Developing algorithmic changes to search involves a process of experimentation. Part of that experimentation is having evaluators—people who assess the quality of Google’s search results—give us feedback on our experiments. Ratings from evaluators do not determine individual site rankings, but are used help us understand our experiments. The evaluators base their ratings on guidelines we give them; the guidelines reflect what Google thinks search users want.
In 2013, we published our human rating guidelines to provide transparency on how Google works and to help webmasters understand what Google looks for in web pages. Since that time, a lot has changed: notably, more people have smartphones than ever before and more searches are done on mobile devices today than on computers.
We often make changes to the guidelines as our understanding of what users wants evolves, but we haven’t shared an update publicly since then. However, we recently completed a major revision of our rater guidelines to adapt to this mobile world, recognizing that people use search differently when they carry internet-connected devices with them all the time. You can find that update here (PDF).
This is not the final version of our rater guidelines. The guidelines will continue to evolve as search, and how people use it, changes. We won’t be updating the public document with every change, but we will try to publish big changes to the guidelines periodically.
We expect our phones and other devices to do a lot, and we want Google to continue giving users the answers they're looking for—fast!
Recently we have started rolling out a series of algorithmic changes that aim to tackle hacked spam in our search results. A huge amount of legitimate sites are hacked by spammers and used to engage in abusive behavior, such as malware download, promotion of traffic to low quality sites, porn, and marketing of counterfeit goods or illegal pharmaceutical drugs, etc.
Website owners that don’t implement standard best practices for security can leave their websites vulnerable to being easily hacked. This can include government sites, universities, small business, company websites, restaurants, hobby organizations, conferences, etc. Spammers and cyber-criminals purposely seek out those sites and inject pages with malicious content in an attempt to gain rank and traffic in search engines.
We are aggressively targeting hacked spam in order to protect users and webmasters.
The algorithmic changes will eventually impact roughly 5% of queries, depending on the language. As we roll out the new algorithms, users might notice that for certain queries, only the most relevant results are shown, reducing the number of results shown:
This is due to the large amount of hacked spam being removed, and should improve in the near future. We are continuing tuning our systems to weed out the bad content while retaining the organic, legitimate results. If you have any questions about these changes, or want to give us feedback on these algorithms, feel free to drop by our Webmaster Help Forums.
Posted by Ning Song, Software Engineer
We’ve been helping users discover relevant content from Android apps in Google search results for a while now. Starting today, we’re bringing App Indexing to iOS apps as well. This means users on both Android and iOS will be able to open mobile app content straight from Google Search.
Indexed links from an initial group of apps we’ve been working with will begin appearing on iOS in search results both in the Google App and Chrome for signed-in users globally in the coming weeks:
How to get your iOS app indexed
While App Indexing for iOS is launching with a small group of test partners initially, we’re working to make this technology available to more app developers as soon as possible. In the meantime, here are the steps to get a head start on App Indexing for iOS:
If you happen to be attending Google I/O this week, stop by our talk titled “Get your app in the Google index” to learn more about App Indexing. You’ll also find detailed documentation on App Indexing for iOS at g.co/AppIndexing. If you’ve got more questions, drop by our Webmaster help forum.
Webmaster level: all
When it comes to search on mobile devices, users should get the most relevant and timely results, no matter if the information lives on mobile-friendly web pages or apps. As more people use mobile devices to access the internet, our algorithms have to adapt to these usage patterns. In the past, we’ve made updates to ensure a site is configured properly and viewable on modern devices. We’ve made it easier for users to find mobile-friendly web pages and we’ve introduced App Indexing to surface useful content from apps. Today, we’re announcing two important changes to help users discover more mobile-friendly content:
Starting April 21, we will be expanding our use of mobile-friendliness as a ranking signal. This change will affect mobile searches in all languages worldwide and will have a significant impact in our search results. Consequently, users will find it easier to get relevant, high quality search results that are optimized for their devices.
To get help with making a mobile-friendly site, check out our guide to mobile-friendly sites. If you’re a webmaster, you can get ready for this change by using the following tools to see how Googlebot views your pages:
Starting today, we will begin to use information from indexed apps as a factor in ranking for signed-in users who have the app installed. As a result, we may now surface content from indexed apps more prominently in search. To find out how to implement App Indexing, which allows us to surface this information in search results, have a look at our step-by-step guide on the developer site.
If you have questions about either mobile-friendly websites or app indexing, we’re always happy to chat in our Webmaster Help Forum.
Update (16:30h CET, September 12th): We're noticing an enthusiastic uptick in the markup implementation after the initial announcement last week! Here are the two main issues we've observed so far, and what you need to do to fix them:
Security is a top priority for Google. We invest a lot in making sure that our services use industry-leading security, like strong HTTPS encryption by default. That means that people using Search, Gmail and Google Drive, for example, automatically have a secure connection to Google.
Beyond our own stuff, we’re also working to make the Internet safer more broadly. A big part of that is making sure that websites people access from Google are secure. For instance, we have created resources to help webmasters prevent and fix security breaches on their sites.
We want to go even further. At Google I/O a few months ago, we called for “HTTPS everywhere” on the web.
We’ve also seen more and more webmasters adopting HTTPS (also known as HTTP over TLS, or Transport Layer Security), on their website, which is encouraging.
For these reasons, over the past few months we’ve been running tests taking into account whether sites use secure, encrypted connections as a signal in our search ranking algorithms. We've seen positive results, so we're starting to use HTTPS as a ranking signal. For now it's only a very lightweight signal — affecting fewer than 1% of global queries, and carrying less weight than other signals such as high-quality content — while we give webmasters time to switch to HTTPS. But over time, we may decide to strengthen it, because we’d like to encourage all website owners to switch from HTTP to HTTPS to keep everyone safe on the web.
In the coming weeks, we’ll publish detailed best practices (it's in our help center now) to make TLS adoption easier, and to avoid common mistakes. Here are some basic tips to get started:
If your website is already serving on HTTPS, you can test its security level and configuration with the Qualys Lab tool. If you are concerned about TLS and your site’s performance, have a look at Is TLS fast yet?. And of course, if you have any questions or concerns, please feel free to post in our Webmaster Help Forums.
We hope to see more websites using HTTPS in the future. Let’s all make the web more secure!
Do you have an Android app in addition to your website? You can now connect the two so that users searching from their smartphones and tablets can easily find and reach your app content.
App deep links in search results help your users find your content more easily and re-engage with your app after they’ve installed it. As a site owner, you can show your users the right content at the right time — by connecting pages of your website to the relevant parts of your app you control when your users are directed to your app and when they go to your website.
Hundreds of apps have already implemented app indexing. This week at Google I/O, we’re announcing a set of new features that will make it even easier to set up deep links in your app, connect your site to your app, and keep track of performance and potential errors.
We’ve greatly simplified the process to get your app deep links indexed. If your app supports HTTP deep linking schemes, here’s what you need to do:
As we index your URLs, we’ll discover and index the app / site connections and may begin to surface app deep links in search results.
We can discover and index your app deep links on our own, but we recommend you publish the deep links. This is also the case if your app only supports a custom deep link scheme. You can publish them in one of the following ways:
There’s one more thing: we’ve added a new feature in Webmaster Tools to help you debug any issues that might arise during app indexing. It will show you what type of errors we’ve detected for the app page-web page pairs, together with example app URIs so you can debug:
We’ll also give you detailed instructions on how to debug each issue, including a QR code for the app deep links, so you can easily open them on your phone or tablet. We’ll send you Webmaster Tools error notifications as well, so you can keep up to date.
Give app indexing a spin, and as always, if you need more help ask questions on the Webmaster help forum.
Posted by Mariya Moeva, Webmaster Trends Analyst
<div itemscope itemtype="http://schema.org/Organization"> <a itemprop="url" href="http://www.example.com/">Home</a> <img itemprop="logo" src="http://www.example.com/logo.png" /> </div>
Update 21 October 2014: You can also use any other supported syntax such as this JSON-LD code:
<script type="application/ld+json"> { "@context": "http://schema.org/", "@type": "Organization", "url": "http://www.example.com/", "logo": "http://www.example.com/logo.png" } </script>
Webmasters have several ways to keep their sites' content out of Google's search results. Today, as promised, we're providing a way for websites to opt out of having their content that Google has crawled appear on Google Shopping, Advisor, Flights, Hotels, and Google+ Local search.
Webmasters can now choose this option through our Webmaster Tools, and crawled content currently being displayed on Shopping, Advisor, Flights, Hotels, or Google+ Local search pages will be removed within 30 days.
Posted by Matt Cutts, Distinguished Engineer
Update 19 February 2013: Data Highlighter for events structured markup is available in all languages in Webmaster Tools.
At Google we're making more and more use of structured data to provide enhanced search results, such as rich snippets and event calendars, that help users find your content. Until now, marking up your site's HTML code has been the only way to indicate structured data to Google. However, we recognize that markup may be hard for some websites to deploy.
Today, we're offering webmasters a simpler alternative: Data Highlighter. At initial launch, it's available in English only and for structured data about events, such as concerts, sporting events, exhibitions, shows, and festivals. We'll make Data Highlighter available for more languages and data types in the months ahead. Update 19 February 2013: Data Highlighter for events structured markup is available in all languages in Webmaster Tools. Update 2: You can see the full list of schemas supported in Data Highlighter here.
Data Highlighter is a point-and-click tool that can be used by anyone authorized for your site in Google Webmaster Tools. No changes to HTML code are required. Instead, you just use your mouse to highlight and "tag" each key piece of data on a typical event page of your website:
If your page lists multiple events in a consistent format, Data Highlighter will "learn" that format as you apply tags, and help speed your work by automatically suggesting additional tags. Likewise, if you have many pages of events in a consistent format, Data Highlighter will walk you through a process of tagging a few example pages so it can learn about their format variations. Usually, 5 or 10 manually tagged pages are enough for our sophisticated machine-learning algorithms to understand the other, similar pages on your site.
When you're done, you can review a sample of all the event data that Data Highlighter now understands. If it's correct, click "Publish." From then on, as Google crawls your site, it will recognize your latest event listings and make them eligible for enhanced search results. You can inspect the crawled data on the Structured Data Dashboard, and unpublish at any time if you're not happy with the results.
Here’s a short video explaining how the process works:
To get started with Data Highlighter, visit Webmaster Tools, select your site, click the "Optimization" link in the left sidebar, and click "Data Highlighter".
If you have any questions, please read our Help Center article or ask us in the Webmaster Help Forum. Happy Highlighting!
Posted by Justin Boyan, Product Manager
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