beats down and is strong.

Because the Alexa map does not list the following 100,000 data, so it is difficult to see the lowest drop number, this station in the sample

When it has fallen back to world rank more than 300,000. Sample as a personal site.

Two. Cheating recession type

　　

This sample for a well-known Tibetan malicious code site, the number of attacks on the domestic Internet users by the figure is visible, but after all, for the worthless cheat site, in the Internet users to overcome the decline of malicious, the site's brilliance will never be three. Normal type

　　

Jumps in a very small range (see left digit), as the rankings are higher, the curve jumps from the surrounding competition.

This sample is a well-known site in China.

Four. Normal sliding type

　　

Within 6 months under normal operation, the rank regularity drops thousands of, does not rule out the possibility which continues to fall, but the sign indicates for the normal slide, this sample is a foreign national industrial product site
Five. Normal rising type

　　

The steady rise in popularity, the figure shows the ranking to about 2000 when the trend is basically stable, but also the reliable location of such sites, after all, as a part of the face of the site, such sites if the ranking in a very high position instead of normal. Sampling for an intermediary agency site.

What can we do--standing on the shoulders of giants

From the above use, it is not difficult to see, Alexa despite the limitations, but the current industry site ranking authority, should be non-Alexa. So now some market research and consultancy companies are based on Alexa data to push their rankings. For example, the Internet Laboratory () launched a monthly list of top 500 websites in mainland China (Alexa filter version), is based on Alexa data, combined with their own technology and the influence of the Internet to launch the rankings, and to analyze and comment, It effectively overcomes some of the sites in the Alexa rankings when the cheating (so called the filter version), at the same time, all the Mainland China 500 site rankings, which for the industry and related websites to understand the industry and its own development. In addition, the Internet laboratory also based on Alexa data, the domestic site is divided into 24 categories, the daily launch of the Cisi list, has been recognized by the industry. And for each site, through the Alexa site rankings can understand the strength of rivals, can understand their company's traffic growth and decline. But the premise is that you have to upload the so-called Alexa toolbar (download) on your computer. If you want to know the taste of plums, you must taste them yourself. I believe Alexa site ranking will bring you a lot of ...