Duplicate Content: Canonicalize it!

15 april 2010, CAC Amsterdam

Duplicate Content

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Duplicate contentDuplicate content

Introductie

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Mathieu BurgerhoutSEO consultant

Marketeer

Technique

Search Enginesgeek apple

wordpresstechno SEO usability

Netsociety Webshoptimizer

Programme

• What is duplicate content?

• How to prevent duplicate content

• Canonical tag best practices

• Questions

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What is duplicate content?

• Dictionary:

{An identical copy}

• Google:

{indicates identical or even similar content on different websites and results in penalties from search engines}

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What is duplicate content?

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www.seomoz.com

What is duplicate content?

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www.seomoz.com

What is duplicate content?

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www.seomoz.com

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What is duplicate content?

www.seomoz.com

Supplemental results

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Types of duplicate content

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The Classic

Duplicate content

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Duplicate content

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Duplicate content: solution

• Permanent 301 redirect- Non-www to www

- Trailing slash

- Index.php ↔ /

• Bi-languals- Make the content differ

- Combine domains

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Types of duplicate content

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The Ugly

Duplicate content

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That’s ugly!

Duplicate content

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OMFG!!!

Duplicate content

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Duplicate content: solution

• Canonical tag- Point to the ‘clean’ URL

• Exclude filter/sort pages- Robots.txt

- Meta noindex

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Types of duplicate content

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The Lazy

Duplicate content

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Duplicate content

• Don’t copy/paste

• Make it unique- Mash ups

- Reviews

• 302 redirect

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Types of duplicate content

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The Unavoidable

Duplicate content

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Duplicate content

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Duplicate content: solution

• Enough content- Overrule footer/menu with… content

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Canonical tag

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Poor man’s 301

Canonical tag does…

• Only redirect search engines

• Is an “alternative” for a 301

• Can be used cross domain

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Canonical tag does not…

• Redirect visitors

• Work instantly

• Solve your problems (i.e. get your site right)

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Identifying canonicalization

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• Mathieu “Matt” Burgerhout• mathieu@webshoptimizer.nl• www.webshoptimizer.com• http://twitter.com/MathieuSEO• http://linkedin.com/in/zoekmachinespecialist• http://www.slideshare.com/webshoptimizer

Questions?