Google Developers Blog: mod

mod_spdy is now an Apache project

Thursday, June 19, 2014

By Matthew Steele, PageSpeed Insights TeamlaunchedApache Web ServerSPDY protocolIETFHTTP/2.0now a part “The intent is to work on making it fully part of [Apache] 2.4 and, of course, a core part of 2.6/3.0” - Jim Jagielski, co-founder of the ASF. Matthew Steele is a Software Engineer on the Google PageSpeed Insights Team in Cambridge, MA. He and his team focus on developing tools to help site owners make their sites faster and more usable.Posted by Louis Gray, Googler

Making your site more mobile-friendly with PageSpeed Insights

Monday, May 19, 2014

By Matthew Steele and Doantam Phan, PageSpeed Insights Teamthe Google Webmaster Blog To help developers and webmasters make their pages mobile-friendly, we recently updated PageSpeed Insights with additional recommendations on mobile usability.

Poor usability can diminish the benefits of a fast page load. We know the average mobile page takes more than 7 seconds to load, and by using the PageSpeed Insights tool and following its speed recommendations, you can make your page load much faster. But suppose your fast mobile site loads in just 2 seconds instead of 7 seconds. If mobile users still have to spend another 5 seconds once the page loads to pinch-zoom and scroll the screen before they can start reading the text and interacting with the page, then that site isn’t really fast to use after all. PageSpeed Insights’ new User Experience rules can help you find and fix these usability issues. These new recommendations currently cover the following areas:

Configure the viewport: Without a meta-viewport tag, modern mobile browsers will assume your page is not mobile-friendly, and will fall back to a desktop viewport and possibly apply font-boosting, interfering with your intended page layout. Configuring the viewport to width=device-width should be your first step in mobilizing your site.

Size content to the viewport: Users expect mobile sites to scroll vertically, not horizontally. Once you’ve configured your viewport, make sure your page content fits the width of that viewport, keeping in mind that not all mobile devices are the same width.

Use legible font sizes: If users have to zoom in just to be able read your article text on their smartphone screen, then your site isn’t mobile-friendly. PageSpeed Insights checks that your site’s text is large enough for most users to read comfortably.

Size tap targets appropriately: Nothing’s more frustrating than trying to tap a button or link on a phone or tablet touchscreen, and accidentally hitting the wrong one because your finger pad is much bigger than a desktop mouse cursor. Make sure that your mobile site’s touchscreen tap targets are large enough to press easily.

Avoid plugins: Most smartphones don’t support Flash or other browser plugins, so make sure your mobile site doesn't rely on plugins.

These rules are described in more detail in our help pages. When you’re ready, you can test your pages and the improvements you make using the PageSpeed Insights tool. We’ve also updated PageSpeed Insights to use a mobile friendly design, and we’ve translated our documents into additional languages.As always, if you have any questions or feedback, please post in our discussion group.
Posted by Louis Gray, Googler

Speeding up mobile pages with mod_pagespeed and ngx_pagespeed

Thursday, November 7, 2013

By Jan-Willem Maessen, Software Engineermod_pagespeedngx_pagespeed

prioritize_critical_css finds the CSS rules that are used to initially render your page.

The critical image beacon identifies the images that appear on screen when your page is first rendered and uses this to guide lazyload_images and inline_preview_images.

defer_javascript prevents scripts from running until the page has loaded.

convert_jpeg_to_webp reduces the size of images that are downloaded by webp-capable browsers.

What happens when you turn on these optimizations

image optimization filterEnabling these optimizationsdownload ModPagespeedEnableFilters prioritize_critical_css,defer_javascript ModPagespeedEnableFilters convert_jpeg_to_webp ModPagespeedEnableFilters lazyload_images,inline_preview_imagesinstall from the latest source pagespeed EnableFilters prioritize_critical_css,defer_javascript; pagespeed EnableFilters convert_jpeg_to_webp; pagespeed EnableFilters lazyload_images,inline_preview_images;?ModPagespeed=off?ModPagespeedFilters=coredefer_javascriptlazyload_imagesConclusionhttps://code.google.com/p/modpagespeed/mod-pagespeed-discuss@googlegroups.comJan-Willem Maessen is a Software Engineer on the PageSpeed team, and helped build many of the optimizations including the ones you see here. He's been known to hit otherwise reasonable consenting software engineers about the head with a steel longsword.Posted by Scott Knaster, Editor

SiteGround, IISpeed and Google Chrome make the web faster with PageSpeed

Thursday, March 21, 2013

By Ilya Grigorik, Developer Advocate and Web Performance EngineerMake the Web FasterSiteGroundannounced mod_pagespeed supportSuperCacher plugin is the first and only plugin that fully integrates Google’s mod_pagespeed with cPanel. Simply put, mod_pagespeed speeds up your site and reduces page load time automatically, with no additional knowledge required on the users’ side. It also optimizes your website for mobile view and for better browser rendering.

advanced customizations

The We-AMP team has announced a beta release of IISpeed, which enables PageSpeed web content optimization within the Microsoft IIS web server. "IIS and ASP.NET are very popular technologies on the web, powering millions of websites, and we are excited to bring the full power of PageSpeed optimization to the Windows platform," said Otto van der Schaaf and Kees Spoelstra.

Thanks to open-source contributions, mod_pagespeed is now integrated with CPanel and WHM, an easy-to-use server control and management panel for web hosts and website owners.

Google Chrome has adapted PageSpeed to power the recently announced Chrome data compression proxy, which significantly reduces data usage and speeds up page load times on cellular networks.

PageSpeed siteIlya Grigorik is a Developer Advocate and Web Performance Engineer at Make the Web Faster.Posted by Scott Knaster, Editor

New mod_pagespeed: cache advances, progressive JPEGs

Wednesday, December 19, 2012

Bharath

Jan-Willem

Joshua

By Joshua Marantz, Jan-Willem Maessen, and Bharath Bhushan, PageSpeed Teamexploit browser cachingcanonicalize_javascript_librariesinsert_dns_prefetchYour web page loads faster when JQuery is preloaded in users' browsercanonicalize_javascript_librariesajax.googleapis.comcanonicalize_javascript_librariesResolving DNS entries early for critical assets saves hundreds of milliseconds

insert_dns_prefetch<link rel="dns-prefetch">

Scaling automatic web optimization with mod_pagespeed and memcached

Monday, November 12, 2012

By Jud Porter, Software Engineer, PageSpeed Teammod_pagespeedApache1.0 releasememcached

Improved CSS optimization. CSS media queries are now supported, and the new fallback_rewrite_css_urls filter allows partial optimization of CSS containing unsupported or proprietary extensions.

The default set of optimizers now includes the flatten_css_imports filter, improving out-of-the-box performance.

Improved mod_spdy interaction with support for custom mod_pagespeed configuration and filters for SPDY enabled clients. This makes it easier to deploy SPDY on your site, which can significantly decrease page load times.

release notesdocumentationissue trackerdiscussion groupJud Porter is a software engineer working on mod_pagespeed, an Apache module designed to automatically make websites faster. In his free time he enjoys experimenting with cocktails, brushing up on his foosball game, and discovering obscure music.Posted by Scott Knaster, Editor

Make the web faster with mod_pagespeed, now out of Beta

Wednesday, October 10, 2012

Ilya

Joshua

By Joshua Marantz and Ilya Grigorik, Google PageSpeed TeamCross-posted with Google Webmaster Central Blog and other Google blogsintroduced mod_pagespeed in 2010search rankingad quality scoresGoogle AnalyticsPageSpeed InsightsPageSpeed OptimizationPageSpeed Optimization Libraries Google Developers Live sessionmod_pagespeed product pageJoshua Marantz is the technical lead for mod_pagespeed. Ilya Grigorik is the Developer Advocate for Make the Web Fast.Posted by Scott Knaster, Editor

Measure and optimize with mod_pagespeed experiments

Monday, July 30, 2012

By Jeff Kaufman, Software Engineer, PageSpeed Teamcache extensionimage optimizationcss inliningsupports A/B testsGoogle Analyticscustom variablepagespeed.confModPagespeedRunExperiment on ModPagespeedAnalyticsID "UA-XXXXXXXX-Y" # half the users get the pagespeed optimizations ModPagespeedExperimentSpec id=3;percent=50;default # half get an unoptimized site ModPagespeedExperimentSpec id=4;percent=50

experiment framework guideJeff Kaufman works on mod_pagespeed, an open-source Apache module that helps make the web faster, and is interested in experiment measurement. He also plays for contra dances, organizes other dances, and blogs about dancing, giving, and tech.Posted by Scott Knaster, Editor

mod_spdy is now an Apache project

Making your site more mobile-friendly with PageSpeed Insights

Speeding up mobile pages with mod_pagespeed and ngx_pagespeed

SiteGround, IISpeed and Google Chrome make the web faster with PageSpeed

New mod_pagespeed: cache advances, progressive JPEGs

Scaling automatic web optimization with mod_pagespeed and memcached

Make the web faster with mod_pagespeed, now out of Beta

Measure and optimize with mod_pagespeed experiments

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