I found out that thecodingtrain.com doesn't have [OpenGraph](https://ogp.me/) and [twitter card](https://developer.twitter.com/en/docs/tweets/optimize-with-cards/overview/markup) meta tags. https://github.com/CodingTrain/website/blob/a2d8a52867e20ee246878dcc092237081670e891/_jekyll/includes/2-base/head.html#L48-L49 Tools for debugging: - **Twitter** https://cards-dev.twitter.com/validator - **Facebook** https://developers.facebook.com/tools/debug/sharing/
I found out that thecodingtrain.com doesn't have OpenGraph and twitter card meta tags.
https://github.com/CodingTrain/website/blob/a2d8a52867e20ee246878dcc092237081670e891/_jekyll/includes/2-base/head.html#L48-L49
Tools for debugging: