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salam every one, this is a topic from google web master centrale blog:

If your page is on the web, speed matters. For developers and webmasters, making your page faster shouldn’t be a hassle, which is why we introduced mod_pagespeed in 2010. Since then the development team has been working to improve the functionality, quality and performance of this open-source Apache module that automatically optimizes web pages and their resources. Now, after almost two years and eighteen releases, we are announcing that we are taking off the Beta label.

We’re committed to working with the open-source community to continue evolving mod_pagespeed, including more, better and smarter optimizations and support for other web servers. Over 120,000 sites are already using mod_pagespeed to improve the performance of their web pages using the latest techniques and trends in optimization. The product is used worldwide by individual sites, and is also offered by hosting providers, such as DreamHost, Go Daddy and content delivery networks like EdgeCast. With the move out of beta we hope that even more sites will soon benefit from the web performance improvements offered through mod_pagespeed.

mod_pagespeed is a key part of our goal to help make the web faster for everyone. Users prefer faster sites and we have seen that faster pages lead to higher user engagement, conversions, and retention. In fact, page speed is one of the signals in search ranking and ad quality scores. Besides evangelizing for speed, we offer tools and technologies to help measure, quantify, and improve performance, such as Site Speed Reports in Google Analytics, PageSpeed Insights, and PageSpeed Optimization products. In fact, both mod_pagespeed and PageSpeed Service are based on our open-source PageSpeed Optimization Libraries project, and are important ways in which we help websites take advantage of the latest performance best practices.



To learn more about mod_pagespeed and how to incorporate it in your site, watch our recent Google Developers Live session or visit the mod_pagespeed product page.


Posted by Joshua Marantz and Ilya Grigorik, Google PageSpeed Teamthis is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com

Seo Master present to you: We recently published deprecation policies for a number of APIs that graduated from Google Code Labs. They state how long we'll support each version from when it's deprecated or a newer version is introduced. It will be 3 years for most, but the time period varies a bit from product to product.

• AdWords API terms
• AdSense API terms
• AJAX Feed API terms
• AJAX Language API terms
• AJAX Libraries API terms
• AJAX Search API terms
• Apps APIs terms
• Calendar Data API terms
• Chart API terms
• Health API terms
• Geo APIs terms (Earth API, Mapplets, Maps API, Maps API for Flash, and Static Maps API)
• Secure Data Connector terms

We still need to update the terms for a couple remaining graduates, but should have them all done within the next couple weeks.

By Neel Kshetramade, Google Developer Programs2013, By: Seo Master

salam every one, this is a topic from google web master centrale blog:

Webmaster Level: All

The homepages of multinational and multilingual websites are sometimes configured to point visitors to localized pages, either via redirects or by changing the content to reflect the user’s language. Today we’ll introduce a new rel-alternate-hreflang annotation that the webmaster can use to specify such homepages that is supported by both Google and Yandex.

To see this in action, let’s look at an example. The website example.com has content that targets users around the world as follows:

• http://example.com/en-gb: For English-speaking users in the UK
• http://example.com/en-us: For English-speaking users in the USA
• http://example.com/en-au: For English-speaking users in Australia
• http://example.com/: The homepage shows users a country selector and is the default page for users worldwide

In this case, the webmaster can annotate this cluster of pages using rel-alternate-hreflang using Sitemaps or using HTML link tags like this:

<link rel="alternate" href="http://example.com/en-gb" hreflang="en-gb" />
<link rel="alternate" href="http://example.com/en-us" hreflang="en-us" />
<link rel="alternate" href="http://example.com/en-au" hreflang="en-au" />
<link rel="alternate" href="http://example.com/" hreflang="x-default" />

The new x-default hreflang attribute value signals to our algorithms that this page doesn’t target any specific language or locale and is the default page when no other page is better suited. For example, it would be the page our algorithms try to show French-speaking searchers worldwide or English-speaking searchers on google.ca.

The same annotation applies for homepages that dynamically alter their contents based on a user’s perceived geolocation or the Accept-Language headers. The x-default hreflang value signals to our algorithms that such a page doesn’t target a specific language or locale.

As always, if you have any questions or feedback, please tell us in the Internationalization Webmaster Help Forum.

Posted by Pierre Far, Webmaster Trends Analyst

this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com