Web page signal-to-noise ratio and SEO optimization

Webmaster friends may know SEO optimization, but rarely know what is the Web page signal-to-noise ratio, even some SEO personnel, may not pay attention to this concept. In this paper, the concept of the Web page signal-to-noise ratio is brought back to everyone's perspective, so that we know the concept of the Web page signal-to-noise ratio, so that the process of building a site can be noticed.

(a) What is the signal-to-noise ratio of the Web page

The signal-to-noise ratio of a Web page refers to the ratio of text content to HTML code on a Web page. From the principle of the search engine, its crawl system is the first to download the entire Web page, and then the contents of the text extracted, after analysis to remove the HTML format, clear noise, and then participle, and finally deposited into the index library. In this process, the search engine will also go through the process of denoising, it is obvious that the higher the signal-to-noise ratio of the Web page, search engine crawl efficiency will be higher, search engine spiders need to deal with a lot of data every day, how to quickly extract the subject information of the Web page is a very important task.

(ii) the role of the Web page signal-to-noise ratio

In Web optimization, search engine main crawl to remove HTML tags after the text content, this part of the content can be considered to be not distorted sound signal (because signal-to-noise ratio is originally an acoustic concept, you can click here to see Baidu entry), while the resulting part of the HTML tag content, can be considered noise. In acoustics, the higher the signal-to-noise ratio, the clearer the sound, the same, the higher the signal-to-noise ratio of the page, the more pure text content in the page, Search engine crawl page easier.

The information that exists on a Web page is not always useful, it can be divided into useful information and useless information. Search engine work is generally through the title of the site, description, keywords and external links and other factors to determine the type of your site, and then according to this type to identify the text on your site, if the text and site types can be touched above, then the more useful information, if the difference is very large, that is useless information, Then, the ratio of useful information to useless information is higher, and the greater the ratio, the more the content correlation is. Perhaps you would think that if I insert keywords into a large segment of text that is not related to the type of Web site, would it be possible to increase the relevance of the content? In fact, this is wrong, this seriously affected the user experience, but only in the accumulation of keywords, it is likely to be the search engine identified as cheating, so, this is also a noise.

(iii) Optimization methods

Of course all the ways to increase the ratio of text content should be to improve the signal-to-noise ratio of the Web page, mainly include: reduce the picture in the page, Flash, the HTML page CSS style into the external call of the CSS style sheet, encapsulation css, JS, etc., these methods can effectively improve the signal-to-noise ratio. Any calculation method is based on the spider reading the least data to obtain the most useful information, which is the most friendly principle for the search engine.

(d) How to find signal-to-noise ratio

The general artificial to calculate the page signal-to-noise ratio This is not realistic, we can use the Signal-to-noise ratio query tool to query, on the Internet to provide a signal to noise ratio query tools are not many, recommended the use of Webmaster Toolbox to provide Signal-to-noise ratio query function. Generally speaking, the Web page signal-to-noise ratio is more than 30% is more reasonable, it is recommended to improve the content of the Web page relevance. Just used the tool to query the home page, the query result is 55.8%, the tool indicates that the first page of the blog's signal-to-noise ratio is still good, but, I hope you understand that the tool is only a reference, can not believe it, reasonable use of tools can make the work more convenient.

This article starts in Ye Dehua's blog, the original address: http://www.yedward.net/index.php/archives/939.