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MsSEM.com Helen M. Overland Helen M. Overland MsSEM.com The Canonical URL Tag How to Use the Canonical Tag to Avoid Duplic...
The Canonical URL Tag <ul><li>Contents  </li></ul><ul><li>Who Am I? </li></ul><ul><li>What is Duplicate Content and Why is...
The Canonical URL Tag Who Am I? <ul><li>Director, Search Engine Marketing with non~linear creations –  www.nonlinear.ca   ...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>Search Engines visit your website and try...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>To Search Engines, these may all be  DIFF...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>So the search engine &quot;guesses&quot; ...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>If the search engine only visits a few pa...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>So we use 301 Redirects to control where ...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>But 301 redirects have limitations. What ...
The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>And it's hard to make 301 Redirects handl...
The Canonical URL Tag <ul><li>Oh dear. </li></ul>MsSEM.com Helen M. Overland
The Canonical URL Tag What is the &quot;Canonical&quot; Tag? <ul><li>On many CMS systems and websites, people can add on w...
The Canonical URL Tag What is the &quot;Canonical&quot; Tag? <ul><li>Google, Yahoo and Microsoft realized this was a probl...
The Canonical URL Tag What are the Limitations of the Canonical Tag? <ul><li>Search engines seem to be getting smart to sp...
The Canonical URL Tag How to Add the new Canonical Tag to Your Website <ul><li>The canonical tag is a simple tag that is a...
The Canonical URL Tag How Does the Canonical Tag Help? <ul><li>Search engines will now have a hint as to which is the &quo...
Thank You! <ul><li>Helen M. Overland  (a.k.a.  semlady )  </li></ul><ul><li>[email_address]   </li></ul><ul><li>MsSEM.com ...
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How to Use the Canonical URL Tag to Avoid Duplicate Content

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Find out how to avoid your website getting caught in search engine duplicate content filters by adding this simple tag to your website - the new canonical URL tag now working in Google, Yahoo and MSN Live

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Transcript of "How to Use the Canonical URL Tag to Avoid Duplicate Content"

  1. 1. MsSEM.com Helen M. Overland Helen M. Overland MsSEM.com The Canonical URL Tag How to Use the Canonical Tag to Avoid Duplicate Content Filters in Google, Yahoo & Live
  2. 2. The Canonical URL Tag <ul><li>Contents </li></ul><ul><li>Who Am I? </li></ul><ul><li>What is Duplicate Content and Why is it a Problem? </li></ul><ul><li>What is the &quot;Canonical&quot; Tag? </li></ul><ul><li>What are the Limitations of the Canonical Tag? </li></ul><ul><li>How to Add the new Canonical Tag to Your Website </li></ul><ul><li>Further Coverage </li></ul>MsSEM.com Helen M. Overland
  3. 3. The Canonical URL Tag Who Am I? <ul><li>Director, Search Engine Marketing with non~linear creations – www.nonlinear.ca </li></ul><ul><li>Projects with large well-known brands </li></ul><ul><li>Proven Success: Demonstrated increases in sales and traffic year over year on large & small budgets </li></ul><ul><li>Over a decade of experience </li></ul><ul><li>Speaker at marketing conferences such as Search Engine Strategies, Search Marketing Expo, PodCamp Toronto </li></ul>MsSEM.com Helen M. Overland
  4. 4. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>Search Engines visit your website and try to determine what pages you have </li></ul><ul><li>If two pages are very similar, one </li></ul><ul><li>of them might be flagged as </li></ul><ul><li>“ duplicate content ” </li></ul>MsSEM.com Helen M. Overland I love fresh , unique and quality content!
  5. 5. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>To Search Engines, these may all be DIFFERENT pages: </li></ul><ul><li>http://www.example.com/ </li></ul><ul><li>http://example.com </li></ul><ul><li>http://www.example.com/index.php </li></ul><ul><li>http://example.com/index.php?disp=home </li></ul><ul><li>... Even though these URLs are all </li></ul><ul><li>just your single home page </li></ul>MsSEM.com Helen M. Overland Which One is Right???
  6. 6. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>So the search engine &quot;guesses&quot; which is the &quot;right&quot; page </li></ul><ul><li>http://www.example.com/ </li></ul><ul><li>http://example.com </li></ul><ul><li>http://www.example.com/index.php </li></ul><ul><li>http://example.com/index.php?disp=home </li></ul>MsSEM.com Helen M. Overland I pick... uh... THAT one!
  7. 7. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>If the search engine only visits a few pages on your site, and most are duplicate URLs, some of your &quot;real&quot; pages might not get spidered </li></ul><ul><li>http://www.example.com/ </li></ul><ul><li>http://example.com </li></ul><ul><li>http://www.example.com/index.php </li></ul><ul><li>http://example.com/index.php?disp=home </li></ul>MsSEM.com Helen M. Overland Whew... I'm done for the day here
  8. 8. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>So we use 301 Redirects to control where people go </li></ul><ul><li>Redirect all people from: </li></ul><ul><li>http://www.example.com/ </li></ul><ul><li>http://www.example.com/index.php </li></ul><ul><li>http://example.com/index.php?disp=home </li></ul><ul><li>To: </li></ul><ul><li>http://example.com </li></ul>MsSEM.com Helen M. Overland Ah ha! I See!
  9. 9. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>But 301 redirects have limitations. What if you are a retailer who advertises through affiliate websites? </li></ul><ul><li>http://www.example.com/products/white-runner </li></ul><ul><li>http://www.example.com/products/white-runner?affiliate=123 </li></ul><ul><li>Which link gets listed in search </li></ul><ul><li>results pages? </li></ul>MsSEM.com Helen M. Overland Now which one do I index?
  10. 10. The Canonical URL Tag What is Duplicate Content and Why is it a Problem? <ul><li>And it's hard to make 301 Redirects handle unforeseen circumstances </li></ul><ul><li>Consider the following somewhat unfortunate URL… </li></ul>MsSEM.com Helen M. Overland
  11. 11. The Canonical URL Tag <ul><li>Oh dear. </li></ul>MsSEM.com Helen M. Overland
  12. 12. The Canonical URL Tag What is the &quot;Canonical&quot; Tag? <ul><li>On many CMS systems and websites, people can add on whatever additions to the URL they like, and the page will still work. </li></ul><ul><li>If a URL returns a valid page, and is </li></ul><ul><li>linked to enough times, or is linked to </li></ul><ul><li>from a highly authoritative domain, </li></ul><ul><li>the URL may be indexed. </li></ul>MsSEM.com Helen M. Overland Hmm... that URL seems to be popular, I'll add it right now
  13. 13. The Canonical URL Tag What is the &quot;Canonical&quot; Tag? <ul><li>Google, Yahoo and Microsoft realized this was a problem for people. </li></ul><ul><li>So they created the new &quot;Canonical“ tag </li></ul><ul><li>The &quot;Canonical&quot; tag is a way for you </li></ul><ul><li>to declare the &quot;official&quot; URL of the </li></ul><ul><li>page – no matter what's extra in the URL </li></ul><ul><li>The &quot;Canonical&quot; page is the “true“ URL of the </li></ul><ul><li>page </li></ul>MsSEM.com Helen M. Overland Here we come to save the day!
  14. 14. The Canonical URL Tag What are the Limitations of the Canonical Tag? <ul><li>Search engines seem to be getting smart to spam tactics before they launch new features </li></ul><ul><li>The canonical tag will only work on </li></ul><ul><li>your domain </li></ul><ul><li>The content of the canonical page </li></ul><ul><li>must be very similar to the page </li></ul><ul><li>that points to it </li></ul>MsSEM.com Helen M. Overland You can't fool me this time, spammers!
  15. 15. The Canonical URL Tag How to Add the new Canonical Tag to Your Website <ul><li>The canonical tag is a simple tag that is added to the <HEAD> area of your webpages </li></ul><ul><li>It looks like this: </li></ul><ul><li><link rel=&quot;canonical&quot; </li></ul><ul><li>href=&quot;http://www.example.com/products/white-runner&quot; /> </li></ul><ul><li>..Just add the &quot;real&quot; URL to each page on your site by using this tag </li></ul>MsSEM.com Helen M. Overland
  16. 16. The Canonical URL Tag How Does the Canonical Tag Help? <ul><li>Search engines will now have a hint as to which is the &quot;real&quot; page </li></ul><ul><li>http://www.example.com/index.php </li></ul><ul><li>http://www.example.com/index.php?unfortunate=link </li></ul><ul><li>Which can help stop URLs you don't </li></ul><ul><li>want from being indexed </li></ul>MsSEM.com Helen M. Overland No, that's probably not right
  17. 17. Thank You! <ul><li>Helen M. Overland (a.k.a. semlady ) </li></ul><ul><li>[email_address] </li></ul><ul><li>MsSEM.com </li></ul><ul><li>nonlinearcreations.com </li></ul><ul><li>Follow me! twitter.com/semlady </li></ul><ul><li>Get more information on the </li></ul><ul><li>Canonical Tag here: </li></ul><ul><li>mssem.com/library/url-canonical-tag.php </li></ul>MsSEM.com Helen M. Overland That's One Smart Lady!
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