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Official Google Webmaster Central Blog

Jumat, 09 Agustus 2013

Official Google Webmaster Central Blog

Link to Google Webmaster Central Blog

Making smartphone sites load fast

Posted: 08 Aug 2013 02:24 PM PDT

Webmaster level: Intermediate

Users tell us they use smartphones to search online because it's quick and convenient, but today's average mobile page typically takes more than 7 seconds to load. Wouldn't it be great if mobile pages loaded in under one second? Today we're announcing new guidelines and an updated PageSpeed Insights tool to help webmasters optimize their mobile pages for best rendering performance.

Prioritizing above-the-fold content

Research shows that users' flow is interrupted if pages take longer than one second to load. To deliver the best experience and keep the visitor engaged, our guidelines focus on rendering some content, known as the above-the-fold content, to users in one second (or less!) while the rest of the page continues to load and render in the background. The above-the-fold HTML, CSS, and JS is known as the critical rendering path.

We can achieve sub-second rendering of the above-the-fold content on mobile networks by applying the following best practices:
  • Server must render the response (< 200 ms)
  • Number of redirects should be minimized
  • Number of roundtrips to first render should be minimized
  • Avoid external blocking JavaScript and CSS in above-the-fold content
  • Reserve time for browser layout and rendering (200 ms)
  • Optimize JavaScript execution and rendering time
These are explained in more details in the mobile-specific help pages, and, when you're ready, you can test your pages and the improvements you make using the PageSpeed Insights
tool.

As always, if you have any questions or feedback, please post in our discussion group.


View manual webspam actions in Webmaster Tools

Posted: 08 Aug 2013 12:06 PM PDT

Webmaster level: All

We strive to keep spam out of our users' search results. This includes both improving our webspam algorithms as well as taking manual action for violations of our quality guidelines. Many webmasters want to see if their sites are affected by a manual webspam action, so today we're introducing a new feature that should help. The manual action viewer in Webmaster Tools shows information about actions taken by the manual webspam team that directly affect that site's ranking in Google's web search results. To try it out, go to Webmaster Tools and click on the "Manual Actions" link under "Search Traffic."

You'll probably see a message that says, "No manual webspam actions found." A recent analysis of our index showed that well under 2% of domains we've seen are manually removed for webspam. If you see this message, then your site doesn't have a manual removal or direct demotion for webspam reasons.

If your site is in the very small fraction that do have a manual spam action, chances are we've already notified you in Webmaster Tools. We'll keep sending those notifications, but now you can also do a live check against our internal webspam systems. Here's what it would look like if Google had taken manual action on a specific section of a site for "User-generated spam":

Partial match. User-generated spam affects mattcutts.com/forum/


In this hypothetical example, there isn't a site-wide match, but there is a "partial match." A partial match means the action applies only to a specific section of a site. In this case, the webmaster has a problem with other people leaving spam on mattcutts.com/forum/. By fixing this common issue, the webmaster can not only help restore his forum's rankings on Google, but also improve the experience for his users. Clicking the "Learn more" link will offer new resources for troubleshooting.

Once you've corrected any violations of Google's quality guidelines, the next step is to request reconsideration. With this new feature, you'll find a simpler and more streamlined reconsideration request process. Now, when you visit the reconsideration request page, you'll be able to check your site for manual actions, and then request reconsideration only if there's a manual action applied to your site. If you do have a webspam issue to address, you can do so directly from the Manual Actions page by clicking "Request a review."

The manual action viewer delivers on a popular feature request. We hope it reassures the vast majority of webmasters who have nothing to worry about. For the small number of people who have real webspam issues to address, we hope this new information helps speed up the troubleshooting. If you have questions, come find us in the Webmaster Help Forum or stop by our Office Hours.

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