spider scraper

If the search engine does not have a good tour of the content of our site, then we even invest in the site of how much energy is naught. The best way to avoid this is to be able to fully plan the structure of our entire site. First, we begin to build our site before, we need to go to a good analysis of search engine crawling patterns and laws, because we know that search engine is the use of "spiders" crawling our site source code to crawl links, so good to collect our site page, so that wareho

High-quality web sites, usually have a performance: content included in time, to protect the original content in a timely manner indexed to the search engine, on the other hand in the Instant messaging Internet, but also for the site to bring an unpredictable flow of opportunity. Therefore, the content of the second collection has become a common aspiration in the process of building a station. Although some say, the new station can also be a second, but how many people can guarantee the new sta

This article describes how to use js to determine the source of a spider. The script for this method is written in the onload of the body. When the page is loaded, it will be judged, if you are interested, let's take a look at the JS script introduced today. The method for determining the source of the spider is written in onload of the body. That is, when the page is loaded, it is judged. The Code is as fo

To use PHP to implement the UA whitelist, you must be able to match the regular expressions of basically all browsers and major search engine spider UA. This problem may be complicated. let's see if anyone can solve it. To use PHP to implement the UA whitelist, you must be able to match the regular expressions of basically all browsers and major search engine spider UA. This problem may be complicated. let'

The difference between a normal user and a search engine spider crawling is the user agent that is sent, Look at the website log file can find Baidu Spider name contains Baiduspider, and Google is Googlebot, so we can determine the user agent sent to decide whether to cancel the access of ordinary users, write functions as follows: Copy CodeThe code is as follows: function isallowaccess ($directForbidden =

Can $ _ SERVER ['http _ USER_AGENT '] discover Baidu spider? I made a website to count the access situation of Baidu Spider. can I find this variable? What can I do ?, If (strpos (strtolower ($ _ SERVER ['http _ USER_AGENT ']), can I find Baidu Spider in $ _ SERVER ['http _ USER_AGENT? I made a website to count the access situation of Baidu

How can we prevent unfriendly search engine robot spider crawlers? Today, we found that MYSQL traffic is high on the server. Then I checked the log and found an unfriendly Spider crawler. I checked the time nbsp; and accessed the page 7 or 8 times in one second, and accessed the website's entire site receiving page. It is not listening to query the database. I would like to ask you how to prevent such prob

How can we prevent unfriendly search engine robot spider crawlers? Today, we found that MYSQL traffic is high on the server. Then I checked the log and found an unfriendly Spider crawler. I checked the time nbsp; and accessed the page 7 or 8 times in one second, and accessed the website's entire site receiving page. It is not listening to query the database. I would like to ask you how to prevent such prob

Author: rushed out of the universe Time: 2007-5-21 Note: Please indicate the author for reprinting. The spider technology is mainly divided into two parts: a simulated browser (ie, FF, etc.), and a page analysis. The latter may be considered not a spider. The first part is actually a project problem, which requires a relatively regular time building, and the second part is an algorithm problem, which is har