Performance web sites

Xem 1-20 trên 43 kết quả Performance web sites
  • “If everyone would implement just 20% of Steve’s guidelines, the Web would be a dramatically better place. Between this book and Steve’s YSlow extension, there’s really no excuse for having a sluggish web site anymore.” — Joe Hewitt, Developer of Firebug debugger and Mozilla’s DOM Inspector “Steve Souders has done a fantastic job of distilling a massive, semi-arcane art down to a set of concise, actionable, pragmatic engineering steps that will change the world of web performance.” — Eric Lawrence, Developer of the Fiddler Web Debugger, Microsoft Corporation ...

    pdf170p hoa_can 29-01-2013 30 8   Download

  • Performance is critical to the success of any web site, and yet today's web applications push browsers to their limits with increasing amounts of rich content and heavy use of Ajax. In this book, Steve Souders, web performance evangelist at Google and former Chief Performance Yahoo!, provides valuable techniques to help you optimize your site's performance. Souders' previous book, the bestselling High Performance Web Sites, shocked the web development world by revealing that 80% of the time it takes for a web page to load is on the client side....

    pdf256p trac2_123 16-04-2013 32 5   Download

  • In this chapter, the learning objectives are: Describe the major issues surrounding the decision to outsource site development and/or hosting, Identify and understand the major considerations involved in choosing web server and e-commerce merchant server software, understand the issues involved in choosing the most appropriate hardware for an e-commerce site, identify additional tools that can improve Web site performance.

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  • In this chapter, the learning objectives are: Understand the issues involved in choosing the most appropriate hardware for an e-commerce site, rightsizing hardware platforms for the site, rightsizing e commerce connections, identify additional tools that can improve Web site performance.

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  • “If everyone would implement just 20% of Steve’s guidelines, the Web would be a dramatically better place. Between this book and Steve’s YSlow extension, there’s really no excuse for having a sluggish web site anymore.” — Joe Hewitt, Developer of Firebug debugger and Mozilla’s DOM Inspector

    pdf170p tienquy12a1 03-12-2010 58 11   Download

  • Web 2.0 Ajax portals are among the most successful web applications of the Web 2.0 generation. iGoogle and Pageflakes are the pioneers in this market and were among the first to show Ajax’s potential. Portal sites give users a personal homepage with one-stop access to information and entertainment from all over the Web, as well as dashboards that deliver powerful content aggregation for enterprises. A Web 2.0 portal can be used as a content repository just like a SharePoint or DotNetNuke site. Because they draw on Ajax to deliver rich, client-side interactivity, Web 2.

    pdf310p ht22_pt 20-10-2009 460 212   Download

  • This book is about the structure and function of computers. Its purpose is to present, as clearly and completely as possible, the nature and characteristics of modern-day computer systems. This task is challenging for several reasons. First, there is a tremendous variety of products that can rightly claim the name of computer, from single-chip microprocessors costing a few dollars to supercomputers costing tens of millions of dollars. Variety is exhibited not only in cost, but also in size, performance, and application....

    pdf0p hiepkhach_1006 19-09-2013 42 4   Download

  • Any organization that has a searchable web site or intranet is sitting on top of hugely valuable and usually under-exploited data: logs that capture what users are searching for, how often each query was searched, and how many results each query retrieved. Search queries are gold: they are real data that show us exactly what users are searching for in their own words. This book shows you how to use search analytics to carry on a conversation with your customers: listen to and understand their needs, and improve your content, navigation and search performance to meet those needs....

    pdf372p rose_12 06-12-2012 24 3   Download

  • To get the most out of this book, please take the time to read these next few pages. I'll discuss how the book came into being, who the intended audience is, and what you can expect to learn. By reviewing these items, you'll know quickly when your expectations will be met and which portions of the book may be useful as a quick reference if you need to dive into a specific segment first before starting with Chapter 1. This book was born out of the frustration of reading other texts on HTML and Web design and being told repeatedly that one had to perform...

    pdf346p batoan 04-08-2009 218 96   Download

  • This module provides students with the knowledge and skills to administer Web sites. After completing this module, students will be able to: Manage File Transfer Protocol (FTP) and Web Distributed Authoring and Versioning (WebDAV) content. Perform remote administration by using the Microsoft® Internet Information Services (IIS) 5.0 snap-in and Internet Services Manager (HTML). Manage the IIS metabase. Administer sites by using built-in scripts. Restart Internet services by using the IIS snap-in and the iisreset command....

    pdf48p vuthuong 11-08-2009 75 23   Download

  • Master the awesome Web power of DHTML, style sheets and Netscape JavaScript 1.2/1.3! Dynamic HTML and JavaScript brings together a complete task-oriented tutorial, a detailed JavaScript syntax reference, and a library of 400+ working examples that show exactly how to build innovative Web sites with Netscape's hottest technologies. Hands-on and comprehensive, Dynamic HTML and JavaScript lets you break through Web clutter -- and create the great-looking, top-performing sites you've always wanted to build.

    pdf1164p trasua_123 05-01-2013 57 20   Download

  • It is not an exhaustive reference but rather a small collection of guidelines on how javascript code should be written. The book touches on the major aspects of the language: objects, functions, prototypes, inheritance (with all its flavours), arrays and regular expressions. Maybe the most important part of the language is given the most pages: functions. The chapter on functions gives a good understanding on function invocation patterns, on closures, callbacks, scope, augmentation, memoization, currying and function arguments....

    pdf172p stingdau_123 26-01-2013 47 17   Download

  • EGovernment means different things for different people. Some simply d efine it as digital governmental information or a way of engaging in digital transactions with customers. For others eGovernment simply consists of the creation of a web site where information about political and governmental issues is presented. These narrow ways of defining and conceptualizing eGovernment restrict the range of opportunities it offers.

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  • This addresses the bandwidth problem, in a way: A web site owner will certainly service fewer RSS requests as end users start polling the central service instead. The operators of these central services will definitely have bandwidth issues of their own: they will now be at the center of all RSS traffic. There is a far more insidious danger inherent in this approach, however: a central point of control, failure, and censorship has now been established for all partici- pating users.

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  • The London network administrator informs you that there is no WAN connectivity. ISDN connectivity has been lost between London and San Jose. After some investigation you contact the San Jose administrator. Based on logs maintained in San Jose, there has not been a successful ISDN session since yesterday when a security audit was performed. Though International Travel Agency (ITA) does not rely on sensitive “topsecret” information, the database of customer information has to be kept confidential. Also, the integrity of the reservation systems is mission-critical.

    pdf1p thutrang 28-08-2009 68 3   Download

  • Yahoo! frontend engineer Nicholas C. Zakas and five other JavaScript experts -- Ross Harmes, Julien Lecomte, Steven Levithan, Stoyan Stefanov, and Matt Sweeney -- demonstrate optimal ways to load code onto a page, and offer programming tips to help your JavaScript run as efficiently and quickly as possible. You'll learn the best practices to build and deploy your files to a production environment, and tools that can help you find problems once your site goes live.

    pdf231p trasua_123 05-01-2013 22 3   Download

  • Performance is a hugely important area of web development. If your site runs slowly, users are going to leave, and the problem only grows as your site gets more popular. Pro JavaScript Performance gives you the tools you need to keep your sites smooth and responsive no matter how many users you have.

    pdf219p caucaphung 04-02-2013 25 3   Download

  • As mobile usage continues to increase, service providers are faced with the challenge of optimizing and expanding their wireless networks to provide new and existing services. ADC’s ClearGain® Cell Site Amplifiers minimize the cost of network expansion and improve quality of service (QoS), allowing service providers to increase profitability. ClearGain Cell Site Amplifiers improve signal quality by boosting the uplink signal of a mobile system to increase receiver performance and improve overall coverage....

    pdf10p maiphuong 14-08-2009 48 2   Download

  • Fundamental to the design of reliable, high-performance network services is an understanding of the performance characteristics of the service as perceived by the client population as a whole. Understanding and measuring such end-to-end service performance is a challenging task. Current techniques include periodic sampling of service characteristics from strategic locations in the network and instrumenting Web pages with code that reports client-perceived latency back to a performance server.

    pdf45p bin_pham 05-02-2013 24 2   Download

  • Tham khảo bài thuyết trình 'module 13p: implementing isa server 2004 enterprise editionsite-to-site vpn scenario', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    ppt10p nhqkhtn 24-08-2013 30 2   Download

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