OG Image Size: Check Yours Against 1200×630
The standard OG image size is 1200×630 pixels, a 1.91:1 ratio — Facebook recommends at least that, LinkedIn asks for at least 1200×627. Enter a URL to check that your og:image loads, measure its real pixel size and format, and preview how it crops on Facebook, LinkedIn, X and Slack.
We download the start of your og:image file and read its real dimensions and format from the file header — not from what your tags claim. Free, no signup. Updated Oct 24, 2026 by the AEOeye team.
What size should an OG image be?
1200×630 pixels covers every major platform. Meta recommends images of at least 1200×630 for the best display on high-resolution screens and a ratio as close to 1.91:1 as possible; LinkedIn's minimum is 1200×627 at the same ratio, with a 5 MB file limit. Meta's own file limit is 8 MB, and anything under 600×315 gets a small thumbnail instead of a large card.
OG Image Checker: Is Your og:image Actually Loading?
A tag pointing to a missing or blocked file is worse than no tag, because platforms show a broken or empty card. We request the file itself and report its status, real pixel size, format and weight.
We also compare it with your og:image:width and og:image:height tags. Meta uses those to render the image on the very first share; if they're wrong, the first share can go out without a picture.
Open Graph Image Checker for Facebook, LinkedIn and X
Every platform reads the same og:image, but each crops it differently. SVG doesn't work on Facebook, LinkedIn or X — use PNG, JPEG or WebP — and very large files may simply time out.
OG Image Test: Preview the Crop on Every Platform
The previews show where each platform cuts. Keep text and logos inside the central safe area, roughly the middle 1000×500 pixels, so a square or narrower crop doesn't slice off your headline.
What do big sites use?
Mostly the standard. When we measured the og:image of 270 big-brand homepages in October 2026 (dataset), the median width was exactly 1200 pixels, 40% were exactly 1200×630 and 71.9% were within a hair of 1.91:1. PNG led (166 images) ahead of JPEG (87) and WebP (14).
But only 34.6% declared the image size in their tags, and 13.3% of homepages had no og:image at all. Make one in seconds with the OG image generator, then check every other tag with the Open Graph checker.
One page checked. What about the rest of your site?
The free SEO audit crawls your site and scores ~90 checks across 7 areas — with the evidence and the fix for each problem.
FAQ
What is the best OG image size?
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1200×630 pixels at a 1.91:1 ratio. It meets Meta's recommendation and LinkedIn's minimum of 1200×627, and it still looks sharp when platforms scale it down.
Why is my OG image not showing?
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Usually the file returns an error, is blocked to the platform's crawler, is in an unsupported format such as SVG, or the platform cached an older version. This checker tests each of those.
Should I add og:image:width and og:image:height?
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Yes. Meta says declaring the dimensions lets its crawler render the image on the first share without downloading it first. Make sure the numbers match the real file.
Sources
Related free tools
OG Image Generator
Free OG image generator: type a title, pick a layout, download a 1200×630 PNG that stays readable when Facebook, LinkedIn, X and Slack crop it.
Open Graph Checker
Free Open Graph checker: validate og:title, og:description, og:image, og:url and og:type on any URL, catch broken tags and see the fix for each.
Link Preview
Free link preview tool: see how a URL looks on Facebook, LinkedIn, X, Slack, Discord and iMessage — from the tags each platform actually reads.
Facebook Sharing Debugger
See what Facebook scrapes from your URL: we fetch it as facebookexternalhit, show the og: tags and image it uses, and explain how to force a re-scrape.
Twitter Card Validator
X retired its Card Validator. Paste a URL to preview your X card, see which tags X reads (twitter: vs og: fallbacks) and fix image errors.