Input
Previews
Enter a URL and click Preview to see how it looks when shared.
Open Graph image sizes — platform-by-platform
| Platform | Aspect ratio | Recommended size | Max file size |
|---|---|---|---|
| 1.91:1 | 1200 × 630 | 8MB | |
| 1.91:1 | 1200 × 627 | 5MB | |
| Twitter (summary_large_image) | 2:1 | 1200 × 600 (or 1200 × 630 — works) | 5MB |
| Twitter (summary) | 1:1 | 240 × 240 minimum | 5MB |
| Slack | uses og:image | 1200 × 630 | — |
| Discord | uses og:image | 1200 × 630 | — |
| 1.91:1 | 1200 × 630 | 600KB (sometimes) | |
| 2:3 (vertical) | 1000 × 1500 | 10MB |
One image at 1200 × 630 PNG or JPEG covers almost every platform. Under 500KB keeps WhatsApp happy. Pinterest is the only case where a second, vertical variant pays off.
Forcing a cache refresh when previews look stale
Every social platform aggressively caches the OG metadata they fetched when your URL was first shared. After updating og:image / og:title, you must force a re-scrape:
- Facebook: developers.facebook.com/tools/debug — paste URL → Scrape Again.
- LinkedIn: linkedin.com/post-inspector — paste URL.
- Twitter / X: Card Validator was retired. Tweet and delete the tweet to force re-fetch, or add a cache-buster query string (
?v=2). - WhatsApp: no official debugger. Cache-buster query string (
?wa=2) is the workaround. - Slack / Discord: cache expires in 24 hours; can't force. Append
?v=2to the URL.
Frequently Asked Questions
How do I preview how my page looks on Facebook, Twitter, LinkedIn?
Enter a URL. The tool fetches the page, extracts Open Graph and Twitter Card meta tags, and renders previews exactly as Facebook, Twitter, LinkedIn, Slack and Discord display them. Spot missing or wrong tags before you ship.
What Open Graph tags do I need for good social sharing?
Minimum: `og:title` (60 chars), `og:description` (200 chars), `og:image` (1200×630), `og:url` (canonical), `og:type` (website or article). For Twitter add `twitter:card: summary_large_image`. Our tool shows exactly what's missing.
Why is my Facebook preview broken or showing the wrong image?
Facebook aggressively caches. After fixing tags, use Facebook's Sharing Debugger (`developers.facebook.com/tools/debug`) and click Scrape Again to refresh. LinkedIn: Post Inspector. Twitter: Card Validator. Our tool shows what the latest tags look like, then force a re-scrape per network.
What size should my og:image be?
Facebook: 1200×630 (1.91:1). Twitter summary_large_image: same. LinkedIn: 1200×627. Pinterest: vertical (1000×1500) works best. Under 200KB file size. JPEG or PNG. The preview tool flags images that are too small or wrong aspect ratio.
Does Open Graph affect SEO ranking?
Indirectly. Strong OG = more click-throughs on social shares = more traffic and backlink signals. Google doesn't use OG tags directly but Bing sometimes does. Main benefit: better social CTR.
Smarter quality checks. Faster deployments.
Better apps.
