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#Html optimizer same html select pro#
#Html optimizer same html select code#

WebTrimmer PC-based optimization program for HTML. Optimizes XHTML, CSS, ASP, and CFM files.

#Html optimizer same html select code#

w3compiler Windows-based source code optimizer from Port80 Software. VSE Web Site Turbo Mac-based web page optimizer. SpaceAgent Insider Labs offers client and server-based web page optimization programs.

#Html optimizer same html select pro#

HTML Optimization Programs and Services HTML Optimizer Pro Tonbrand Software offers a range of optimizers capable of optimizing HTML, XHTML, JavaScript, VBScript, CFScript, Java, CSS, PHP, ASP, JSP, CSP and LassoScript. In January 2002, this study showed that the average "base page" size (HTML) of the top 40 e-business web sites was 28,537 bytes, with a content size of 44,191 and a total size averaging 72,802 bytes composed of 21 objects. A Performance Analysis of 40 e-Business Web Sites Patrick Mills and Chris Loosley, CMG Journal of Computer Resource Management, no. Explains why CNET's had only four graphics on their home page in 1998. More Great Tips from CNET Designers Matt Rosoff, (CNET Networks, 1998). Improperly nested HTML can cause problems with dynamically written JavaScripts. JavaScripting Netscape 6: No More Sloppy Code Andrew King, (Jupitermedia Corporation, 2001). Radical reductions in file size with no-holds barred techniques. Extreme HTML Optimization Andrew King, (Jupitermedia Corp., 2001). Shows the evolution of 's home page over time, and the techniques we used to speed it up. Evolution of a Home Page Andrew King, (Jupitermedia Corporation, 2001). Article Highlights Almost Standards Mode Mozilla's handling of DOCTYPE. Chuck Musciano and Bill Kennedy, (O'Reilly, 2002). HTML & XHTML: The Definitive Guide, 5th ed.

Designing Web Usability: The Practice of Simplicity Jakob Nielsen, (New Riders, 2000). Cascading Style Sheets: The Definitive Guide Eric A. Conditionally include meta tags for critical pages.įurther Reading Books Cascading Style Sheets: Separating Content from Presentation Owen Briggs, Steve Champeon, Eric Costello, and Matthew Patterson, (glasshaus, 2002).Use only the description and keywords tags.Minimize the head to maximize body display speed.Minimize ALT values, but make them descriptive, not generic.Minimize colors and character entities.Omit optional quotes and closing tags (this can violate HTML/XHTML).Remove whitespace (spaces, tabs, and returns).Minimize HTTP requests: convert graphic text to text and consolidate.Use a strict DTD to enable standards mode for maximum rendering speed.Yahoo! saves 3% by omitting quotes from their links. with quotes (Zipped, 16,360 bytes HTML) without quotes (Zipped, 15,869 bytes HTML). Figures 3.1 and 3.2 HTML Minimizing HTTP requests at. A Brief Homepage Survey (Excel, 14K) Five of the busiest sites examined from 1996 to 2002 found that total page size has increased from 40,223 bytes to 86,234 bytes from Oct. Figure 3.2 - after optimizationĬode Listings etc.Figure 3.1 - prototype with graphic rollovers.Let’s take a look at a fairly simple layout with three breakpoints. The width that images render at is layout-dependent rather than just viewport dependent!

The sizes attribute describes the width that the image will display within the layout of your specific site, meaning it is closely tied to your CSS. Demo Creating accurate sizesĬreating sizes attributes can get tricky.

Without this information, browsers can’t make smart choices. Using srcset with width ( w) descriptors like this means that it will need to be paired with the sizes attribute so that the browser will know how large of a space the image will be displaying in. So if baby-s.jpg is 300×450, we label it as 300w. But instead of labeling them with a pixel density ( x) we’re labelling them with their resource width, using w descriptors. We’re still providing multiple copies of the same image and letting the browser pick the most appropriate one. Perhaps the easiest-possible responsive images syntax is adding a srcset attribute with x descriptors on the images to label them for use on displays with different pixel-densities. You could try to serve entirely different images using this syntax, but browsers assume that everything in a srcset is visually-identical and will choose whichever size they think is best, in impossible-for-you-to-predict ways. The syntax is for serving differently-sized versions of the same image.

What about responsive images in CSS with background images?.

Where do you get the differently-sized images?.

There is a lot to talk about here, so let’s go through both syntaxes, all of the related attributes and values, and talk about a few related subjects along the way, like tooling and browsers.