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Seo Master present to you:

This is a guest post by Owen Barton, partner and director of engineering at CivicActions. Owen has been working with Google's “Make the Web Faster” project team and the Drupal community to make improvements in Drupal 7 front-end performance. This is a condensed version of a more in-depth post over at the CivicActions blog.

Drupal is a popular free and open source publishing platform, powering high profile sites such as The White House, The New York Observer and Amnesty International. The Drupal community has long understood the importance of good front-end performance to successful web sites, being ahead of the game in many ways. This post highlights some of the improvements developed for the upcoming Drupal 7 release, several of which can save an additional second or more of page load times.

Drupal 7 has made its caching system more easily pluggable - to allow for easier memcache integration, for example. It has also enabled caching HTTP headers to be set so that logged out users can cache entire pages locally as well as improve compatibility with reverse proxies and content distribution networks (CDNs). There is also a patch waiting which reduces both the response size and the time taken to generate 404 responses for inlined page assets. Depending on the type of 404 (CSS have a larger effect than images, for example) the slower 404s were adding 0.5 to 1 second to the calling page load times.

Drupal currently has the ability to aggregate multiple CSS and JavaScript files by concatenating them into a smaller number of files to reduce the number of HTTP requests. There is a patch in the queue for Drupal 7 that could allow aggregation to be enabled by default, which is great because the large number of individual files can add anything from 0-1.5 seconds to page loads.

One issue that has become apparent with the Drupal 6 aggregation system is that users can end up downloading aggregate files that include a large amount of duplicate code. On one page the aggregate may contain files a, b and c, whilst on a second page the aggregate may contain files a, b and d - the “c” and “d” files being added conditionally on specific pages. This breaks the benefits of browser caching and slows down subsequent page loads. Benchmarking on core alone shows that avoiding duplicate aggregates can save over a second across 5 page loads. A patch has already been committed that means files need to be explicitly added to the aggregate, and fix Drupal core to add appropriate files to the aggregate unconditionally.

Drupal has supported gzip compression of HTML output for a long time, however for CSS and JavaScript, the files are delivered directly by the webserver, so Drupal has less control. There are webserver based compressors such as Apache’s mod_deflate, but these are not always available. A patch is in the queue that stores compressed versions of aggregated files on write and uses rewrite and header directives in .htaccess that allow these files to be served correctly. Benchmarks show that this patch can make initial page views 20-60% faster, saving anything from 0.3 to 3 seconds total.

The Drupal 7 release promises some real improvements from a front-end performance point of view. Other performance optimizations will no doubt continue to appear and be refined in contributed modules and themes, as well as in site building best practices and documentation. In Drupal 8 we will hopefully see further improvements in the CSS/JS file aggregation system, increased high-level caching effectiveness and hopefully more tools to help site builders reduce file sizes. If you have yet to try Drupal, download it now and give it a try and tell us in the comments if your site performance improves!

By Owen Barton of CivicActions2013, By: Seo Master

Seo Master present to you:

We are now ready to share the Google Developer Day agendas for Tokyo, Sao Paulo, Munich, Moscow and Prague. We have so much technical content to share but alas, Developer Day is a one-day event. There may still be changes to the agenda, but here is a sneak peek at where we are.

Globally, we will feature three major tracks:

• Android - With the continued momentum and growth of the platform, we would like to continue the conversation with you at Developer Day. We will feature sessions on Android performance, mobile user experience and best practices on building apps, and we will also deep dive on a new feature, Cloud to Device Messaging (C2DM).


• Chrome & HTML5 - We will discuss how to build an app for the Chrome Web Store and how to improve its development and performance. We’ll show which aspects of HTML5, Chrome Developer Tools and Native Client can be most useful to you. Finally, we will cover everything auth-related to show you when and where to use various authentication tools and how they integrate with our APIs and products.


• Cloud Platform - Building off of our series of announcements at Google I/O, we will feature sessions on App Engine, App Engine for Business, Spring integration, Google Web Toolkit, Google Storage for Developers, BigQuery and Prediction API. Be prepared for code samples, how to optimize performance and a glimpse into what else is on our roadmap.

We are happy to announce that Eric Tholome, Product Management Director for Developer Products, will be a keynote speaker in Sao Paulo, Munich, Moscow and Prague. In addition, we are happy to invite as our second keynote speaker:

• Sao Paulo, Brazil - Mario Queiroz, VP Product Management


• Munich, Germany - Dr. Wieland Holfelder, Engineering Director


• Moscow, Russia - Dr. Gene Sokolov, Head of Moscow Engineering

Due to the success of the Venture Capital sessions at Google I/O and the growing VC activity in our global markets, a new addition this year is Venture Capital panels at most of our Developer Days. Come hear from your local VCs on what they look for in startups.

The Sao Paulo and Moscow keynote presentations will have live translation, and for sessions, check the FAQ section of your Developer Day site. We will have savvy gurus available to answer your questions during Office Hours, and you will have a chance to meet Googlers and each other over Happy Hour.

Registration will open on September 15th for Sao Paulo and on September 22nd for Munich, Moscow and Prague. Tokyo’s registration is now closed. 2013, By: Seo Master

Seo Master present to you: Just a heads up that it should now be easier for users to find SVG files when searching on Google. That’s right, we’ve expanded our indexing capabilities to include SVG. Feel free to check out our Webmaster Help Center for the complete list of file types we support, and our Webmaster Blog for more information on our SVG announcement.

By Maile Ohye, Google Developer Relations2013, By: Seo Master