Social Media Preview Checker
See exactly how your pages look when shared on Twitter, Facebook, LinkedIn, and Slack — and fix issues before you share.
- Results in about a minute
- Shareable report link
- Free audits stay free
Everything you need in one report
Open Graph validation
Check og:title, og:description, og:image, and og:url tags. See what Facebook, LinkedIn, and Slack will display.
Twitter Card check
Validate twitter:card, twitter:title, twitter:description, and twitter:image for proper Twitter/X previews.
Image requirements
Verify your OG image meets platform requirements — minimum dimensions, aspect ratio, and file size.
Missing tag detection
Get alerted to missing or incomplete tags that cause ugly previews or fall back to generic text.
Frequently asked questions
What are Open Graph tags?
Open Graph (OG) tags are meta tags that control how your page appears when shared on social media platforms like Facebook, LinkedIn, Slack, and iMessage. They define the title, description, image, and URL shown in the preview card.
What's the ideal OG image size?
The recommended OG image size is 1200x630 pixels (1.91:1 aspect ratio). This works well across Facebook, LinkedIn, Twitter, and Slack. Use PNG or JPG format and keep file size under 1MB for fast loading.
Do I need both OG tags and Twitter Card tags?
Twitter will fall back to OG tags if Twitter Card tags aren't present, but it's best to include both. Twitter Cards give you more control over how your content appears on Twitter/X, including the card type (summary vs. summary_large_image).
Why does my shared link show the wrong image?
Social platforms cache OG data aggressively. If you've updated your OG tags, use Facebook's Sharing Debugger or Twitter's Card Validator to clear the cache. Also check that your og:image URL is absolute (not relative) and publicly accessible.
Do social meta tags affect SEO?
Social meta tags don't directly affect search rankings, but they significantly impact social sharing engagement. Better previews lead to more clicks and shares, which drives traffic and can indirectly improve SEO through increased brand awareness and backlinks.
Related articles
URL in. Fix list out.
- 01
Enter your URL
Any public page: your homepage, a product page or a blog post.
$ audit https://yoursite.com - 02
We run 12 checks
Content, technical, security, Core Web Vitals, social tags and links, all in parallel.
checks12 / 12 ✓ - 03
Get your report
Scores, issues ranked by impact and the fix for each one. Share it with a link.
seoutils.dev/audit/…