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当前开源Crawler以及主要商用Crawler介绍

当前开源Crawler以及主要商用Crawler介绍    Spider是搜索引擎的必须模块.spider数据的结果直接影响到搜索引擎的评价指标.第一个spider程序由MIT的Matthew K Gray操刀该程序的目的是为了统计互联网中主机的数目.    Spier定义(关于Spider的定义,有广义和狭义两种).
        狭义:利用标准的http协议根据超链和web文档检索的方法遍历万维网信息空间的软件程序.
        广义:所有能利用http协议检索web文档的软件都称之为spider.
其中Protocol Gives Sites Way To Keep Out The ,Bots Jeremy Carl, Web Week, Volume 1, Issue 7, November 1995 是和spider息息相关的协议,大家有兴趣参考robotstxt.org.
Heritrix
Heritrix is the Internet Archive′s open-source, extensible, web-scale, archival-quality web crawler project.
Heritrix (sometimes spelled heretrix, or misspelled or missaid as heratrix/heritix/ heretix/heratix) is an archaic word for heiress (woman who inherits). Since our crawler seeks to collect and preserve the digital artifacts of our culture for the benefit of future researchers and generations, this name seemed apt.
语言:JAVA
WebLech URL Spider
WebLech is a fully featured web site download/mirror tool in Java, which supports many features required to download websites and emulate standard web-browser behaviour as much as possible. WebLech is multithreaded and comes with a GUI console.
语言:JAVA
JSpider
A Java implementation of a flexible and extensible web spider engine. Optional modules allow functionality to be added (searching dead links, testing the performance and scalability of a site, creating a sitemap, etc ..
语言:JAVA
WebSPHINX
WebSPHINX is a web crawler (robot, spider) Java class library, originally developed by Robert Miller of Carnegie Mellon University. Multithreaded, tollerant HTML parsing, URL filtering and page classification, pattern matching, mirroring, and more...
语言:JAVA
PySolitaire
PySolitaire is a fork of PySol Solitaire that runs correctly on Windows and has a nice clean installer. PySolitaire (Python Solitaire) is a collection of more than 300 solitaire and Mahjongg games like Klondike and Spider.
语言ython
The Spider Web Network Xoops Mod Team
The Spider Web Network Xoops Module Team provides modules for the Xoops community written in the PHP coding language. We develop mods and or take existing php script and port it into the Xoops format. High quality mods is our goal.
语言:php
Fetchgals
A multi-threaded web spider that finds free porn thumbnail galleries by visiting a list of known TGPs (Thumbnail Gallery Posts). It optionally downloads the located pictures and movies. TGP list is included. Public domain perl script running on Linux.
语言:perl
Where Spider
The purpose of the Where Spider software is to provide a database system for storing URL addresses. The software is used for both ripping links and browsing them offline. The software uses a pure XML database which is easy to export and import.
语言ML
Sperowider
Sperowider Website Archiving Suite is a set of Java applications, the primary purpose of which is to spider dynamic websites, and to create static distributable archives with a full text search index usable by an associated Java applet.
语言:Java
SpiderPy
SpiderPy is a web crawling spider program written in Python that allows users to collect files and search web sites through a configurable interface.
语言ython
Spidered Data Retrieval
Spider is a complete standalone Java application designed to easily integrate varied datasources. * XML driven framework * Scheduled pulling * Highly extensible * Provides hooks for custom post-processing and configuration
语言:Java
webloupe
WebLoupe is a java-based tool for analysis, interactive visualization (sitemap), and exploration of the information architecture and specific properties of local or publicly accessible websites. Based on web spider (or web crawler) technology.
语言:java
ASpider
Robust featureful multi-threaded CLI web spider using apache commons httpclient v3.0 written in java. ASpider downloads any files matching your given mime-types from a website. Tries to reg.exp. match emails by default, logging all results using log4j.
语言:java
larbin
Larbin is an HTTP Web crawler with an easy interface that runs under Linux. It can fetch more than 5 million pages a day on a standard PC (with a good network).
语言:C++


    高强度爬虫程序
Baiduspider+(+http://www.baidu.com/search/spider.htm) 百度爬虫 高强度爬虫，有时会从多个IP地址启动多个爬虫程序！http://help.yahoo.com/help/us/ysearch/slurp) 雅虎爬虫，分别是雅虎中国和美国高强度爬虫程序
Baiduspider+(+http://www.baidu.com/search/spider.htm)
百度爬虫
高强度爬虫，有时会从多个IP地址启动多个爬虫程序！
由于算法问题，百度爬虫对相同页面会多次发出请求（尤其是首页），令人烦恼。
推广效果好。

http://help.yahoo.com/help/us/ysearch/slurp)
雅虎爬虫，分别是雅虎中国和美国总部的爬虫
高强度爬虫，有时会从多个IP地址启动多个爬虫程序！
比较规范的爬虫，看参考其网址，设定爬虫访问间隔。（但需要考虑同时出现多个yahoo爬虫）
推广效果尚可。
iaskspider/2.0(+http://iask.com/help/help_index.html)
新浪爱问爬虫
算法差，大量扫描无实际意义的页面，对动态链接网站负担很大
推广效果差。
sogou spider
搜狗爬虫
算法差，大量扫描无实际意义的页面，对动态链接网站负担很大
推广效果差。

中等强度爬虫程序
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Google爬虫
算法优秀，多为访问有实际内容的页面
推广效果好。

Mediapartners-Google/2.1
google点击广告爬虫
特点未知
OutfoxBot/0.5 (for internet experiments; http://; gmail.comoutfoxbot@gmail.com" target="_blank">outfoxbot@gmail.comoutfoxbot@gmail.com )


网易爬虫
其搜索算法需要改进
推广效果差。 
Alexa排名爬虫
作用未知

其他搜索引擎的爬虫
msnbot/1.0 (+http://search.msn.com/msnbot.htm)
MSN爬虫
特点未知
msnbot-media/1.0 (+http://search.msn.com/msnbot.htm) 

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; QihooBot 1.0)
名字上看来是Qihoo的
特点未知

Gigabot/2.0 (http://www.gigablast.com/spider.html)

Gigabot搜索引擎爬虫。已被google收购？

eApolloBot/1.0 (eApollo search engine robot; http://www.eapollo.com/; eapollo at global-opto dot com)
lanshanbot/1.0
据说是中搜爬虫。
iearthworm/1.0, yahoo.com.cniearthworm@yahoo.com.cn" target="_blank">iearthworm@yahoo.com.cniearthworm@yahoo.com.cn