Hello,
We apologize for the issue you are facing with the Open Graph image and description not appearing when sharing your website on WhatsApp. Thank you for providing the screenshot and details about your site.
Here are a few things you can check to troubleshoot this issue:
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Check Open Graph Settings: Ensure that you have set the Open Graph image and description correctly in the Rank Math Meta Box for the specific pages you are sharing. You can do this by going to the WordPress Dashboard → Rank Math → Titles & Meta → Social tab.

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Image Format and Dimensions: Make sure that the image you are using meets the recommended dimensions of 1200px X 630px and is in a supported format (JPEG, PNG, GIF, WebP). If the image is too small or in an unsupported format, it may not display correctly.
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URL Accessibility: Check if the page URL and Open Graph image URL are accessible. You can use a URL checker like httpstatus.io to verify that your URLs return a status code of HTTP 200.

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Check Page Source: Right-click on your page and select "View Page Source" to see if the og:image
tag is present in the source code. If it’s missing, Rank Math may not be configured correctly or there could be a conflict with another plugin or theme.

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Plugin Conflicts: If you suspect there might be a conflict with other plugins or your theme, you can follow our troubleshooting guide to identify any issues.
If you have checked all these points and the issue persists, please reply to this ticket with your website URL so that a human agent from our support team can assist you further.
Thank you for your understanding, and we look forward to resolving this issue for you!
Sources:
Open Graph/Social Preview Image Is Not Displayed » Rank Math
Open Graph/Social Preview Image Is Not Displayed » Rank Math
Hello,
Your website is returning an error 418 URL returned a bad HTTP response code.
:
https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Fbe3.fr%2Freservez-votre-massage-tantrique-ou-californien-a-marseille%2F
Also, this is the status upon checking the site using https://httpstatus.io/:
Unable to verify the first certificate.
In this case, we recommend getting in touch with your web host to fix the status of your site as it should be 200 OK status.
Looking forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.