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Update metadata for Facebook, Twitter & LinkedIn

Facebook, LinkedIn and X store a copy of the title, description and image of a link when it is first shared, so a shared Maglr link can keep showing old information after you change it. To update that link preview, change the values in Maglr, publish the project live, and then run the page URL through the platform's own tool so it reads your page again.



When someone shares a link to a Maglr page on Facebook, LinkedIn or X, the platform reads the page's title, description and image and builds a link preview from them. The platform then keeps that preview in its cache. If you change the title, description or image in Maglr and publish again, the page itself is updated, but the platform keeps showing the cached preview until it reads the page again. The Facebook Sharing Debugger and LinkedIn Post Inspector make the platform read the page again right away.



A shared Maglr link shows the page's meta title, meta description and page thumbnail. To change them for one page:


  1. In the dashboard, open the project and hover over the page in the page overview.
  2. Click the wrench icon (Page settings).
  3. Go to the SEO tab and fill in Meta title and/or Meta description.
  4. To change the image, go to the Page thumbnail tab, click Select and choose the image to use as an alternative thumbnail.
  5. Click Save.
  6. Click Publish and then Publish live.


A page without its own Meta title uses its page title followed by the project's meta title, or by the project title if the project has none. A page without its own Meta description uses the project's meta description, or otherwise the default of the navigation environment. For all the places these values can be set, see Set up the correct metadata.


Changes reach a shared link only after you publish the project live. If you refresh a preview on Facebook or LinkedIn before that, the platform still shows the old information.



The image in a link preview is the page thumbnail: the automatic screenshot of the page, or the alternative thumbnail you chose in Page settings > Page thumbnail. When you publish, Maglr crops this thumbnail to a landscape image of 1200x675 pixels, starting from the top. If the thumbnail is taller than this landscape shape, its bottom part is cut off in the preview. If it is wider, its left and right edges are cut off.


Refreshing the preview on Facebook


To make Facebook show the current title, description and image of a published Maglr page:


  1. Open the Facebook Sharing Debugger.
  2. Paste the URL of the published page and click Debug.
  3. Click Scrape Again to load the new title, description and image.


Publish the project live in Maglr before you do this, or Facebook reads the old information again.


Refreshing the preview on LinkedIn


To make LinkedIn show the current title, description and image of a published Maglr page:


  1. Open the LinkedIn Post Inspector.
  2. Paste the URL of the published page and click Inspect.


LinkedIn reads the page again when you inspect it, and new posts with that link show the updated preview. Publish the project live in Maglr before you do this, or LinkedIn reads the old information again.



X (formerly Twitter) has no tool to force a refresh of a link preview. X reads the page again on its own after some time. To check what the preview of a published Maglr page looks like on X, paste the page URL into a new post without posting it.


Frequently asked questions



Facebook, LinkedIn and X keep a cached copy of a link preview. First make sure you published the project live in Maglr after changing the page thumbnail, because a shared link only shows changes that are published live. Then refresh the preview with the Facebook Sharing Debugger (Scrape Again) or the LinkedIn Post Inspector (Inspect). X has no refresh tool and updates the preview over time.



When you publish, Maglr crops the page thumbnail to a landscape image of 1200x675 pixels, starting from the top. If the thumbnail is taller than this landscape shape, its bottom part is cut off. If it is wider, its left and right edges are cut off. To control what is shown, choose an alternative thumbnail in Page settings > Page thumbnail, click Save and publish the project live.


Do posts I already shared update too?


Not always. Refreshing a preview makes the platform read your page again, so new shares of the link show the updated title, description and image. Whether posts that were already published show the new preview depends on the platform, so they may keep showing the old one.

Updated on: 19/10/2026