user agent

Because of the popularity of search engines, web crawler has become a very popular network technology, in addition to the search Google,yahoo, Microsoft, Baidu, almost every large portal site has its own search engine, big and small called out the

Because of the popularity of search engines, web crawler has become a very popular network technology, in addition to the search Google,yahoo, Microsoft, Baidu, almost every large portal site has its own search engine, big and small called out the

The conclusion of requests on the Exceeded 30 redirects problem is exceededredirects. First, the conclusion is that the request to send requests must contain headers; otherwise, the session between bs cannot be maintained. The preceding error is

SIP (Session Initiation Protocol) Conversation Initiation Protocol is an application layer control (signaling) protocol for network telephony and conferencing. It is mainly a multimedia communication protocol based on IP network. It can realize the

As we know, search engines all have their own "Search robots" and use these robots to link on the Web page over the network (generally HTTP and SRC links) constantly crawl data to build your own database. For website administrators and content

Rfc3261 Chinese translation [version D] Parallel search: Parallel search. In parallel search, a proxy server sends multiple requests to a possible user location to receive the request response. Serial search: waits for the final response of the

This article mainly introduced in the nginx to intercept a specific user agent tutorial, and for these intercepted users to set a blacklist for easy management, the need for friends can refer to the The modern internet has spawned a vast array of

Looked up a lot of information, tried most of the methods, the following will be the efforts of the day to share to everyone, but also let everyone avoid reading so many articles, the following methods, are I personally test the success of the

5 ways to test mobile websites and simulate mobile browsers on your PC Source: Internet anonymous time: 03-19 10:14:54 "Big Small" Recently the company to develop the mobile version of the website, let me prepare to prepare knowledge, say I

Supplement the prohibition of search engines, Is the robots.txt file? A search engineProgramRobot (also known as Spider) automatically accesses webpages on the Internet and obtains webpage information. You can create a pure robot file

ArticleDirectory What do you want to do? Use the robots.txt file to intercept or delete Web page Printing The robots.txt file restricts the access to your website by the web-crawling search engine. These roaming bots are automatic.

The modern internet has spawned a vast array of malicious robots and web crawlers, such as malware bots, spam programs, or content scrapers, which have been surreptitiously scanning your site, doing things like detecting potential web sites,

The author's website experienced a wide range of attacks one night. According to post-event statistics, the attacker used about 0.5 million concurrent and sustained attacks on the website, it seems that the load on the website application server is

Looked up a lot of information, tried most of the methods, the following will be the efforts of the day to share to everyone, but also let everyone avoid reading so many articles, the following methods, are I personally test the success of the

First, chrome* browserThere are four ways in which the chrome analog phone works the same way, by disguising the user-agent and emulating the browser as an Android device. The following star is the recommended method.1. Create a new chrome

The performance interface provided by HTML5 precisely tells us the exact time (timestamp) of each processing stage of the current page when accessing a site page, so that we could conduct front-end analysis.It is a direct implementation of the

The performance interface provided by HTML5 accurately tells us the precise time (timestamp) of each processing phase of the current webpage when accessing a website page, so as to facilitate front-end analysis. It is a direct implementation of the

Support for browsers: Ie9 +, chrome11 +, and firefox7 +. Host Object window. performance. References: http://msdn.microsoft.com/zh-cn/office/ff975118 Reference W3C standard draft: http://w3c-test.org/webperf/specs/NavigationTiming/ Currently,

I. Specific issuesIn the process of development, found that some of the screen part of the picture display problems only show the placeholder image, take out the URL of the picture in the browser can open, a variety of attempts even to find friends

About the syntax and function of robots. txt As we know, search engines all have their own "Search robots" and use these robots to link on the Web page over the network (generally HTTP and SRC links) constantly crawl data to build your own database.