Resources for developing mobile-friendly pages

Users now browse websites from a mobile site as often (or more often) from a mobile device as from a desktop computer. You should design your website to be viewed by mobile devices.

Mobile devices generally fall into two classes: smartphones and feature phones. Smartphones are essentially mini desktop computers with small screens, and include Android and iPhone devices (we include tablet devices in this classification for design purposes). Feature phones are less capable devices, and are handled differently by Google than smartphones.

For both types of devices:

Resources and information for smartphone site developers
Resources and information for feature phone site developers
  • SERP and any pages linked by SERP are transcoded globally on any speed network unless either:
    • The page is already “feature-phone ready”,
    • The page has a <link rel="alternate" media="handheld" href="alternate_page.htm" /> tag.
  • All images in SERP and any pages linked by SERP are resized unless user specifically opts out.
  • PageSpeed insights 

Feature phone markup

Feature phone web pages come in several markup dialects, including WML, XHTML Basic, XHTML MP, and cHTML. Your choice will vary according to your target market.

Feature phone markup standards:

Feature phone validators:

Feature phone emulators


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