The document discusses duplicate content and solutions. It is a presentation by Eric Enge from Stone Temple Consulting on duplicate content issues and how to resolve them. Some solutions discussed are using canonical tags, noindex tags for alternate pages, and 301 redirects. The presentation includes examples of duplicate content scenarios and recommendations for how to pick the best version for search engines.
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Duplicate Content slide deck from SES San Francisco August 15, 2012
2. San Francisco | August 13–17, 2012 | #sessf
Who Am I?
Co-author: The Art of SEO
President: Stone Temple Consulting
25+ person SEO and PPC firm
Trainer: Instant E-Training
Twitter: @stonetemple
Google Plus: +Eric Enge
@stonetemple / +Eric Enge
3. San Francisco | August 13–17, 2012 | #sessf
Geek Out Alert!
@stonetemple / +Eric Enge
4. San Francisco | August 13–17, 2012 | #sessf
The Google Patents
Goto:
http://patft.uspto.gov/netahtml/PTO/srchnum.htm
Then search on these numbers:
– 6,615,209
– 6,658,423
Many other patents, but there are two of the key
ones. Bring your headache meds
@stonetemple / +Eric Enge
5. San Francisco | August 13–17, 2012 | #sessf
I mean, serious meds
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6. San Francisco | August 13–17, 2012 | #sessf
Typical Web Page
Top Navigation
Left Content Right
Sidebar Specific to Sidebar
Navigation This page Navigation
Sidebar Navigation
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7. San Francisco | August 13–17, 2012 | #sessf
Input to Dupe Content Algo
Content
Specific to
This page
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8. San Francisco | August 13–17, 2012 | #sessf
Example Site
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9. San Francisco | August 13–17, 2012 | #sessf
Manufacturer Supplied Text
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10. San Francisco | August 13–17, 2012 | #sessf
Shingles
The quick brown The obtuse
fox … orangutan…
The obtuse The altruistic
=
orangutan… alligator …
The eager electric The quick brown
eel … fox …
The altruistic The eager electric
alligator … eel …
@stonetemple / +Eric Enge
11. San Francisco | August 13–17, 2012 | #sessf
One Sort Order
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12. San Francisco | August 13–17, 2012 | #sessf
Versus Another
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13. San Francisco | August 13–17, 2012 | #sessf
Faceted Navigation
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14. San Francisco | August 13–17, 2012 | #sessf
Faceted Navigation Solutions
Preferred = canonical tag
– <link rel="canonical" href="http://www.example.com/product.php?
item=swedish-fish" />
– Source:
http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonica
Backup is to No Index alternate sort orders.
@stonetemple / +Eric Enge
15. San Francisco | August 13–17, 2012 | #sessf
Simple Database Substitution
Boston is a great New York is a
place to live. great place to live.
=
Boston is the New York is the
largest city in largest city in New
Massachusetts. I York state. I like
like Boston New York
because the because the
people are so people are so
friendly. friendly.
@stonetemple / +Eric Enge
16. San Francisco | August 13–17, 2012 | #sessf
Simple Synonym Substitution
Boston is a great Boston is a
place to live. wonderful place to
=
Boston is the live. Boston is the
largest city in biggest city in
Massachusetts. I Massachusetts. I
like Boston like Boston
because the because the
people are so people are so
friendly. nice.
@stonetemple / +Eric Enge
17. San Francisco | August 13–17, 2012 | #sessf
Shingles + Synonyms
The hard to
The quick brown
understand
fox …
orangutan…
The obtuse The well meaning
orangutan…
The eager electric
eel …
= alligator …
The fast brown
fox …
The altruistic The earnest
alligator … electric eel …
@stonetemple / +Eric Enge
18. San Francisco | August 13–17, 2012 | #sessf
Query Specific!
Fruit Storage
Frodo Baggins is such a
=
Winter is part of nature’s
way of … loveable …
Storing fruit in Tupperware In the Taming of the Shrew,
with proper air ventilation the …
…
Storing fruit in Tupperware
Kardassian filters are often with proper air ventilation
used for … …
@stonetemple / +Eric Enge
19. San Francisco | August 13–17, 2012 | #sessf
Picking the Winner
2006- 2011 2011 (coming soon?)
PageRank Original Author
Trust
/ Link Equity
Authority Score
Recency Recency
Original Author
@stonetemple / +Eric Enge
20. San Francisco | August 13–17, 2012 | #sessf
Solutions
ny.com/ ny.com/?id=1234
@stonetemple / +Eric Enge
21. San Francisco | August 13–17, 2012 | #sessf
301 Redirect
ny.com/ ny.com/?id=1234
@stonetemple / +Eric Enge
22. San Francisco | August 13–17, 2012 | #sessf
<link rel="canonical" href="http://ny.com"/>
ny.com/ ny.com/?id=1234
@stonetemple / +Eric Enge
23. San Francisco | August 13–17, 2012 | #sessf
Tell the Search Engine to Ignore the
Parameter
@stonetemple / +Eric Enge
24. San Francisco | August 13–17, 2012 | #sessf
Two Lesser Solutions
No index the duplicate page
– Keeps it out of the index
– Still consumes crawl budget
– Can pass link juice back to other pages
Block crawling of dupes in robots.txt
– May still be in the index
– Saves crawl budget
– Does NOT pass link juice back to other pages
@stonetemple / +Eric Enge
25. San Francisco | August 13–17, 2012 | #sessf
Thank You!
Eric Enge
eenge@stonetemple.com
@stonetemple
+ Eric Enge
(508) 485-7751
www.stonetemple.com
@stonetemple / +Eric Enge