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home > speed > tweak > xhtml-optimization

Inline Images with Data URLs

Learn how to embed images into your web pages with data URLs. The data: URI scheme includes images directly into your XHTML pages using code instead of external files, saving valuable HTTP requests. more »

By website optimization on 28 Feb 2008 AM | | Comments (0)

CSS Sprites: How Yahoo.com and AOL.com Improve Web Performance

Learn how AOL and Yahoo! use CSS sprites to improve performance for their busy home pages. CSS sprites save HTTP requests by using CSS positioning to selectively display composite background images. To maximize accessibility and usability, CSS sprites are best used for icons or decorative effects. more »

By website optimization on 26 Sep 2007 AM | | Comments (6)

Highlight the Current Page with CSS: The Body ID/Class Method

This article shows how to automatically highlight menu items that correspond to the current page using CSS and XHTML. These "you are here" waypoints help orient users and improve usability. Using CSS avoids the need for complex scripting which simplifies maintenance and improves performance. more »

By website optimization on 30 Jun 2006 AM | | Comments (1)

Combine Images to Save HTTP Requests

Learn how to reduce the number of HTTP requests required by your web pages by combining adjacent images and optionally imagemapping the links. This tutorial shows both client and server side techniques you can use to save precious HTTP requests and speed up your site. more »

By website optimization on 31 May 2006 PM | | Comments (3)

Accessible CSS Forms: Using CSS to Create a Two-Column Layout

Websites have become less accessible and more complex over time according to recent studies. Learn how to buck the trend by creating fast, accessible CSS forms that work with modern browsers and gracefully degrade. more »

By website optimization on 30 Mar 2006 AM | | Comments (42)

Bookend Lists: Using CSS to Float a Masthead

Learn how to create that 'bookend' look with lists and CSS positioning. This CSS-layout technique saves a significant amount of XHTML code over tables. more »

By website optimization on 25 Feb 2006 AM | | Comments (9)

Cut the Comments

Eliminating comments within your HTML, CSS, and JavaScript code helps optimize your web pages for maximum speed. more »

By website optimization on 20 Sep 2004 PM | | Comments (0)

Size Images with Width and Height Attributes

Using width and height attributes on images ensures fast webpage display. Conserve bandwidth by using actual size for thumbnail images. more »

By website optimization on 7 Sep 2004 AM | | Comments (2)

Convert Graphic Text to Styled Text

Converting graphic text to CSS text speeds up your site, makes it more accessible, and search engine friendly. more »

By website optimization on 24 Aug 2004 PM | | Comments (5)

Use Short Relative URLs

Using short, relative urls saves space, speeds page display, and eases migration headaches. The little-used relative base element can save even more space. Learn how to avoid long URLs while making search engines and IAs happy. more »

By website optimization on 18 Jul 2004 PM | | Comments (0)

Abbreviate URLs with mod_rewrite

We look behind the screens at Yahoo and Webreference to see how using short abbreviated URLs and mod_rewrite can save space for maximum speed. more »

By website optimization on 13 Jul 2004 AM | | Comments (1)

Rewrite URLs with Content Negotiation

Content negotiation can make your URLs shorter and more abstract. By rewriting URLs without file extensions to the right resources you can save bytes and migration headaches. more »

By website optimization on 6 Jul 2004 AM | | Comments (1)

Use Lowercase Markup For Better Compression

You can improve HTTP compression by using all lowercase markup. We test five popular sites for improved compression. Remember, all characters are not created equal. more »

By website optimization on 28 Jun 2004 PM | | Comments (0)

Use an Optimization Tool

Web page analysis and optimization tools can help locate and minimize performance bottlenecks. They can improve accessibility, spelling, XHTML markup, and even search engine visibility. We survey the webpage optimization tool landscape. more »

By website optimization on 22 Jun 2004 PM | | Comments (0)

XHTML: Omit Redundant Classes and Default Attributes

Omitting redundant classes and default attributes shrinks xhtml code to speed page response times. Many tags and duplicate attributes can be safely removed with no change in appearance. more »

By website optimization on 18 Apr 2004 AM | | Comments (1)

XHTML: Layer Tables and Divs

By layering your content you can display useful content quickly to make your pages appear faster. Feedback can increase your users' pain threshold for delay. more »

By website optimization on 11 Apr 2004 PM | | Comments (0)

XHTML: Use Structural Markup

By using purely structural XHTML markup you can easily target your content with CSS selectors. more »

By website optimization on 4 Apr 2004 AM | | Comments (0)