# Messenger link preview checker

> Messenger uses the Facebook crawler and cache, shown as a rounded chat card.

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 Messenger reads (fallback order)

- Title: `og:title`
- Image: `og:image`

## Image requirements

- Recommended: 1200×630
- Minimum: 200×200
- Maximum weight: 8 MB
- Formats: JPEG, PNG, WebP

## Card layout

The image sits on top, with the title and domain below.

## Refreshing the cache

Scrape the URL again in the Facebook Sharing Debugger.

## Common problems

- The preview matches Facebook’s, so fix Facebook first.

Rule confidence: observed.