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Specify Facebook thumbnail



10:08 pm on Nov 18, 2009 (gmt 0)

10+ Year Member

How, using robots.txt, can I specify which image Facebook uses as the thumbnail when the link to a specific site is posted either on someone's Facebook wall or via email?

Currently, for a particular site, there are 8 images available to choose from but none are representative of the sites' content are give a clear image of what's available on the site. So, I've created a thumbnail size screenshot of the site and would like to point the facebook bot (facebookexternalhit/1.0) to that specific image.

Is this possible?

Many thanks


10:25 am on Nov 19, 2009 (gmt 0)

10+ Year Member

I am also happy to use .htaccess if that would be easier to achieve what I want.
Is there anyone who could help with this please?
Many thanks


11:01 am on Nov 19, 2009 (gmt 0)

10+ Year Member

I found the answer and thought I'd share it:

Add the following lines to your sites index file in the <head> tags:

<meta name="medium" content="medium_type" />
<link rel="image_src" href="/path_to/your_chosen_image.jpg" />
Note this won't necessarily change the images displayed on existing wall posts and FB emails as the FB bot may not have visited your page, and thus updated the cached image, since you made the changes. However, it should ensure your_chosen_image is used in future posts.

It works for me.


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