status code 200

The role of cachingUsers access a Web page more often than the frequency of Web page updates, so most of the time users get from the server HTML, JS, CSS and pictures and other content is the same, if each access from the server to obtain these

Both frontend and backend services will deal with HTTPHeaders from time to time, and understanding it will undoubtedly be of great help to Web development. This article will allow me to learn about httpheaders. What is HTTP Headers? HTTP is written

This article systematically describes HTTP headers in a concise and easy-to-understand manner.What is HTTP headers? HTTP is written by "Hypertext Transfer Protocol". This protocol is used throughout the world wide web. Most of the content you see in

Network Scanning and sniffing tool Nmap in the penetration test tutorial of KailLinuxNetwork Scanning and sniffing tool Nmap Network scanning and sniffing tool-NmapNmap is a free and open Network scanning and sniffing tool. This tool can scan hosts

Disable IIS from caching static files (PNG, JS, HTML, etc.) Background:To improve the performance of IIS, static files such as JS, HTML, GIF, and PNG are cached internally by default. This cache is in the memory of the IIS Process on the server. To

Httresponsemessage is returned as a message in Webapi, and in Apicontroller we often speak four classes of data as return values, Void,object (serializable), Ihttpactionresult, Httpmessage,void and ObjectVoid: Return status Code 200, no dataObject:

PHP checks whether the website can be opened normally. this is a PHP code that checks whether the website can be opened normally. the following code checks whether a website can be accessed normally, if it is normal, the value of http status code 200

It is often necessary to determine whether a file can be accessed. you can identify it through the http status code. 200 indicates normal access, and 404 indicates that the page cannot be found. The code is as follows :? Php sets url $ urlnb.... you

We often encounter 404, 500, 302 and other hints, what exactly do they mean? In addition to these common status codes, what are some of the possible status codes that we have not encountered yet? Here I made a summary, share with you. HTTP Status

HTTP network library is a powerful class library which integrates XML parsing, JSON parsing, network image downloading, plist parsing, data flow request operation, uploading, downloading, caching and so on. The latest version supports Session,xctool

Nsurlconnection Four steps to use:1, Prepare Url-nsurl2. Create Request-Nsrequest3. Sending requests (including asynchronous and synchronous)4. Callback1 //4 ways to create a request:2 //MARK:-Scenario One: Create Request object (default

Conditional Request If-modified-since/if-unmodified-since/if-none-match/if-match/if-range for HTTP If-modified-sinceis a standard HTTP request header tag that, when sending an HTTP request, sends the last modification time

Respect the original spirit of the blog Park, please do not reprint!Requests Library Official user's manual address: http://www.python-requests.org/en/master/; Chinese user's manual address: http://cn.python-requests.org/zh_CN/latest/;Requests

The preface introduces the access log and error log under Apache server. View and simple analysis then this article describes the two kinds of log views on the Nginx server. Find Log Store Address Find/-name nginx.conf According to the address

Preface Http caching mechanism as an important means of Web performance optimization, for the students engaged in web development, should be a knowledge system library of a basic link, at the same time for aspiring to become a front-end architect

Now, in order to save money, I use shell scripts and write a monitoring script. The status code 200 of a fixed page through curl. if it is 200, the website is normal. if it is not 200, the website is automatically restarted and then sent to the QQ

The http status of a website is very important for website maintenance personnel. When a website encounters a problem, we must first diagnose the http status of the website, so as to further confirm where the problem occurs, we often encounter

Import Urllib2import jsondef get_all_switches (): url = "http://127.0.0.1:8080/v1.0/topology/switches" req = urllib2. Request (URL) res_data = Urllib2.urlopen (req) res = Res_data.read () res = json.loads (res) return resdef Get_all _links (): url =

HTTP network library is a powerful class library which integrates XML parsing, JSON parsing, network image downloading, plist parsing, data flow request operation, uploading, downloading, caching and so on. The latest version supports Session,xctool

Tag: Stat One URL does not have Help alert string OSC responseSimple description:Comet is a server push implemented with Ajax, there are two ways to implement comet, long polling and streaming, where only long polling is implemented.Long polling