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Alexa for stationmaster, not be unfamiliar. Now SEO rage, also will Alexa rankings included. The author in the personal blog has mentioned Alexa rankings, especially the top 500,000, the top 300,000, the top 200,000. Often have Bo friends asked what is Alexa? Alexa in the end what is the use of it? With the deepening of interest, the author also slowly Alexa and its peripheral knowledge some accumulation, summed up, I hope the Alexa Topic series log can give webmaster Hai Boyu to bring fast-food learning.
Alexa (www.alexa.com) record belongs to Amazon.com is a website that publishes the world rank of the website specially. Alexa, who started out as a search engine, abandoned its search engine in May 2002 to work with Google. Alexa collects more than 1,000GB information on the net every day, then carries on the consolidated release, now he collects the number of URLs ranked the world four search engines first, has surpassed 3.5 billion, surpasses the Google.
Alexa is the most attractive place is its website browsing rate statistics and world rankings, Alexa not only gives up to billions of of the URL links, but also for each of the sites in the rankings. It can be said that the Alexa is currently the largest number of URLs, ranking information published the most detailed site. Like "Forbes" is to the millionaire rankings, Alexa is the world's Web site "Forbes" list. Currently become the world's authoritative website traffic monitoring services, many market research agencies also cited the site's traffic statistics rankings.
for Alexa ranking mechanism, some people raised the question of whether Alexa is impartial. No matter today from China to the world authoritative news media in discussing the scale of a famous website, the Alexa is the standard. The world does not have a second like Alexa Web site does not require you to insert his code in the Web page, and so on to calculate rankings, for all sites around the world without discrimination. Although China also has the Alexa ranking mechanism, but the rankings are not a top spot. Strictly speaking, Alexa rankings have reference value, but not absolute ranking system, the higher the rank, the higher the reference credibility index, the basic to 100,000 within the benchmark, 10,000 within the reference value.
What is the role of Alexa rankings? Because more and more websites pay attention to rankings, so there are a lot of cheating websites and software, gradually let their rankings lose a certain fairness. Undeniably, the Alexa rankings will still be the focus of many commercial websites. Often see in some Web site link requirements will have Alexa ranking within 10,000 priority. Especially for commercial web sites, I think the main role has three points: the basis for advertising charges, one of the basis for evaluating the value of the site, one of the strategies to study the competition site.
