CardScopeFree check
Telegram link preview checker
Checks the safe Open Graph tags for Telegram.
Uses the email from Checkout. If that address paid, we send the same key.
What we check for Telegram
From this fetch. Not Telegram’s preview.
Telegram preview
Telegram doesn’t publish which tags its link previews read. This check looks for the Open Graph set most apps use: og:title, og:description, and og:image. An absolute https:// image that loads without a login is the safe choice. Relative and http images are a common reason the picture is missing.
Telegram keeps its own copy of the preview. This check reads the page now. It does not refresh Telegram. WhatsApp and Telegram link preview