A clear social headline for your page
Explain what someone will find after opening the link, using one concrete and useful sentence.
See how an image, headline and description work together when someone shares your link.
The reader may see your link without the surrounding article, menu or brand story. Give the image, headline and description separate roles instead of repeating the same sentence three times.
og:url; it is not a replacement for the page's canonical link tag.Check that the image URL opens without a login and points to an image, not a page containing it. The preview loads that image from its host, so use a public asset you intend to share.
A sharing service may have cached the previous metadata. Publish the tags first, then recheck the live URL with that service's debugger or refresh tool.
The generated tags follow the Open Graph fields shown above and request a large Twitter-style card. Platforms decide their final presentation.