Open Graph & Social Preview Checker

Social previews are your first impression

When your article, product page, or careers post is shared on LinkedIn, Slack, or X, the Open Graph and Twitter Card meta tags determine the title, description, and image strangers see before they click. A missing og:image or truncated title can cut click-through rates dramatically—especially for B2B content distributed by executives and employees.

Cavecrack's social preview checker lets you validate those tags without deploying to production or fighting CORS from a live URL fetcher. Paste HTML from staging, a local build, or a CMS preview link export. We parse og:title, og:description, og:image, og:url, twitter:card, and fallbacks like the document title and meta description.

Built for marketing and web teams

Campaign managers can sanity-check launch assets before scheduling posts. Developers can verify headless CMS fields map to the right properties. Demand-gen teams can compare how the same URL might look across networks. If you are rebuilding your marketing site, this tool belongs in every release checklist alongside Lighthouse and structured-data checks.

How to use it

1. View page source or inspect the document head in DevTools.
2. Paste full HTML or just the meta tag block into the tool.
3. Generate previews and review warnings about weak or missing tags.
4. Update CMS SEO fields or templates, then re-check before launch.

Limitations

Previews are approximations. Slack, LinkedIn, and X may cache cards after first share—use their debuggers for cache busting on production URLs. This tool does not validate image dimensions server-side or confirm that image URLs are publicly reachable.

Tag checklist for B2B content teams

At minimum, ship og:title, og:description, og:image, and og:url on every indexable template. Add twitter:card set to summary_large_image when you have a strong hero visual. Keep titles under roughly seventy characters when possible and write descriptions as compelling one-liners—not keyword dumps. For careers and culture posts, a distinctive image dramatically improves engagement when employees share links internally on Slack.

When social metadata is inconsistent across subdomains or locales, the problem is usually template architecture—not individual posts. Cavecrack helps marketing and engineering teams align on a single source of truth for SEO fields in headless CMS models. Start a conversation via contact if previews keep breaking after CMS changes.