June 28, 2004
Lowercase markup compresses more efficiently than uppercase markup. Along with the benefits of XHTML compatibility, lowercase markup allows
HTTP compression to work more efficiently by increasing redundancy. In this article we show the benefits of using lowercase markup on five popular sites.
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June 22, 2004
Sure you can
remove whitespace by hand, but why bother? A number of web page analysis and optimization tools are available that can help locate performance bottlenecks and automate whitespace and redundant code removal. But some tools don't stop there. You can optimize your JavaScript and images and even CSS with some of these tools. While no replacement for hand-tuned CSS-based pages, webpage optimization tools can give you a good start on your web page dietary plan.
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US broadband penetration grew by 0.74 percentage points in May, with 48.61% of active Internet users enjoying a high-speed connection at home. 51.39% of US home users dial into the Internet with "narrowband" connections of 56Kbps or less. Meanwhile, the percentage of wired US households with broadband grew to 38% in May, and will exceed 50% by summer 2005.
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June 14, 2004
Shorthand hex notation abbreviates 6-character RRGGBB CSS colors into 3-character RGB shorthand. Combined with
shorthand properties and
grouping, shorthand hexadecimal colors can shrink style sheets dramatically, often by 50%.
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June 7, 2004
You can
minimize HTTP requests by combining external CSS and JavaScript files. You can go even further by server-side including the remaining external files (with restrictions for XHTML due to its XML nature). One additional technique is to make those SSI work harder for you by serving up conditional content. Conditional server-side includes let you deliver different content based on environment variables sent by browsers to servers.
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June 1, 2004
A close cousin to
regional compression, blurring reduces higher frequency details for smaller JPEG images. Blurring smooths out abrupt color and tonal transitions, making the JPEG algorithm work more efficiently. The amount of savings depends on the amount of blurring, and can range anywhere from 5% to over 20%. The less detail there is in an image, the more efficient the compression.
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