Validator Card Checker

The Validator Card Checker analyzes a web page's social card metadata to ensure Open Graph and Twitter Card data are present and accurate. It verifies required fields such as og:title, og:description, og:image, og:url, and twitter:card, twitter:title, twitter:description, twitter:image, along with image URL accessibility. Conceptually, it treats card metadata as a contract between a page and social platforms; by inspecting tags and image resources, it determines whether the shared content will render consistently in feeds.
The tool fetches the target URL, parses HTML, collects meta tag values, and cross-checks them against platform-specific requirements. It flags missing or malformed values, checks image dimensions and aspect ratios, and flags cross-origin or size issues. It also reports on possible causes of discrepancies such as dynamic content or redirects. The output highlights required vs optional meta tags and offers concrete fix recommendations.
Who benefits: content teams, developers, and SEO practitioners who publish content to social channels. The unique value lies in actionable guidance: not only showing missing tags but also suggesting canonical values, image sizes, and fallback configurations for robust social sharing. Use cases include pre-publishing page checks, ongoing content audits, and onboarding new pages for consistent social previews.
Core features include URL input, automatic tag detection, validation checks, compliance status, and exportable reports. Optional capabilities include per-tag quality scoring, suggested tag templates, and a machine-readable JSON report for integration into CI pipelines or content workflows.