In-depth analysis of Baidu search results address bar link Parameters

Today is 2014 11 Holidays The second day is also the Double Ninth Festival, the so-called every holiday times festive, because of various reasons this 11 can not go home, but I also did not idle, recently has been in more in-depth research SEO and search engine algorithm, the first two days to share the TF-IDF word algorithm, Today to share a simple and good understanding of Baidu search results Address bar link parameters, I hope to be helpful to everyone.

Example parameters:

Http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&tn=baidu&wd=%E9%83%91%E5%B7%9ESEO

S?: Search

Baidu Search results page uses redirects, so what we see is not search.php? Such URL format

ie: query input text encoding

This setting affects the encoding type of the search parameter

F: Search Behavioral Judgments

8 for the user's own search, 3 for the Drop-down box search, 1 for related search. This key user user search behavior record and keyword statistics

RSV_BP: Number of searches

The RSV_BP parameter has three values: 0,1,2, where 0 represents the first search, 1 represents the search box at the top of the search results page, and 2 searches the bottom search box on the search results page. Record users with the top search or the bottom of the search

TN: Search Source

The value is a site tag. For example, from the hao123 Baidu input box search content will appear tn=hao123. Record that the value is used by Baidu statistical search sources, the source data may be as decision data

WD: Keywords for current search

Input keyword is urlencode string, encoding format is GBK or UTF-8, the default encoding format is Utf-8, the general Chinese will be encoded, if you want to decode the Internet search "Url_decode" then you can decode. It is used as a search for raw materials, Baidu will pass participle, sentence class and other operations, not directly retrieve the database, this is a complex process, follow-up will be introduced in the relevant blog, please pay attention to.

BS: Last Search for keywords

The content format matches the keyword of the current search. Used to record the user's search behavior, record the value is used in related keyword statistics, synonym analysis, and other operations

RSV_SPT: User Browser type

A value of 1 or 3 (for the time being only counted to these two values). Used to mark the browser currently used by the user, ie kernel browser is 1, non ie kernel is 1, but now this parameter is 3, still not know when to deactivate or change it for him

RSV_BP: Judging is the first few searches

Value is 0 or 1. When the user searches for the first time, the parameter value is 0, and the value is 1 when the user searches for a second search or more times on the results page for the first search. Used to record the user's search behavior, recording the value used to verify the quality of search results and related data analysis of related search terms

Inputt: Type Time

From open Baidu page start to click the Search button the length of time. This parameter is used to record user search behavior

OQ: The subjects of related searches

For example, search SEO is what, in the bottom of the relevant keywords in Taobao SEO is what meaning, when clicked after the value of OQ is what SEO is. This parameter is mainly used for related word statistics and user search behavior records.

rsp= n+1 Related Search

Count the number of related searches, such as the 4th time related search, then the value of RSP is 3. This parameter is mainly used for related word statistics and user search behavior record

PN: Page number

The value is a arithmetic progression with a tolerance of 10. Used for page numbering and also for verifying the quality of search results

CL: Search Type

A value of 3 is a web search, and the corresponding type of other values is not yet counted. This value affects the sort of search results

LM: A specified period of time Baidu included information query

A value of 1 o'clock is the last 24 hours; 7 o'clock is the last 7 days; the value is 30 o'clock is the last 1 months; The value 360 is the last 1 years

RN: Search results display bar count (record number)

The value range is between the 10~100 bar and the default value is 10

Si: Search in the Qualified domain name

Mainly used to retrieve a site Baidu index data, such as want to have only to Baidu search results, then the value of the parameter is baidu.com. This parameter must be used in conjunction with the CT parameters.

CT: The value of this parameter is usually a string of numbers

This is supposed to be the verification code for the search request, which has not been analyzed yet.

Baidu algorithm is often changing, so there will be a number of new parameters, if we found that the new parameters may wish to work with bloggers to analyze, learn Baidu new features