Search engine research --- network Spider Program Algorithm
How to construct a Spider Program in C #Spider is a very useful program on the Internet. Search engines use spider programs to collect web pages to databases. Enterprises use spider programs to monitor competitor we
Website optimization work is around the Baidu Spider and do, I believe that this point of view you will not be the optimization staff. That said, many of the optimization of the spider's working principle is very unfamiliar, so the site optimization or stay in the original point, can not continue to upgrade.
In this way, we need to understand the working principle of spiders and according to the working principle of spiders to develop and improve the
Recently a customer's website in Baidu display title and description is someone else's, the problem is the first encounter, and then consulted some experienced master, to understand that the customer's website is someone else carried out the Baidu spider hijacked, so the present situation. The following figure:
The original title of the customer's website is as follows:
Baidu Spider hijacking
I believe you webmaster have heard of the search engine spiders, search engine spiders are mainly to crawl the content of a Web site a system called the majority of the webmaster are called spiders, for the establishment of SEO optimization we should learn how to attract spiders to visit our site to crawl the page.
First, preemptive
Believe that the search engine spiders for the new station is not too cold, since a lot of novice webmaster Construction Station is the need to capture the
http://www.php.cn/wiki/1514.html "target=" _blank ">python version management: Pyenv and Pyenv-virtualenv
Scrapy Crawler Introductory Tutorial one installation and basic use
Scrapy Crawler Introductory Tutorial II official Demo
Scrapy Crawler Introductory Tutorials three command-line tools introduction and examples
Scrapy Crawler Beginner tutorial four spider (crawler)
Scrapy Crawler Beginner Tutorial Five selectors (selector)
Scrapy crawler Getting S
This article mainly introduces PHP code summary for determining whether a visitor is a search engine spider or a common user. There are always one method that suits you, prevent search engine spider from dragging the search engine. 1. recommended method: php judges whether the search engine spider crawlers are manually accessing the Code, from Discuz x3.2
In
A long time ago, in a very prosperous temple, there was a Buddhist spider.One day, Buddha passed by from heaven. Buddha came to this temple and saw the spider,Buddha asked: "Spider, do you know what is the most cherished in the world ?"The spider replied, "what is missing and what has been lost ."Buddha said, "well, I will ask you this question three thousand yea
Spider RPC Management Interface and spiderrpc Interface
Spider middleware provides a series of restful APIs to dynamically manage the routes and downstream nodes of the current node to troubleshoot problems as easily as possible in the independent management mode. Currently, RESTFUL APIs are supported as follows:
Function
Service number
RESTFUL address
Query route information
0000
The market performance of the sea spider Broadband Router is very good, and the demand is also increasing gradually. Here we mainly explain the performance characteristics of the sea spider Broadband Router, in the rapid development of the network era, the Internet cafe industry is evolving in a chain, standardization, and specialization direction from a decentralized and independent business model.
Interne
When Nokia was used in the past, there was a game of "smart King" in its mobile phone. One of the projects of small intelligence was to study the crawling of SPIDER in many spider networks according to certain rules, then, determine which sequence number the spider crawls out. This model is implemented in C language.
As shown in (the leftmost digit represents the
Do SEO no one does not know spiders, robot.txt file is the file and spider communication, many people will say how to let spiders crawl, but very few people know to use robot.txt to control spiders, robot.txt use good words spider can be used for you. Let me introduce how to manipulate spiders.
One. Screen the same page
Search engines are a thing of the same, will not be included in duplicate or existing
not be updated the next day, but the update time significantly improved, before is a half month update once, now, the URL is updated on the same day, the key word is updated every day, from time to time will also be updated, which for me has been very satisfied, after all, I am still a novice, down I will tell you My views on Baidu Snapshot:
As we all know, improve Baidu snapshot update time, its essence is to attract Baidu Spider to our website, an
1: What is a spider pondSpider pools are divided into bridge pages and Sitemaps. Bridge page for single page template inside all point to external link label A bridge page is usually the software that automatically generates a large number of pages containing keywords, and then automatically turns to the homepage from those pages. The goal is to hope that these different keywords as the goal of the bridge page in the search engine to get a good rankin
The current website optimization, search engine more and more stringent, Baidu Spider also become more and more intelligent. Our website develops well or is bad, the traffic is many or few, before or after the high income or meager, by the Baidu Spider on your site's loyalty, your site if the charm can be attracted to spiders every day and include your website information, then your site development prospec
Determining search engine spider crawlers is actually very simple. You only need to determine the source useragent and then check whether there are any strings specified by search engine spider. Next let's take a look at the php Method for Determining search engine spider crawlers, I hope this tutorial will help you. Determining search engine
be affected by K.I. Website homepage stickinessBaidu spider enters your website from the home page. The probability of entering from other pages is basically 1%. To stick Baidu Spider to this point, we must update the website content on the homepage. Only when a spider finds that the home page has changed will the spider
know the chain is like a spider crawling spider silk, if the chain construction of good words, spiders crawling naturally frequent, and we can record from which "entrance" into the spider's frequency is high.
2: The content of the site to update the spider crawling with a certain relationship, generally as long as we update the stability of frequent, spiders wi
the original Web site navigation bidding system based on the development of their own competitive bidding system and Baidu competition, in the struggle for ordinary users of the Internet, Seize the personal webmaster and Enterprise user market.
Related information:
What is a search engine spider
The search engine's "robot" program is called the "Spider" Program, as the "robot" program used to retrieve i
"Search engine spider Crawl law one of the secrets of spiders How to crawl the link" write the distance today has been more than 20 days, would have been writing down, but after the first article, suddenly no idea. Today with friends talk about the timeliness of the chain, that is, outside the chain will not fail.
This article no longer discusses the relevant content of the theory, but will give some examples to prove the first article,
C # is particularly suitable for constructing spider programs because it has built in HTTP access and multithreading capabilities, and these two capabilities are critical for Spider programs. The following are the key issues to be solved when constructing a Spider Program: (1) HTML analysis: an HTML Parser is required to analyze every page that the
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