OG Link Preview

Preview how links look when shared, validate Open Graph tags, and see which AI crawlers can read the page.

OG Link Preview lets developers and content creators instantly inspect Open Graph and Twitter Card meta tags on any webpage — and see exactly how links will look when shared on social media. Works on localhost, staging, and production sites. No page source digging needed. KEY FEATURES 🔍 Meta Tag Inspector • View all og: and twitter: tags in one place • Organized in tabs for quick browsing • Fallback detection from standard <title> and <meta name="description"> tags • JSON-LD structured data, with invalid blocks flagged Realistic Social Previews See how your link will render on: • Facebook — title, description, image card • Twitter/X — summary and summary_large_image card layouts • LinkedIn — title, site name, and image • Slack — unfurl preview format • WhatsApp — the green bubble, image, title, description, and domain 🤖 AI Crawler Access • See whether the major AI crawlers and assistants can read the page you're on • Per-page verdicts using real robots.txt longest-match rules, so a blocked /cart doesn't make your product pages look blocked • llms.txt detection, reported as information rather than as a failing check Validation & Scoring • Errors for missing og:title, og:description, og:image • Warnings for og:url, og:type, twitter:card, and character limits • Image checks — real pixel dimensions, aspect ratio, broken URLs, and mismatches against declared width/height • Duplicate tag detection, canonical og:url mismatches, and missing og:image:alt • Verdict banner at a glance, with passing checks tucked away • Client-side rendering detection — warns when OG tags are injected by JavaScript only, or differ from the server HTML, so crawlers see something other than you • Crawler-accurate previews — when CSR-only tags are detected, previews, validation, and tag lists show what crawlers actually see • One-click re-scrape via Facebook, LinkedIn, and Google Rich Results debuggers PERFECT FOR • Developers testing metadata before launch • SEO and marketing teams auditing pages • Content creators checking how posts will preview • QA teams verifying staging vs. production No data is collected or sent anywhere. The extension reads the current page's metadata and the site's own robots.txt and llms.txt files, all locally in your browser.