Best smartphone Site

Recommendations for building smartphone-optimized websites

Webmaster level: All
Every day more and more smartphones get activated and more websites are producing smartphone-optimized content. Since we last talked about how to build mobile-friendly websites, we’ve been working hard on improving Google’s support for smartphone-optimized content. As part of this effort, we launched Googlebot-Mobile for smartphones back in December 2011, which is specifically tasked with identifying such content.
Today we’d like to give you Google’s recommendations for building smartphone-optimized websites and explain how to do so in a way that gives both your desktop- and smartphone-optimized sites the best chance of performing well in Google’s search results.

Recommendations for smartphone-optimized sites

The full details of our recommendation can be found in our new help site, which we now summarize.
When building a website that targets smartphones, Google supports three different configurations:
  1. Sites that use responsive web design, i.e. sites that serve all devices on the same set of URLs, with each URL serving the same HTML to all devices and using just CSS to change how the page is rendered on the device. This is Google’s recommended configuration.
  2. Sites that dynamically serve all devices on the same set of URLs, but each URL serves different HTML (and CSS) depending on whether the user agent is a desktop or a mobile device.
  3. Sites that have a separate mobile and desktop sites.

Responsive web design

Responsive web design is a technique to build web pages that alter how they look using CSS3 media queries. That is, there is one HTML code for the page regardless of the device accessing it, but its presentation changes using CSS media queries to specify which CSS rules apply for the browser displaying the page. You can learn more about responsive web design from this blog post by Google's webmasters and in our recommendations.
Using responsive web design has multiple advantages, including:
  • It keeps your desktop and mobile content on a single URL, which is easier for your users to interact with, share, and link to and for Google’s algorithms to assign the indexing properties to your content.
  • Google can discover your content more efficiently as we wouldn't need to crawl a page with the different Googlebot user agents to retrieve and index all the content.

Device-specific HTML

However, we appreciate that for many situations it may not be possible or appropriate to use responsive web design. That’s why we support having websites serve equivalent content using different, device-specific, HTML. The device-specific HTML can be served on the same URL (a configuration called dynamic serving) or different URLs (such as and
If your website uses a dynamic serving configuration, we strongly recommend using the Vary HTTP header to communicate to caching servers and our algorithms that the content may change for different user agents requesting the page. We also use this as a crawling signal for Googlebot-Mobile. More details are here.
As for the separate mobile site configuration, since there are many ways to do this, our recommendation introduces annotations that communicate to our algorithms that your desktop and mobile pages are equivalent in purpose; that is, the new annotations describe the relationship between the desktop and mobile content as alternatives of each other and should be treated as a single entity with each alternative targeting a specific class of device.
These annotations will help us discover your smartphone-optimized content and help our algorithms understand the structure of your content, giving it the best chance of performing well in our search results.


This blog post is only a brief summary of our recommendation for building smartphone-optimized websites. Please read the full recommendation and see which supported implementation is most suitable for your site and users. And, as always, please ask on our Webmaster Help forums if you have more questions.
BESTEK 300W Dual 110V AC Outlets Power Inverter Car DC 12V to 110V AC Car Inverter with 3.1A Max Dual USB Charging Ports for Smartphones, Tablets and More
Car Audio or Theater (BESTEK)
  • BESTEK Advantage:Amazon s #1 power inverter brand. Provides 300 watts continuous DC to AC power and 700 watts of instantaneous power with 2 AC outlets and 2 USB...
  • Chargers: 2 AC outlets and 2 USB charging ports(2.1A & 1A), ideal for powering laptop, TV, cell phones, battery chargers, portable DVD players, lights, iPad...
  • Ultra Compact and Lightweight Design: ideal for use on the road, at campsites, remote job sites or anywhere that power is needed.24 inch cigarette lighter plug convenient...
  • Built-in 40 amps Fuse & Cooling Fan with Full-Protection: low battery alarm, low battery shutdown, overload protection, short circuit protection
  • What You Get: BESTEK 300W Power Inverter, User Manual, Our 18-month warranty and friendly customer service
You might also like:
LG G3 Review - Best smartphone of 2014?
LG G3 Review - Best smartphone of 2014?
The 7 Best Video Chat Apps for Your Smartphone
The 7 Best Video Chat Apps for Your Smartphone
Chamberlain Chamberlain MYQ-G0201 MyQ-Garage Controls Your Garage Door Opener with Your Smartphone
Home Improvement (Chamberlain)
  • Know when your garage door is open and close it from anywhere
  • Monitor, open and close your garage door from anywhere with your smartphone Receive alerts when the garage door opens or closes
  • Works with most major brands of garage door opener made after 1993 Installs in minutes and works with your home s Wi-Fi
  • Free App No other systems necessary and no monthly service charges
  • Included: Wi-Fi Hub, Power Cord, Mounting Bracket, Door Sensor, Instructions for free app download
Tunewear EGGSHELL PEARL Cell Phone Hard Shell Smartphone Case Cover for Apple iPhone 5c AT&T Verizon Sprint T-Mobile + All Carriers
Wireless (Tunewear)
  • IPhone 5c is held securely inside a polycarbonate case
  • Slim and solid protection for the iPhone 5c
  • With eggshell on, all of the iPhone ports, buttons and camera remain open and accessible
  • Included extras, protective film, ring strap stand and home button cover
AcuRite AcuRite 01036 Pro Color Weather Station with PC Connect, Rain, Wind, Temperature, Humidity, and Weather Ticker
Home (AcuRite)
  • 5-in-1 Sensor records outdoor temperature; relative humidity; rainfall; wind speed and direction
  • Programmable weather alarms for temperature, humidity, wind, rain, dew point, heat index and storm alerts
  • Remotely access weather data through Android and iOS app or internet browser
  • Uses patented Self-Calibrating Technology to provide your personal forecast of 12 to 24-hour weather conditions
  • Stream data to sites like Weather Underground and share with friends
EveryMarket iGearPro Bluetooth Wireless Headphones - Handsfree with Mic - Sweatproof Earbuds - for iPhone, Samsung and Other Smartphones
Wireless (EveryMarket)
  • ✔ LIGHTWEIGHT AND COMFORTABLE: Because these earbuds are so lightweight you won t even be able to tell they are in your ears. Soft to the touch, they will reduce...
  • ✔ LONG LASTING: When charged, this headset will last you up to 5 hours while talking on the phone or listening to music. Rechargeable battery. Up to 180 hours of...
  • ✔ BUILT IN MIC: The built in microphone in these earbuds allow for picking and hanging up phone calls right from the buds. Can also access your last call to redial...
  • ✔ GREAT SOUND QUALITY: These headphones will allow you to listen to HD music perfectly. Noise canceling for ultimate listening enjoyment.
  • ✔ VERY COMPATIBLE: Will reconnect to any previously connected device when close enough to each other. Can connect with Bluetooth enabled music players and iPads...
Related Posts