spider duo

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 visited the page 7 or 8 times in one second, and accessed the website's whole site receiving page. It is not listening to query the database. I would like to ask you how to prevent such problems? Now I have static this I

The meaning of web structure for spiders Put aside all the complicated terminology of the mouth and explain it in an understandable way. Like flattened structures, spiders only need to keep running on the same level of directory. How can you let a spider crawl without a road? It's a dead end! Spider crawl path to take what principle Often the above explanation believes that everybody understands, then I

This tutorial introduces very classic spider webs and the method of making water droplets. The general process: the first simple to pave the background color. Then create a new layer and use a pen to hook up the spider web and paint it. Then use the brush point on some small points as water droplets, later to these small points and layer style, to make a sense of water droplets transparent. Final effect

The loading speed of the website is vital for the development of the website, it takes a long time to open the website, the vast majority of users are impatient to continue to wait, often are directly shut down the site. Spider crawling site also followed the principle, so to enhance the site load speed, so that the site opened faster, in this respect, Baidu did very well. The loading speed of the website greatly affects the development foreground of

I do not intend to use the blunt language to describe what is SEO, how to do seo. Then we might as well change a more image way to understand how to let Baidu fall in love with your site. Do not know how many webmaster feel to do the site is also a great project, stationmaster is a sacred occupation? I hope that through this article to inspire every grassroots webmaster regain confidence! Many times the webmaster has been frustrated, but also have pain. And most of the reason is because of traf

The multi-threaded spider program is a very useful component, and I have also provided one in my own spider studio. In the design I try to follow the use of simple principles, a large number of features of dynamic objects, so that the code is very concise and flexible, through 17 lines can achieve a more complete function of the spider program. Now share with you

This article is a detailed analysis of the code for using PHP to implement log statistics on spider access. For more information, see The code is as follows: $ Useragent = addslashes (strtolower ($ _ SERVER ['http _ USER_AGENT ']); If (strpos ($ useragent, 'googlebot ')! = False) {$ bot = 'Google ';} Elseif (strpos ($ useragent, 'mediapartners-google ')! = False) {$ bot = 'Google Adsense ';} Elseif (strpos ($ useragent, 'baidider Ider ')! = False) {

Spider-web is the web version of the crawler, which uses XML configuration, supports crawling of most pages, and supports the saving, downloading, etc. of crawling content.Where the configuration file format is:? 123456789101112131415161718192021222324252627282930313233343536373839404142434445 xml version="1.0" encoding="UTF-8"?>content>url type="simple">url_head>http://www.oschina.net/tweetsurl_head>url_start>url_start>url_end>url_en

For beginners in PHP, it is not difficult to track links when writing crawlers, but it is useless if it is a dynamic page. Maybe analyze the Protocol (but how to analyze it ?), Simulate the execution of JavaScript scripts (how to get it ?),...... In addition, it is possible to write a common Spider to crawl AJAX pages... for beginners in PHP, it is not difficult to track links when writing crawlers, but it is useless if it is a dynamic page. Maybe an

In order to remember the whereabouts of Baidu spider, I wrote the following PHP functions: one is to judge the spider name, the other is to remember the spider to the file, you can take a look The code is as follows: Function write_naps_bot (){$ Useragent = get_naps_bot ();// EchoExit ($ useragent );If ($ useragent = "false") return FALSE;Date_default_timezone

The following is an example of a php imitation Baidu spider crawler program. I will not analyze this code if it is well written. if you need it, please refer to it. I wrote a crawler using PHP. The basic functions have been implemented. if you are interested, try the script. Disadvantages: 1... the following is an example of a php imitation Baidu spider crawler program. I will not analyze this code if it is

from/tmp/top_10_useragent.root.20161228.090725.308144/output ...85262"IE"79611"Chrome"48560" Other"10662"Firefox"7927"Mobile Safari Ui/wkwebview"7182"Sogou Explorer"6681"QQ Browser"1988"Mobile Safari"1781"Maxthon"1404"Edge"Removing temp directory/tmp/top_10_useragent.root.20161228.090725.308144 ...Spider:#!/usr/bin/env python#Coding=utf-8 fromMrjob.jobImportMrjob fromMrjob.stepImportMrstep fromNginx_accesslog_parserImportNginxlineparserImportHEAPQcla