Alexa related Common sense

I. Alexa background knowledge

Alexa is to publish a world site rankings and eye-catching a website. Alexa, which started out as a site navigator, was founded in April 1996 to allow Internet surfers to participate more in the organization of Internet resources while sharing virtual world resources. May 2002 Alexa gave up its own search engine and Google cooperation. They collect more than 1000GB of information on the Internet every day, and then make a consolidated release. Now they've collected more URLs than Google. It can be said that in the volume, Alexa ranked the world's top four search engine first, has exceeded 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 in the rankings. Alexa is currently the largest number of URLs, ranking information published the most detailed site. Users can also use the Alexa site to compare the rankings of different sites.
Know who is called the father of world e-commerce? Jeff Bezos!
His website www.amazon.com Amazon!
Alexa was founded in 1996. After being attributed to Jeff Bezos.

Second, the Alexa is fair?

Many people raised the question.
The world does not have a second website like Alexa do not need you to insert his code in the Web page and so on to calculate the rankings. He treats all the websites of the world equally.
No matter today from China to the world authoritative news media in discussing the scale of a famous website, the Alexa is the standard.


Third, the Alexa how to update rankings and data?

I will not look at Alexa, do not say that others lazy, we take the world's first Yahoo as an example:
After you enter the www.yahoo.com URL, you will receive:
1, the screenshot of the website.
There are two rows of data on the right:
Avg. Review for yahoo.com:
Traffic Rank for Yahoo.com:1
The first line is that the site was rated several stars.
The second line is the site's global ranking: 1th place.
2. Next, there is an icon and a traffic Details
This is the detailed data and the most important, we will say this in detail below.
People who visit this page also visit:
There are usually many URL links below this line
This means that people who visit the site also visit which sites.
That is, a site similar to or associated with the nature of the site.
We skip the following paragraph:
People who are interested in this site also bought:
This line is Amazon's advertising. (about why Amazon put ads here, here we don't talk about)
Contact Info for yahoo.com:
Data for this site:
Traffic Rank for yahoo.com:1 (world rank, 1th place)
Other sites that link to this site:200,029 (there are 200,029 backlinks linked to the site)
Contact Info for yahoo.com:
(Contact information for this site)
All reviews for yahoo.com
(Evaluation of the site)
Look for similar sites by Category:
(The classification of the site, which is taken from the Dmoz.org site classification results.) Google also takes this category. ）
We now look at Yahoo's detailed data:
Click on the small picture next to the Yahoo site screenshot, or text:
Traffic Details
The first show is the site ranking chart. (Default is 6 months of results), you can also choose 3M (last 3 months), 1Y (1 years), 2Y (2 years)
(here explains: Why is Yahoo's graph a straight line?) Because he has always been the first in the world)
The value on the left of the graph a site is not the same as a site, depending on how much of your site's worst rankings, the highest ranking of the day, is shown on the chart. such as a website, the worst one ranked 81,000, the highest day ranked 2000, generally between tens of thousands of to thousands of. Then the value on the left side of the figure will show 100,000 bits, 60,000 bits until 5,000 bits. (100,000-bit not shown below)
The data is updated daily!
There's an input box underneath the data. You can enter a different URL, the chart will become a contrast chart, you can compare your, another site's ranking curve contrast.
Why the curve? Because your ranking is high and low every day, it moves like a curve.
We pay attention to the following four lines of data, I directly expressed in Chinese, you will see very clearly. This data is updated daily, usually at 22:00 in Beijing time--0 o ' night. This is not necessarily the time period Ah! But it must be updated every day.
First line: Number of visits (Units of measure: How many of each 1 million Alexa users have visited your site)
Average daily increase in the average of March 1 weeks per day
284,500 285,850 299,600
The second line: today's number of visits ranking
Average daily increase in the average of March 1 weeks per day
1 1 1
Third line:
Average number of pages per Alexa user visited:
Average daily increase in the average of March 1 weeks per day
19.0 19.0 18.9

Line four: Your ranking
Average daily increase in the average of March 1 weeks per day
1 1 1
To see your data today, just look at the first column, all the results expressed for today, Yahoo is still the first, you? Today will be the day to get the rankings, tomorrow to see, will be the ranking tomorrow.
3, site new or major updates, or in Alexa can not find you, in this page to submit the URL below
Http://pages.alexa.com/help/webmasters/index.html#crawl_site

4. How to fill in my contact information?
In the contact Info for alltheweb.cn line:
If you do not have your contact information, a single line of English is displayed here:
We have no contact information for this site. If you are your site, you can update your information and our contacts information Editor.
(The site has no contact information, if you are the owner of this site, please fill in the contact details)
Click to fill in the form below:
Site Name:
Address 1:
Address 2:
City:
Province:
Zip:
Countries:
Phone:
Email:
(Confirm what you want to appear, tick back)
Note: If the domain name is abc.com, your mailbox should be XXX@abc.com, otherwise, you can not change the contact information.
When you are sure, your email will receive a confirmation letter. Click Confirm, and a few days later, your contact information will appear.

5, the star of the website.
All reviews for alltheweb.cn


Four, the Alexa on the interpretation of the relevant nouns
1. What is the ranking of traffic?
Traffic ranking is based on thousands of Alexa toolbar users three months of traffic data statistics, is the user volume and page access to the comprehensive evaluation. First of all, Alexa input online all the Web site daily user volume and Web page access volume. Alexa traffic ranking is a certain period of time the geometric average of these two data. (So a Web site traffic rankings can reflect the number of users to visit the site, but also reflect the amount of pages visited by these users) "Three months of change" from the current ranking of traffic and three months before the flow rankings made comparison. For example: July 1, "Three months of change" reflects the first-quarter and second-quarter flow rankings of the difference.
2. What is the user volume?
Users count the number of users, in percent form, the base is millions of people. For example, a website such as yahoo.com has a user capacity of 28%, which means that 1 million Internet users, 280,000 of whom visit yahoo.com. The average number of users for the Alexa week and three months is averaged by the number of users per day. The ranking of users is the ranking of the number of users on all sites. "Three months of change" from the current number of users ranking and three months prior to the number of users to compare the rankings.
3. What is the number of Web Access?
The number of pages visited is the number of pages accessed by the Alexa toolbar user. The same user who accesses the same page multiple times on the same day is counted only once. The number of page accesses per user is the average number of pages opened per day by each user who accesses the site. The number of Web page visits is ranked by the total number of web pages visited, not by the number of page accesses per user. "Three months of Change" by a site's current Web access number and three months before the number of Web pages to compare.
The number of Web pages per million indicates the proportion of all pages that a Web page occupies for all Alexa toolbar users. For example, the number of Web pages accessed by yahoo.com is 70,000 per million, which means that yahoo.com Web Access accounts for 7% of all Alexa toolbar user pages.