I'm develop sucsongmoi.net (vietnamese language) and when viewer share link of site from their wall some link facebook get description and image, some link facebook could not get description and image.
eg: share sucsognmoi.net facebook do not get description, image
but when i share: sucsongmoi.net/nau-gi-hom-nay-84.html facebook could get description and image.
I feel odd because I implement same code for this.
when I share through:
https://www.facebook.com/sharer/sharer.php?u=http://www.sucsongmoi.net/?a=1
then it works. Is that facebook cache my site (như google index)? Then how can I update it?
thanks in advance
Here is a great tool facebook provides us to deal with exactly these issues -
Meet facebook's URL Debugger. With regard to YOUR problems, you can see from this report that facebook is unable to retrieve the title & url og:tags.... this is possibly due to the non-standard character set that you are using... can you try change the og:title value to something with only regular English letters? Or alternatively placing some Unicode characters instead.
I can not see ANY og:tags in your source. You can read more about Open Graph and the og:tags on this link.
Basically you have to place these tags in your page so that facebook can know what information to take and display when a user shares your url.
For example :
<meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/>
<meta property="og:site_name" content="IMDb"/>
This will tell facebook about the image to use and the website name.
If you want to control the information that is shown when your link is posted in a Facebook status then you must add some Open Graph tags to the head section of your web page.
They are explained here: https://developers.facebook.com/docs/opengraph/
Related
I'm not sure if this is new behaviour or if it didn't work at all.
So I'm using the LinkedIn Customized URL feature, you can look it up here. The URL looks like this:
https://www.linkedin.com/shareArticle?mini=true&url=http://developer.linkedin.com&title=LinkedIn%20Developer%20Network&summary=My%20favorite%20developer%20program&source=LinkedIn
Once I share the URL the provided summary is not shown in the post preview:
So I tried with other services like Youtube, Reddit etc. and all posts do not include the provided summary.
Unfortunately I can't provide you the open-graph tags I used on my site as it's running in a corporate environment and I'm not sure if I can provide these snippets as of now.
However, running linkedin's Post Inspector shows that it detects my summary without problems:
Values are in German if anyone wonders...
So my quick and fairly simple questions, which might be answered in a comment as well, are:
Did linkedin change something on their side?
Is there some other undocumented property which neither youtube nor me included in the customized URL and therefore the summary does not show up?
Is there any post from linkedin developers which note this change?
Was it like that all the time or is it just a temporary thing?
Main Problem People are Experiencing: You cannot display BOTH an image and a description. You may only use one. Indicating an OG tag for image means your description will not display. Source: Arguing with LinkedIn Support for 2 Weeks.
LinkedIn only supports one parameter in their share content now:
https://www.linkedin.com/sharing/share-offsite/?url={url}
Source: Microsoft LinkedIn Share URL Documentation.
If you want to specify title and summary, then you need the og tags, but these are things LinkedIn associates with the URL, and it doesn't populate in the message body.
Otherwise, this works for me:
https://www.linkedin.com/sharing/share-offsite/?url=http://www.wikipedia.org/
Works fine:
If you are interested in a regularly maintained GitHub project that keeps track of this so you don't have to, check it out! Social Share URLs
LinkedIn now uses the Open Graph tags to show the preview.
Below are the og:tags that must exist and their correct format:
<meta property='og:title' content='Title of the article"/>
<meta property='og:image' content='//media.example.com/ 1234567.jpg"/>
<meta property='og:description' content='Description that will show in the preview"/>
<meta property='og:url' content='//www.example.com/URL of the article" />
And the sharing url is changed to:
https://www.linkedin.com/sharing/share-offsite/?url=your_encoded_url
Please see this Making Your Website Shareable on LinkedIn
Whenever we post any url to facebook, it extracts its data and shows the basic information like title, thumbimage etc. I just want to know how it detects whether the url contains a video and adds a play button on top of the thumbimage.
Here are a couple links to get you on the right track. The short answer is Open Graph, e.g.
<meta property="og:image" content=""some content..." />
and if those tags aren't available, in simple terms, facebook guesses.
How Does Facebook Know What Image To Parse Out of An Article?
Facebook uses the Open Graph Protocol to determine what content is being shared. It is up to the webmasters/developers to insert these tags on their content.
Webmasters - Facebook Developers
I've seen it several times on my facebook timeline where the image of a shared link is not in the post itself. Example:
https://www.facebook.com/BarakaBits/posts/1065758210116791 - Image has text on it.
screenshot
Here's the post itself: http://www.barakabits.com/2015/01/beauty-moroccos-diversity-captured-stunning-photo-series
Is this a hidden image? I'm using a wordpress blog, how can I do this? Do I need a special plugin?
Thank you in advance!
Wil
I don't know exactly what this site is doing, but you can suggest that Facebook use a specific image (not necessarily one found on the page) by using the og:image Open Graph tag. For example, something like this would go in the <head> portion of your site:
<meta property="og:image" content="http://www.barakabits.com/wp-content/uploads/2015/01/Moroccos-faces-featured-6.jpg">
As you can see from the site you referenced, you can have multiple og:image tags, and the user will be able to choose which one is displayed in the post.
Here's Facebook's guide to Open Graph tags: https://developers.facebook.com/docs/sharing/best-practices
quick question:
one tiny prob i have is when i try to share a page from my site on facebook (for example:http://pent-house.co.il/index.php/sale/52-2013-12-12-13-41-40), i cannot see thumbnails for the gallery. i see only the logo :\
is there any way that i can share the photos throw facebook?
thank you very much and have a damm nice day! XD
i wanted to shar a pic but i dont have enough reputation
You have to set an og:image meta tag like this:
<meta property="og:image" content="THE LINK TO YOUR IMAGE"/>
In the <head> of your document otherwise facebook bot uses (usualy) the biggest images he can fin. On the example page you linked to the biggest one is the logo.
Once you have set the og:image meta tag don't forget to delete facebook's cache by entering your page url on this page so you can see the modifications you make.
More information about thos meta tags and open graph here
One of the problems I face while sharing a link of my blogger post on facebook or linkedin is that the thumbnail shared is my picture (which is the only picture on the page). I would prefer no thumbnail being shared.I tried using
<meta property="og:image" content=""
I.e the content is kept as blank, yet it shows a thumbnail. How do i set it to no picture?
You can't. Facebook/Linkedin will crawl your site and decide on it's own what images to offer the user. The og:image meta tag is just a suggestion and not a directive.
The only way to share without image is for the user to remove it.
Update: there is another way. You could detect (on the server) FB/LinkedIns crawler and serve them HTML that does not contain any images. That way they wouldn't have anything to display (just text). I don't know if that's possible on blogger. And if you go down this path, check FB/LinkedIn's TOS if this is allowed (doing this with google, for instance, will get you banned).