SEO Tools

Twitter Card Checker

Inspect Twitter Card meta tags on any public page. Preview how shared links will appear on Twitter/X, with the correct card type (summary, summary_large_image, app, or player), title, description, and image.

Free SEO analysis No sign-up required Instant results

Validate your Twitter / X card tags

Validates all twitter:* meta tags (9+ properties), detects OG → Twitter fallback chain, checks image dimensions, and renders a live card preview.

Never stored twitter:card · title · image OG fallback chain Card preview
Paste <head> HTML Paste the <head> section containing your twitter:* meta tags
Input Text Output Report Browser-only No upload by default

Features

  • Extracts twitter:card, twitter:title, twitter:description, twitter:image
  • Summary and summary_large_image card previews
  • Flags missing required tags
  • Checks twitter:image:alt for accessibility
  • Falls back to og: tags as Twitter does
  • Fetches public URLs only

How to use it

  1. Enter a public URL or paste HTML.
  2. Twitter Card tags are extracted.
  3. See the card preview for the detected card type.
  4. Review missing or incomplete tag warnings.

Use cases

  • Verifying Twitter Card appearance before publishing
  • Debugging why a Twitter share shows no image
  • Auditing twitter:image alt text for accessibility
  • Checking Twitter Card fallback to og: tags

Limitations

  • JavaScript-rendered content is not evaluated. Only the static HTML response is analysed.
  • Paste the raw HTML source. Relative paths may not resolve correctly without the original base URL.
  • Falls back to og:title and og:description if Twitter-specific tags are absent.
See also

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Extract and analyse the H1–H6 heading structure of a page or HTML snippet. Check for missing H1, duplicate H1s, and heading hierarchy issues. Browser-only.

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Questions & answers

Frequently asked

What is the difference between summary and summary_large_image?

summary shows a small thumbnail beside the text. summary_large_image shows a large image above the title and description. The most common card type for blog posts and articles.

Does Twitter Card Checker upload my data?

Your file or text is processed in your browser and is not uploaded.

What does Twitter Card Checker check?

It produces a Twitter card tag report. Falls back to og:title and og:description if Twitter-specific tags are absent.

Does this replace Google Search Console?

No. This tool reads static HTML and provides a quick informational check. For authoritative indexing data and crawl reports, use Google Search Console.