Our recent blog post on starting a blog got me thinking about common questions I and other team members see with blog posts and social media. You’ve written a great blog post, and now you’re sharing it to Facebook. What can you do to ensure that your blog post looks awesome when you share it? It’s really a lot easier than you’d think.
Images
If you want an image to display with your post (and let’s be honest, your share is a lot more eye-catching if it includes an image), Facebook provides clear guidelines on what you need to do to have the best results.
For a larger banner-sized image with your share, make sure your image is at least 600 x 315 or larger.
Anything smaller than that will display next to post information. The bare minimum for an image to be used at all is 200 x 200.
Facebook also recommends that your image ratio be as close to 1.91:1 as possible to prevent cropping.
Text
Facebook will scan your post and select title and text information for your post automatically. If you want to control that in specific, click on Post Options to the lower left while editing your post and enter an SEO title and SEO description. Facebook will use these instead.
As you can see from what I entered above, that information plus the large image I used in my test resulted in the share looking like this:
Two more tips:
- If you decide to change something or if something doesn’t look right, you’ll need to request Facebook re-scrape your site. They have a handy debug tool which you can use to clear their cache and fetch new information: https://developers.facebook.com/tools/debug/
- If you have multiple images in your post and Facebook isn’t using your preferred image, use the debug tool above to clear Facebook’s cache, then share the URL of the post yourself again right on Facebook. You should get an option to pick through available images.
That's a really great question, @PaulyPUK. Offhand I'm not sure whether it's possible to set up sharing to a group like a page or profile, although I'd recommend suggesting that on our Vote on Features board:
https://community.weebly.com/t5/Vote-on-Features/idb-p/IdeaExchange
If it's possible for our engineers to develop that I'm sure other users would love to have the option. 
Thanks for responding Adam. No, When you share the home page it captures the SEO description on one random photo and shows all the photos on the homepage to choose from. But it doesnt show the sidebar photos.??? I'm trying to use Filament Flare. I've had such a hard time getting share buttons to work. I'm getting very discouraged 
If there is no image in an individual post, FB will use the RSS Feed logo. Looks terrible. I'd like to set an image for the whole site which OpenGraph will use as a default in the event there is no image found within the post itself.
I have several clients who share only a video and some text in a single blog post. FB doesn't pick up the thumbnail image from the video so when I share one of these blog posts to FB the thumbnail image is usually a overzoomed RSS Feed logo - apparently the only image it can find in the post.
I'd like to establish a default image that will be supplied whenever a single post doesn't have an image. I don't see a Weebly site setting allowing me to set such a default image. I assume I can include that with some kind of code in the header or footer, but I'm not a coder. Can you help me or direct me to a resource to figure this out?
