Analyze the Evolution course of website Data statistic index in SEO

It is well known that Web site data analysis is an important part of SEO, but with the development of Web technology, Web site statistics indicators have also undergone a great change, experienced a from hit to PV, and then to the process of UV. Perhaps some stationmaster friend does not understand this development process, Quidodo together and everybody share under.

　　The evolution of website statistic data from hit to PV

Hit Chinese meaning is "click" to indicate the number of page requests, a site access request is recorded as a "hit", these requests can be HTML files, can also be pictures and so on. For example: There are 5 images in a Web page, one visitor looks at the page once, then hits=1+5=6. But at present, it seems that a home page contains hundreds of hit, and it is important to note that hit and visitors have no relevance, so this indicator no longer has any meaning. Because the early internet mainly through advertising to obtain revenue, so PV was quickly accepted by everyone, more PV means more times of advertising display, so PV began to pop up, until now, there are still a large number of CPM mode ads exist.

Small Knowledge: PV (Page view), that is, the number of pages viewed, or clicks, is usually a measure of a network news channel or website or even a network news main indicator. The Master of PV explanation is that a visitor in 24 hours (0 to 24 o'clock) in the end to see your site several pages. Here need to emphasize: the same person browsing your site on the same page, do not repeat the calculation of PV, point 100 times also counted 1 times. To be blunt, PV per capita is a visitor who opens up several pages of your

　Second, the website Statistic Data index from PV to the UV evolution

With the successful operation and popularity of Ajax and Flash technology, PV measures the importance of Web site indicators is declining, due to a large number of Ajax and Flash Web sites, PV total statistical indicators in the Web site data analysis of the importance is also declining, replaced by UV. UV (unique visitor) refers to the number of people visiting a site or clicking on a different IP address for a news message. In the same day, UV only records the first time to enter the site with independent IP visitors, the same day to visit the site is not counted. Independent IP visitors provide statistical indicators of the number of audiences for a given period of time, but do not reflect the full range of activities of the site.

　Third, the Web site statistics Indicators of the working principle of UV

In order to statistics the actual number of Web site access, the site analysis system will generally use some technical means to judge the site UV, the main principles are as follows:

Judging by Web server

The Web server receives many page requests, and each request contains information about your computer, such as IP address, time of request, browser version, operating system version, and so on. The Web server analyzes these requests, if they satisfy some common characteristics, such as from the same IP address, and the browser version, the operating system version, the request time, and so on, if this series of definitions are met, then you can assume that these requests come from the same visitor, So these visits naturally produce 1 of UV. Of course, the definition of common features is determined by the settings of the Web server. Generally speaking, it is more common to define with IP address + other features.

Judging by cookies

Someone on the site to launch the first page or function of the request, the Web Analytics system will be in this person's computer to generate a stand-alone permanent cookie. The person leaves the site and the cookie remains on the computer, which contains a separate ID number, which does not contain the personal information of the visitor. Every time this person uses this computer to access your site, the system will return a separate ID number to the Web Analytics system.

　Four, in-depth analysis of the statistical changes in UV data

Some webmaster friends may be daily statistics UV, and then will find in a statistical interval of the total UV data and web Analytics system to give the data is not the same. Why is that? Quidodo For example, suppose there are 7 independent UV, we call it ABCDEFG.

First day: ABCDE statistics Uv:5

Day two: FG statistics uv:2

Day three: A statistic uv:1

Day Fourth: AB statistic Uv:2

Day Fifth: CDE statistics Uv:3

Day Sixth: ABFG statistics Uv:4

Day seventh: EFG Statistics Uv:3

This week the webmaster statistics of the UV data is: 20, but the website analysis system gives the data will be only 7. The reason is simple, the website statistics system gives the data is absolutely only independent visitors, is removed redundant visitors data.

In short, no matter how the Web site data statistical indicators evolve, a bit unchanged is the content of the site itself is the real value. Although UV is now the mainstream, but in the web2.0 era will certainly not be a long time, read a article as if to say that the UV trend is "requested" changes, as if to say that "request" will become a long-term measurement of the value of the site's important indicators, its importance will certainly exceed UV. In short, to understand the past, looking forward to the future is not bad, as you believe it, I am a letter anyway. Finally wish you all "Tanabata Valentine's Day" Happy!

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