# Discord Link Preview & Embed Checker — Free

> Paste a URL to see the embed Discord draws from your tags — site name, title, description, image and the colour bar from theme-color — with the image checked against Discord's documented formats (PNG, GIF, JPG, WebP, AVIF).

Page: https://shareglint.com/en/tools/discord-link-preview

## What Discord needs

- Discord reads `og:site_name`, `og:title`, `og:description` and `og:image`.
- With `twitter:card` set to `summary_large_image` the image is shown large under the text; otherwise it tends to appear as a small thumbnail.
- `<meta name="theme-color">` sets the colour of the embed's left bar.
- Documented image formats: PNG, GIF, JPG, WebP, AVIF.
- The crawler is `Discordbot`.

## Discord link preview not showing or not updating?

- Image too small? Add `twitter:card = summary_large_image`.
- Discord keeps a preview for a while (about 30 minutes). For a new one now, add a query string to the URL.
- Let `Discordbot` through robots.txt and bot protection.
- Use one of PNG, GIF, JPG, WebP, AVIF for the image; SVG is not among them.

## Questions

### How do I get a big image in a Discord embed?

Add <meta name="twitter:card" content="summary_large_image"> next to og:image. Discord shows the image large under the text instead of as a thumbnail.

### How do I change the colour of the Discord embed bar?

Set <meta name="theme-color" content="#ff7a18"> (any colour) in the page head.

### Why does Discord show an old embed?

Discord caches embeds for a short time. Wait, or post the URL with a query string to get it fetched again.