# Discord embed preview checker

> Discord renders an embed coloured by theme-color, with the site name, title, description and image.

Check a URL: https://sharelint.pages.dev/?url=<your-url>, or as Markdown: https://sharelint.pages.dev/api/preview?format=md&url=<your-url>

## Tags Discord reads (fallback order)

- Colour bar: `theme-color`
- Title: `og:title` -> `twitter:title`
- Description: `og:description`
- Image: `og:image` -> `twitter:image`

## Image requirements

- Recommended: 1200×630
- Minimum: none documented
- Maximum weight: none documented
- Formats: JPEG, PNG, GIF, WebP

## Card layout

twitter:card summary_large_image gives a full-width image. Otherwise a thumbnail shows on the right.

## Refreshing the cache

Discord caches embeds for a while. Append a query string to see changes.

## Common problems

- A grey left border: add <meta name="theme-color" content="#hex">.

Rule confidence: observed.