Does it store my URL?

The page is fetched to read its tags and the result is returned to you. Requests are rate limited per IP address.

Why does my preview look different on the platform?

Platforms cache the first version they saw and use their own crops. Change the image URL when you change the image, then re-scrape.

OG image and link preview checker

Last updated: November 1, 2026

Paste a page URL and this tool reads its Open Graph and Twitter card tags, loads the preview image, shows approximate previews for X, LinkedIn, Facebook, Slack and Discord, and lists what is missing or wrong. It is free and needs no login.

What it checks

og:title, og:description, og:image and og:url are present.
twitter:card is set so X shows the large card.
The image URL is absolute and https, and it loads.
The image is at least 1200x630 and close to 1.91:1, and not unusually heavy.
Title and description are not so long that they get cut off.
og:image:alt is set.

The previews are close approximations drawn from the tags, not screenshots of each platform, and platforms cache old previews. For the exact result, use each platform's own debugger as well. Read the OG image best practices.

FAQ

Does it store my URL?: The page is fetched to read its tags and the result is returned to you. Requests are rate limited per IP address.
Why does my preview look different on the platform?: Platforms cache the first version they saw and use their own crops. Change the image URL when you change the image, then re-scrape.