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Healthcare.gov One Year Performance Review

After one year of improvements, how fast is the healthcare.gov website? While the site is more available, response times have slowed down by 62% to 78% over the past year. We offer some triaged recommendations to improve the speed of healthcare.gov. more »

Upgrade to a Faster Server

Upgrading to a faster server can improve web page speed significantly, up to 66% faster for first paint time and 29% for load times. We moved an example site to a faster server to test the performance improvements. more »

Wordpress Performance Optimization

Learn how to speed optimize Wordpress for faster web pages and ultimately better conversions and rankings. Optimized hosting, performance plugins and modules, profilers, and other tools and software can help you pinpoint performance bottlenecks and speed up your site. more »

Speedy Mobile Sites Impact Google Search Rankings

Google is now factoring in mobile friendliness and mobile website speed into their search engine rankings. more »

Use a Website Accelerator

Automated website acceleration products can speed up your site without developer intervention. We test the effectiveness of Radware's Fastview appliance on a test site and find significant improvements in speed. more »

Healthcare.gov Performance Review

This article evaluates the website performance issues of the healthcare.gov site, and offers some solutions to improve speed. A brief analysis shows a number of issues that could be addressed to improve the user experience. more »

Optimize Start Render Time

HCI guidelines say load useful content within 1-2 seconds, do your pages measure up? Learn how to optimize the start render time of your web pages to speed up useful content display. more »

Localize External Resources

Even popular offsite widgets can slow down or hang your web pages. Learn how to localize offsite resources to improve web page performance. more »

Average Number of Web Page Objects Breaks 100

The size and complexity of web pages has increased at an alarming rate. Despite increases in bandwidth, the load times of web pages has increased by 48% over the past two years. Reducing HTTP requests has become a critical skill in speeding up page load times. more »

Blocking JavaScript with Web Page Test

Learn how to simulate the elimination of JavaScript with Web Page Test. By eliminating, deferring or converting your JavaScript behavior into CSS you can speed up your page rendering and load times. more »

Use a Web Page 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 update our survey of the web page optimization tool landscape. more »

Velocity 2011 Web Performance Conference

Highlights from the 2011 installment of O'Reilly's Velocity web performance conference, held in Santa Clara, CA in June. The author sums up the tools and tips from the conference as well as a book signing. more »

Page Speed Online

The online version of Google's Page Speed browser extension features a new mobile web page analysis mode. more »

Serving 2012 Olympic Tickets: London2012 15, CoSport 0

The race is on to get tickets to the 2012 Summer Olympics in London, England. Are the web sites handing the traffic as fast as the athletes they promote? more »

Speed Optimizing Google Analytics

Learn how to speed up web pages that use Google Analytics with a few simple changes, while maintaining its advantages for faster-loading sites. more »

Automatically Speed Up Your Site with mod_pagespeed for Apache

mod_pagespeed is an open-source Apache module that automatically speeds up web sites. Through a number of filters, mod_pagespeed trims the fat off your HTML, CSS, JavaScript and images, reduces HTTP requests, and improves caching. In this article we introduce mod_pagespeed and summarize the available filters. more »

Velocity 2010 Web Performance Conference

Highlights from the Velocity 2010 conference on web performance. This sold-out event explored the latest technique for fast websites, and is a must-see for performance engineers. more »

Web Page Performance Thesis

A Ph.D. thesis on web page performance quantifies the key factors in web page response times. Uses software to measure, model, and monitor response times and improve user satisfaction. more »

O'Reilly Books on Web Performance

We sum up the available books on web performance from O'Reilly. more »

Use Delta Encoding to Compress RSS newsfeeds

Learn how to use delta encoding to compress your RSS XML newsfeeds. Save bandwidth by using delta compression for your RSS files. more »

Suture CSS or JavaScript Files to Reduce HTTP Requests

Learn how to "suture" CSS or JavaScript files together before delivery from the server to save HTTP requests. You'll have your organization and eat it too with this server-side approach to merging files. more »

Refactor to Improve Code Design

Refactoring restructures your code into a more simplified or efficient form in a disciplined way. Refactoring software code improves its internal structure without changing external functionality for more efficient execution, faster download speed, and easier updates. more »

CSS: Substitute CSS2 Menus

Substituting CSS2-styled lists for graphic menus and JavaScript can streamline your pages and make them more accessible. more »

JavaScript: Defer Execution

Defer execution of your JavaScripts with the defer attribute to speed initial content display. more »

JavaScript: Delay Loading

Delay loading your JavaScripts to speed up your content display. By redefining empty stub functions with scripts loaded late in your page, you can ensure that your content displays quickly. more »
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Last modified: November 19, 2014.

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