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How to Use the Canonical URL Tag to Avoid Duplicate Content PowerPoint PPT Presentation

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 Bing

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How to Use the Canonical URL Tag to Avoid Duplicate Content

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The Canonical URL Tag

How to Use the Canonical Tag to Avoid Duplicate Content Filters in Google, Yahoo & Live

Helen M. Overland

MsSEM.com

Helen M. Overland


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The Canonical URL Tag

  • Contents

  • Who Am I?

  • What is Duplicate Content and Why is it a Problem?

  • What is the "Canonical" Tag?

  • What are the Limitations of the Canonical Tag?

  • How to Add the new Canonical Tag to Your Website

  • Further Coverage

Helen M. Overland


The canonical url tag who am i l.jpg

The Canonical URL TagWho Am I?

  • Director, Search Engine Marketing with non~linear creations – www.nonlinear.ca

  • Projects with large well-known brands

  • Proven Success: Demonstrated increases in sales and traffic year over year on large & small budgets

  • Over a decade of experience

  • Speaker at marketing conferences such as Search Engine Strategies, Search Marketing Expo, PodCamp Toronto

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

Search Engines visit your website and try to determine what pages you have

If two pages are very similar, one

of them might be flagged as

“duplicate content”

I love fresh, unique and quality content!

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

To Search Engines, these may all be DIFFERENT pages:

http://www.example.com/

http://example.com

http://www.example.com/index.php

http://example.com/index.php?disp=home

... Even though these URLs are all

just your single home page

Which One is Right???

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

So the search engine "guesses" which is the "right" page

http://www.example.com/

http://example.com

http://www.example.com/index.php

http://example.com/index.php?disp=home

I pick... uh...

THAT one!

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

If the search engine only visits a few pages on your site, and most are duplicate URLs, some of your "real" pages might not get spidered

http://www.example.com/

http://example.com

http://www.example.com/index.php

http://example.com/index.php?disp=home

Whew... I'm done for the day here

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

So we use 301 Redirects to control where people go

Redirect all people from:

http://www.example.com/

http://www.example.com/index.php

http://example.com/index.php?disp=home

To:

http://example.com

Ah ha! I See!

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

But 301 redirects have limitations. What if you are a retailer who advertises through affiliate websites?

http://www.example.com/products/white-runner

http://www.example.com/products/white-runner?affiliate=123

Which link gets listed in search

results pages?

Now which one do I index?

Helen M. Overland


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The Canonical URL TagWhat is Duplicate Content and Why is it a Problem?

And it's hard to make 301 Redirects handle unforeseen circumstances

Consider the following somewhat unfortunate URL…

Helen M. Overland


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The Canonical URL Tag

Oh dear.

Helen M. Overland


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The Canonical URL TagWhat is the "Canonical" Tag?

On many CMS systems and websites, people can add on whatever additions to the URL they like, and the page will still work.

If a URL returns a valid page, and is

linked to enough times, or is linked to

from a highly authoritative domain,

the URL may be indexed.

Hmm... that URL seems to be popular, I'll add it right now

Helen M. Overland


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The Canonical URL TagWhat is the "Canonical" Tag?

Google, Yahoo and Microsoft realized this was a problem for people.

So they created the new "Canonical“ tag

The "Canonical" tag is a way for you

to declare the "official" URL of the

page – no matter what's extra in the URL

The "Canonical" page is the “true“ URL of the

page

Here we come to save the day!

Helen M. Overland


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The Canonical URL TagWhat are the Limitations of the Canonical Tag?

Search engines seem to be getting smart to spam tactics before they launch new features

The canonical tag will only work on

your domain

The content of the canonical page

must be very similar to the page

that points to it

You can't fool me this time, spammers!

Helen M. Overland


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The Canonical URL TagHow to Add the new Canonical Tag to Your Website

The canonical tag is a simple tag that is added to the <HEAD> area of your webpages

It looks like this:

<link rel="canonical"

href="http://www.example.com/products/white-runner" />

..Just add the "real" URL to each page on your site by using this tag

Helen M. Overland


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The Canonical URL TagHow Does the Canonical Tag Help?

Search engines will now have a hint as to which is the "real" page

http://www.example.com/index.php

http://www.example.com/index.php?unfortunate=link

Which can help stop URLs you don't

want from being indexed

No, that's probably not right

Helen M. Overland


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Thank You!

Helen M. Overland (a.k.a. semlady)

[email protected]

MsSEM.com

nonlinearcreations.com

Follow me! twitter.com/semlady

Get more information on the

Canonical Tag here:

mssem.com/library/url-canonical-tag.php

That's One Smart Lady!

Helen M. Overland


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