When sharing a URL on LinkedIn, you may find that the share box does not display the Open Graph image and text as it should — simply showing a grey image with the website’s domain name instead. It appears that LinkedIn’s crawler is having problems connecting to some shared URLs — this could be a network issue within LinkedIn’s network, their network provider(s), and/or a bug with their crawler. LinkedIn is aware of the issue and their response on 2015/03/16 was:
I heard back from my research team and they were able to isolate the issue. Our engineering team is working on it but there’s no estimate as to how long that might take. We’ll do our best to keep you posted.
Pinterest has published several methods that website owners can use to provide information for their Rich Pins format, including the standard Open Graph meta tags. Open Graph meta tags generally include the title, description, one or more images, but can also include product details, author information, etc. This past week I found a serious incompatibility between Pinterest’s support of the ‘article:author’ meta tag, and that of Facebook (the leading proponent of the Open Graph standard).
For the past year I’ve been working on NGFB, a WordPress plugin that adds Open Graph, Search Engine Optimization (SEO), and Twitter Card meta tags to webpage headers. It’s one of those things that all websites need, but few website owners actually know what meta tags are or look like. There are a lot of plugins for WordPress that add meta tags to webpages, but not all are created equal. ;-) This article will explain what meta tags are, why they are useful, and what makes one set more complete than another. But first, we need to get everyone on the same page…