O'Reilly Answers

Topics: optimization

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  How to Load JavaScript Wisely to Speed Up Web Pages

  

  By simonstl

  External scripts referenced in the head of your pages are especially harmful because they delay the display of your body content. Delays before your body content displays make it more likely that user...

  Yesterday, 05:16 PM | 0 Comments
  Tags:

  • html
  • css
  • javascript
  • web
  • optimization
  • speed
  • WEDJE

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  Minimize Initial Display Time to Improve Perceived Web Page Speed

  

  By simonstl

  You can improve the perceived speed of your web page by loading something useful fast. For example, the Weather Underground home page displays the weather search form quickly in the top-left corner o...

  Yesterday, 05:11 PM | 0 Comments
  Tags:

  • html
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  • javascript
  • web
  • optimization
  • speed

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  Replace Inline Style with CSS Rules to Speed Up Web Pages

  

  By simonstl

  Replacing table layout with CSS layout certainly saves you bandwidth and reduces maintenance headaches. Stripping down your markup to bare structure and replacing any inline style with CSS rules will ...

  Yesterday, 05:07 PM | 0 Comments
  Tags:

  • html
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  • web
  • optimization
  • speed
  • styles

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  Convert Table Layouts to CSS Layouts to Speed Up Web Pages

  

  By simonstl

  Using CSS to lay out your page can save you a significant amount of markup, typically 25% to 50%.1 First look at the layout to see whether you can substitute CSS lists and positioned divs to simulate ...

  Yesterday, 05:02 PM | 0 Comments
  Tags:

  • html
  • css
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  • web
  • optimization
  • speed
  • layout
  • tables

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  Optimize JavaScript to Speed Up Web Pages

  

  By simonstl

  After replacing as much Javascript as possible with CSS and server-side techniques, optimize any remaining Javascript to minimize file size. You can use abbreviated object, variabl...

  Yesterday, 04:58 PM | 0 Comments
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  • html
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  • web
  • optimization
  • speed

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  How to Use Server-Side Sniffing to Speed Up Web Pages

  

  By simonstl

  Browser sniffing is one area where Javascript is in widespread use. To minimize the Javascript overhead that your users must download, you can substitute server-side or PHP and JSP...

  Yesterday, 04:08 PM | 0 Comments
  Tags:

  • html
  • css
  • javascript
  • web
  • optimization
  • speed
  • server
  • sniffing

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  Convert JavaScript Behavior to CSS to Speed Up Web Pages

  

  By simonstl

  Embedded Javascript is widely used on the Web, with 84.8% of pages using some Javascript. Javascript is used for form validation, menus and rollovers, browser sniffing, ...

  Yesterday, 03:57 PM | 0 Comments
  Tags:

  • html
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  • web
  • optimization
  • speed

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  How to Optimize Multimedia to Speed Up Web Pages

  

  By simonstl

  Multimedia makes up only a small portion of server requests but accounts for the majority of traffic on the Internet. So, the optimization of streaming media—and movies in particular—has become mo...

  Yesterday, 03:52 PM | 0 Comments
  Tags:

  • html
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  • web
  • optimization
  • speed
  • multimedia
  • video

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  How to Resize and Optimize Images to Speed Up Web Pages

  

  By simonstl

  More megapixels! That is what digital camera manufacturers are hawking these days. As a consequence of this pixel pushing, photographs destined for the Web have become larger in size and higher in...

  Yesterday, 02:42 PM | 0 Comments
  Tags:

  • html
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  • javascript
  • web
  • optimization
  • speed
  • images
  • compression
  • resize

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  How to Minimize HTTP Requests to Speed Up Web Pages

  

  By simonstl

  Each unique object in a web page requires a round trip to the server, that is, an HTTP request and a reply. Each object introduces indeterminate delays. As you learned in the introduction to Part II, ...

  Yesterday, 02:28 PM | 0 Comments
  Tags:

  • html
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  • javascript
  • web
  • optimization
  • speed
  • http requests

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