Specify facebook thumbnail image

general thumbnail image for fb

[TheKiller]

Hello,

When i am sharing a page from my site, i would like to have it show a thumbnail.

I already tried these two methods but they would not work.

<meta property="og:image" content="site_logo.png"/>
<link rel="image_src" href="site_logo.png" />

It used to work with the image_src piece but now it doesnt.

Does anyone know how to add a facebook thumbnail? Does it have to be named a certain way.. be a certain size to work? Thanks in advance ! :)

I would like for example to have the site logo show on all shared links.

[edited by: incrediBILL at 7:45 pm (utc) on Apr 26, 2015]
[edit reason] URls removed. No Site Reviews. Please see forum charter and TOS. [/edit]

[Hoople]

Go to [developers.facebook.com...] enter the url and click the 'debug' button. See what it shows for your site's page that is presently in the facebook cache.

Then trigger it to refresh the cached page data by clicking 'fetch new scrape information' and see if this clears the issue.

[TheKiller]

I did this and the image still does not appear in the thumbnail. But it detects the og:image.
Can i post the link for you to scan it using that tool and look at? I really dont understand what incrediBILL issue was with me sharing the url.

Edit: Its working ! Thank you Hoople ! I had to fetch it once to load the tag, and then again to load the thumbnail.
:)