Smx Lo Mo 2008

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JORDAN KASTELER CRACKING THE CODE: Inside the Black Box of Mobile Search Algorithms

Transcript of Smx Lo Mo 2008

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JORDAN KASTELER

CRACKING THE CODE:Inside the Black Box of

Mobile Search Algorithms

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Jordan Kasteler a.ka.

Utah SEO Prowww.JordanKasteler.com

www.SearchAndSocial.com

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Mobile Search

www.SearchAndSocial.com

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www.SearchAndSocial.com

Mobile Web Results

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Mobile Web Refinement

www.SearchAndSocial.com

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Mobile Web Algo Signals - Code

www.SearchAndSocial.com

• Code in W3C Standardso xHTML Mobile Profile (WAP 2.0) (preferred)o WML (WAP 1.1)o cHTML (iMode)

• Proper Document Type Declaration (DTD)o <?xml version=“1.0” encoding=“UTF-8” ?>o <!DOCTYPE html PUBLIC “-//WAPFORUM/DTD XHTML Mobile

1.0//EN“ “http://www.wapforum.org/DTD/xhtml-mobile10.dtd”>

• CSSo Use %’s and absolute positioning

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Mobile Web Algo Signals - Layout

www.SearchAndSocial.com

• Imageso Max: 120px wide (avg WAP screen size width)

• Screen Width (for iPhones)o <!--[if !IE]>-->

<link media="only screen and (max-device-width: 480px)"  rel="stylesheet" type="text/css" href="iphone.css"/><!--<![endif]•

o @media only screen and (max-device-width: 480px) {  .navigation { display: none;  } }

o <meta name="viewport" content="width=480; initial-scale=0.6666; maximum-scale=1.0; minimum-scale=0.6666" />

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Mobile Web Algo Signals - Accessibility

www.SearchAndSocial.com

• Telephone Attribute<a href=“tel:8015555555”>801-555-5555</a>

• Mobile Access Keys<a href=“#” accesskey=“1”>Link</a>

• File Size (Keep under 20k) Use Meta Cache Control<meta http-equiv=“Cache-Control” content=“max-age-300” />

• JavaScriptNo indexable content

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Mobile Web Algo Signals - Accessibility

www.SearchAndSocial.com

• Input FieldsNumeric: • <input type=“text” style=‘ –wap-input-format: “*N”’ />

Alpha Characters:• <input type=“text” style=‘ –wap-input-format: “A*a”’ />

• No Flash, Pop-Ups, or Frames

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Mobile Web Algo Signals - Rendering

www.SearchAndSocial.com

• CSS Stylesheetso <link rel="stylesheet" type="text/css" media="handheld, projection,

tv" href="mobile.css" />o @media handheld { @image1 {display: none;}}

• Device Detection Redirecto http://www.andymoore.info/php-to-detect-mobile-phones/

o Unique profiles for each device: Redirect .MOBI to subdomain or sub-folder. Example: http://mobile.domain.com

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Mobile Web Algo Signals - Sitemap

www.SearchAndSocial.com

• XML Sitemap• <?xml version="1.0" encoding="UTF-8" ?> <urlset

xmlns="http://www.google.com/schemas/sitemap/0.84" xmlns:mobile="http://www.google.com/schemas/sitemap-mobile/1.0"> <url> <loc>http://mobile.example.com/article100.html</loc> <mobile:mobile/> </url> </urlset>

Google XML Sitemap Submission:http://www.google.com/support/webmasters/bin/answer.py?answer=34648&topic=8493

Yahoo! XML Sitemap Submission:https://siteexplorer.search.yahoo.com/mobilesubmit

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Mobile Web Algo Signals - Co-Citation

www.SearchAndSocial.com

• LinksLink to and get links from other mobile sites

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Mobile Web Algo Signals - Submission

www.SearchAndSocial.com

• Niche Directories• Search Engines

https://siteexplorer.search.yahoo.com/mobilesubmit

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RESOURCES

www.SearchAndSocial.com

• XMHTML MP Tutorial - http://developershome.com/wap/xhtmlmp/

• XHTML Mobile Profile Tag List - http://htmllint.itc.keio.ac.jp/htmllint/tagslist.cgi?HTMLVersion=xhtml-mp

• W3C MobileOK - http://validator.w3.org/mobile/

• Mobile Emulator - http://mtld.mobi/emulator.php

• Mobile Device Detect and Direct - http://www.developershome.com/wap/detection/detection.asp?page=userAgentHeader

• Wordpress Mobile Plugin - http://www.andymoore.info/wordpress-mobile-plugin/

• iPhone Tester - http://iphone.facebook.com/

• Yahoo! Mobile Tips - http://help.yahoo.com/l/us/yahoo/mobile/search/mobilewebtips.html