Linkedin sharing urls / not parsing open graph

Question

The Linkedin documentation can be found here

As it says, it needs:

og:title
og:description
og:image
og:url

Here is an example of my wordpress blog source code that for simplicity I use Jetpack plug-in:

<!-- Jetpack Open Graph Tags -->
<meta property="og:type" content="article" />
<meta property="og:title" content="Starbucks Netherlands Intel" />
<meta property="og:url" content="http://lorentzos.com/starbucks-netherlands-intel/" />
<meta property="og:description" content="Today I had some free time at work. I wanted to play more with Foursquare APIs. So the question: &quot;What is the correlation of the Starbucks Chain in the Netherlands?&quot;. Methodology: I found all the p..." />
<meta property="og:site_name" content="Dionysis Lorentzos" />
<meta property="og:image" content="http://lorentzos.com/wp-content/uploads/2013/08/starbucks-intel-nl-238x300.png" />

In Facebook it works great, or you can see the meta data here. However LinkedIn is more stubborn and doesn't really parse the data even the If you're unable to set Open Graph tags within the page that's being shared, LinkedIn will attempt to fetch the content automatically by determining the title, description, thumbnail image, etc.

I know that I don't have the og:image:width tag but Linkedin doesn't even parse title, description or url. Any ideas to debug it?

Answer 1

After a long trial and error I found out that my .htaccess was somehow blocking the Linkedin robot (wordpress site). For those who use the ithemes security plugin for wordpress or another security plugin make sure that LinkedIn is not blocked.
Make sure there is no line like: RewriteCond %{HTTP_USER_AGENT} ^Link [NC,OR]

The easiest way to check is to use wordpress default htaccess lines.

As mentioned before, make sure you don't retry cached pages in linkedin.

Answer 2

You can try this only once a week! I had a link to my site and I wanted to customize the image Linkedin displayed. So I added open graph tags which didn't seem to render at all. Until I read this:

The first time that LinkedIn's crawlers visit a webpage when asked to share content via a URL, the data it finds (Open Graph values or our own analysis) will be cached for a period of approximately 7 days.

This means that if you subsequently change the article's description, upload a new image, fix a typo in the title, etc., you will not see the change represented during any subsequent attempts to share the page until the cache has expired and the crawler is forced to revisit the page to retrieve fresh content.

https://developer.linkedin.com/docs/share-on-linkedin

Answer 3

If you're sure you've done everything right (using open graph meta tags, no errors on validator.w3.org) and it still is not working, be sure to try it with a different page, it might be a LinkedIn cache thing.

I had a <h1>Project information</h1> on my page, which LinkedIn used as the title for sharing the page, instead of the <title> or <meta property="og:title" [...]/> tag. Even though I did everything right. But when I completely removed this <h1>Project information</h1> from the page source, it kept using 'Project information' as the title even thought it wasn't on the page anymore.

After trying a different page, it worked.

Answer 4

This was happening on one of my client's sites as well. I discovered that the .htaccess file was blocking the site from LinkedIn if the user-agents contained the string "jakarta".

As soon as I remove this filtering, LinkedIn was able to access all of the required the OpenGraph (og) information when the client would post a link.

Answer 5

My very first suggestion is appending a meaningless query to the URL, so that LinkedIn thinks it's a new link (this doesn't affect anything else) i.e.:

http://example.com/link.php?42 or http://example.com/link.html?refid=LinkedIn

If that doesn't suit your needs, a more drastic measure is in order.

After making sure you don't have any errors in your console and validating your site using: http://validator.w3.org/...

Add the prefix attribute to every tag (not to html tag), then re-sign in with your LinkedIn account to clear the cache...

prefix="go: http://ogp.me/ns#" i.e.:

<meta prefix="og: http://ogp.me/ns#" property="og:title" content="Title of Page" />
<meta prefix="og: http://ogp.me/ns#" property="og:type" content="article" />
<meta prefix="og: http://ogp.me/ns#" property="og:image" content="http://example.com/image.jpg" />
<meta prefix="og: http://ogp.me/ns#" property="og:url" content="http://example.com/" />

I hope one of these three solutions works for someone. Cheers!

Answer 6

I stumbled about the same problem for our Wordpress site. The problem is created by conflicting OGP and oembed headers in standard wordpress + yoast / jetpack seo plugin.

You need to disabled the oembed headers with this plugin (this has no side effects): https://wordpress.org/plugins/disable-embeds/

After that you can force a fresh link preview by appending a ?1 as some of you guys already pointed out!

I hope that fixes your problem.

I wrote a detailed explanation for the problem here: https://pmig.at/2017/10/26/linkedin-link-preview-for-wordpress/