分享錯誤測試工具

The debugger outputs a list of all the data and resources that Facebook pulls from your Open Graph object. If there are missing tags or other errors when trying ...

Facebook needs to scrape the page at least once by someone clicking on it to cache the image. Subsequent shares will then be able to display the image.

In this article we explain how to use Facebook's OpenGraph Object Debugger to resolve issues sharing content on Facebook. Scrape URL · Evaluate Results

Facebook will randomly take posts I have shared on a company page and make the preview image blank/white. It is maddening. Here's what I do to replicate.

The og:image tag can be used to specify the URL of the image that appears when someone shares the content to Facebook.

But when I'm sharing in Messenger, just the url and domain show up, no image at all. Open Graph.

Here's the general guidance: For Meta tag try debugging with the Sharing Debugger (https://developers.facebook.com/tools/debug/).

Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags.

To see how your markup appears to the Facebook Crawler enter a URL into Sharing Debugger. It will show which meta tags the crawler scrapes as well as any errors ... Using Objects · Getting Started · Specify a Canonical URL · Optimizing

分享除錯工具可讓你預覽內容分享到Facebook 後的呈現方式，以及偵測開放式圖表標籤的任何問題。 登入Facebook 即可使用此工具。