user agent

Article Title: analyze the HTTP server status code. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 1.1

Canonicalized search engine record and robots.txt File First, the file name is in the lower case of robots.txt, which is located in the root directory of the site, such as a web folder.The access path is http: // www. XX site. com/robots.txt Second,

Number Description 100 Continue 101 Switching protocols 200 OK 201 Created 202 Accepted 203 Non-authoritative information 204 NO content 205 Reset

What is the user agent? Anyone who understands how to create a web page should understand it. In short, the user agent is used to identify information such as the browser name, version, engine, and operating system. Therefore, the judgment of the

1. IIS Authentication overview... 3 1. Anonymous Access... 3 2. Integrated windows Authentication... 3 2.1. NTLM verification... 3 2.2. Kerberos verification... 3 3. Basic Authentication... 4 2. Anonymous Access... 4 Iii. Windows integration

You can create the robots.txt file under the website root directory to guide the search engine to include websites. Googlespider googlebotbaiduspider baiduspidermsnspider msnbotrobots.txt the writing syntax allows all robots to access User-agent: *

Capability Testingthe ability to detect a particular browser before writing code. For example, a script might have to detect the first payment of a function before calling it. This method frees developers from considering specific browser types and

3, how to hide the page to avoid being searched The search engines that we navigate on the Web use small programs---such as the ' robots ', ' bots ', ' crawlers ' and ' spiders '---We know to index the page. However, when developing a site,

Do you still remember the last time Maxthon changed the UA event? UA is a request sent by the browser to indicate its identity to the server. It not only allows the website to collect statistics on visitor browser information, on some websites,

If you cannot use UA for precise judgment, please list your scenario Reply content: If you cannot use UA for precise judgment, please list your scenario UA can be changed by the user on the browser side, so the server may not be able to get

UIWebView *webview = [[uiwebview alloc]initwithframe:cgrectzero]; NSString *myuseragent = [webView stringbyevaluatingjavascriptfromstring:@ " Navigator.useragent"]; iOS get WebView user-agent

Let's understand the stateless nature of the protocol by simply understanding some of the HTTP knowledge. Then, learn some basic things about cookies. Finally, I'll explain step-by-step how to use some simple, efficient ways to improve the security

The simplest robots.txt file uses two rules: User-agent: The roaming machine Disallow that applies the following rules: the URLs to be intercepted are regarded as one entry in the file. You can add any number of entries as needed. You can add

9.1 Capability Detection The most commonly used and most widely accepted is that the client detection form is capability detection (also called feature detection). The goal of competency detection is not to identify a particular browser, but to

1. Capability Detection: The goal of competency detection is not to identify a particular browser, but to identify the browser's capabilities. (My understanding is to identify what the browser can do and what not to do)2. Quirks Detection: The goal

Document directory Specify "User-Agent :" 3. Use "-H" to modify or add an HTTP Header 4. Specify "Referer :" 5. Get the returned HTTP Header Set the username and password in HTTP Basic Authentication 7. process HTTP Cookies 8. POST form

ArticleDirectory Limitations of iPad Development IPad User Detection: User Agent) Use W3C standard website Technology Limitations of iPad Development When using safari on an iPad to browse a webpage on a common website, the

1.1 Message1xx(Informational 1xx) This type of statusCodeUsed to indicate a temporary response. Temporary response by status line (Status-line) And optional titles. The title is terminated by a blank line.HTTP/1.0Does not define any1xxStatus Code,

Urllib module as a collection of components for Python 3 processing URLs, if you have knowledge of Python 2, then you will notice that Python 2 has urllib and urllib2 two versions of the modules, which are now Python 3 URLs LIB package is part of

Basic use of the URLLIB2 libraryThe so-called Web crawl, is the URL address specified in the network resources from the network stream read out, save to Local. There are many libraries in python that can be used to crawl Web pages, and we'll learn