Scope
There is an article briefly describing microbrowsers - in-app browsers used to show previews for shared hyperlinks. The microbrowsers are very simple in their implementation and usual anti-bot technics will cause them troubles to show site preview. But author of the article highlights importance of the previews.
It seems to be difficult to distinguish thousand of user looking at link previews in their messaging applications from bots running simple and rare requests.
Testing
Check that common applications can show hyperlink preview if advanced security features (like cookies, JS-challenges) are used.
Scope
There is an article briefly describing microbrowsers - in-app browsers used to show previews for shared hyperlinks. The microbrowsers are very simple in their implementation and usual anti-bot technics will cause them troubles to show site preview. But author of the article highlights importance of the previews.
It seems to be difficult to distinguish thousand of user looking at link previews in their messaging applications from bots running simple and rare requests.
Testing
Check that common applications can show hyperlink preview if advanced security features (like cookies, JS-challenges) are used.