Many studies have shown that the most satisfactory time for users to open a webpage is less than 2 seconds. The longest waiting period that the user can endure, in the range of 6 ~ Between 8 seconds. That is to say, 8 seconds is a critical value. If your website is opened for more than 8 seconds, most visitors will eventually leave you.
Google has performed a test. It takes 0.4 seconds to load 10 search results and 0.9 seconds to load 30 search results, as a result, Google's total traffic and
[It168 analysis comment]At present, millions of developers around the world are using Microsoft's. NET technology. If you are one of them or want to be one of them, all the sites I will list below should be your favorites and should be added to the bookmarks.
Not familiar. NET technology friends, need to explain ,. NET provides a platform and related tools that programmers can use to build highly interactive applications on Windows desktops, the Internet, and even handheld mobile devices. Most
50 principles for highly scalable websitesBasic InformationOriginal Title: scalability rules: 50 principles for scaling Web SitesAuthor: (US) Martin L. Abbott Michael T. FisherTranslator: Zhang Xin Yang hailingSeries name: Turing programming SeriesPress: People's post and telecommunications PressISBN: 9787115275721Mounting time:Published on: February 1, June 2012Start: 16Page number: 1Version: 1-1Category: Computer> Computer Network> Web Server> Compr
At present, millions of developers around the world are using Microsoft's. NET technology. If you are one of them or want to be one of them, all the sites I will list below should be your favorites and should be added to the bookmarks.
Not familiar. NET technology friends, need to explain ,. NET provides a platform and related tools that programmers can use to build highly interactive applications on Windows desktops, the Internet, and even handheld mobile devices. Most likely, one of your fav
include too many filesEffects implemented using JS are implemented using Js.Can be implemented on the client.The stored procedure is used by PAGE, and other stored procedures are used as much as possible.Use less resource-consuming controls to reduce sending backRemember to destroy the database connectionInstead of placing all the content in a large table, we try to use horizontal segmentation as a table.If you can use HTML, do not use Aspx.Do not use CS if Javascript is used.DataGrid is not ne
Common Anti-crawler and Countermeasures for websites
In our PREDICTION Article on the big data industry in 2016, "in 2016, big data will go down the altar and embrace the opportunities of life capital to favor entrepreneurship", we once mentioned that "in 2016, preventing website data crawling will become a business. ". Today, I found an article from "BSDR", which mainly introduces common anti-crawler methods. The following is the text.
Common Anti-C
A Web 2.0 website refers to converting a traditional website architecture (platform, content source, user, and Dissemination Mode) into a user-centered website architecture, it includes a series of elements, positioning, and creativity that reflect the concept of Web2.0. The Web website must embody two purposes in Architecture:Powerful background system and simple front-end pageThat is, to provide a good user experience, embody the people-oriented, technology to serve human purposes.
Common fu
I would like to introduce you to it websites outside China.
------------------------------------------1. CNET: the world's largest IT portal, focusing on industry news.
The slogan is tech news first (first choice for technology news ). The news is highlighted. First has both speed and depth. Major news and developments in the industry can be kept as fast and in-depth.
The website content is divided into six main sections: enterprise, e-business, comm
How does CSDN implement data synchronization and login for two websites ?) I encountered a problem in the hi project. I would like to hear from you that there are two websites: one is developed using asp.net, the other is mssql, and the other is php. the database is mysql. now we need to do this: the user data of the two websites is synchronized, that is, the use
[Editor's note] compared with the desktop end, users are increasingly accessing webpages from mobile devices, which is nothing new. However, developers still need to work hard to make the website better adapt to the current mobile devices. At the same time, we can see from the recent announcement by Google that, it may punish websites that cannot provide good user experience for mobile device users.
[Editor's note] compared with the desktop end, users
, it cannot be clearly divided. After all, the machine is not human, and it is more difficult to distinguish it.The other is selling links. In fact, Baidu has always been a hit, and the resolution method is relatively simple, that is, the number of exported links. However, how many links are exported? This Baidu has not given a definite number, and many SEO experts have stressed that they cannot export too many links. Even if they change friendship links, they should not change too many links. B
Http://www.aqee.net/programers-should-know-several-tech-websites/recently some readers have written to me that they like the article on this website, and also want to learn English through translation, They asked me where the English text of these articles was found. Foreign periodicals It commentary on the translation of the English source is very miscellaneous, I summed up, there are probably a few centralized sources, listed below for everyone to
This standardized document mainly targets the existing technologies and development directions of China's university work-study websites (hereinafter referred to as "work-study") and provides detailed standards for the development of website background programs, it is only for reference and learning by online programmers of zhongqin.
This document is divided into two parts: 1. Program Development standardization, which aims to standardize the standard
[IOS resource recommendation] books, videos, websites, blogs (Continuous updates), and ios resources I have read
Because many new users have the option phobia, I recommend as few items as possible.1. Video
Needless to say, Stanford University's tutorials are both authoritative and novel.
Open class at Stanford University: iOS 7 application development, which is OCHttp://v.163.com/special/opencourse/ios7.html
Open class at Stanford University: iOS
There are a large number of computers, technologies and other e-books to download, the speed is good, hope to help friends!
The purpose of reading books is usually two. One is to acquire knowledge, and the other is to entertain and relax. As the Internet develops, reading has gradually become a new digital media platform-ebook. In this article,We have collected 35 free English e-books for you to read online and provide free download websites,Do not m
Some websites collected by Ruby on Rails during this time. I personally feel good. If you are interested, please check them out.
Infoq
Codebetter
Napcsweb
Riding
Rails
Rubyonrails
Taoxi technology Diary
Rails framework technology lecture
Learning
Ruby
A free, web-based course in Ruby programming along with a live javasuctor.
On October 16, September 2005, the ASP. NET team released the first Community Technology Preview (CTP) for ASP. NET, codenamed "Atlas ). This feature extension of Microsoft. NET Framework 2.0 allows developers to easily create rich and interactive websites using both browser and server features.
This type of rich development supported by Atlas is collectively referred to as "Ajax" (Asynchronous JavaScript and XML). This is a newer acronym and represen
When developing projects, most of the modules are broken out word by word. However, with the development of open source, many outstanding open source projects have emerged, which not only accelerate application development, it can also inspire our development. If developers can flexibly apply these excellent open-source projects, it is also a wealth of knowledge. The following are some excellent websites I have organized. I believe they can help devel
Blockingqueue interface, which defines the blocking versions of Put and take: Linkedblockingqueue, Arrayblockingqueue, Synchronousqueue, Priorityblockingqueue and Delayqueue. These different classes cover the most common use contexts for producer-consumer, messaging, parallel task execution, and associated concurrency design.3. Synchronizer, four classes can assist in the implementation of common private synchronization statements. Semaphore is a classic concurrency tool. Countdownlatch is an e
suitable for the technical requirements of a large-scale educational website. The program language exposes security not enough, expansibility is poor, transplant is poor, code is confused and so on phenomenon. Making it almost impossible for developers to modify and update past programs, not to mention cross-platform applications; the Win2K and IIS 5.0 Web platforms are not stable enough to have a "machine" phenomenon that is too frequent; the Access database appears to be slow in retrieving la
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