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SEO and auditingChecked through WebDiag API

Open Graph and Twitter/X Card Preview

Enter a URL to check social and messenger preview cards: Open Graph, Twitter/X Card, fallback data, image, and missing fields.

  • Open Graph
  • Twitter/X Card
  • Rich preview
Online tool

Try the tool

Enter a URL: WebDiag will run a safe network check and show the result.

Network check through backend

For HTTP/SEO tools, the URL is sent to the WebDiag API, where SSRF protection, DNS/IP policy, and redirect limits are applied.

Reviewed: 2026-07-17
01

How to use it

  1. 1

    Paste the page URL.

  2. 2

    Run the check and compare Open Graph and Twitter/X preview.

  3. 3

    Fix missing title, description, image, or card type.

02

What the tool can do

  • Extracts og:title, og:description, og:image, og:url, og:type, and twitter:* metadata.
  • Resolves relative images against the final URL after redirects.
  • Shows fallback from normal title/description when social metadata is partially missing.
03

Common use cases

  • Check a page preview before sharing in Telegram, VK, X, or messengers.
  • Find missing og:image after template or CDN migration.
  • Review rich preview with marketing before a campaign launch.
04

How it works inside

Twitter/X preview can use Open Graph fallback when explicit twitter:* fields are missing.

This is one complete social preview tool, not two weak duplicated OG and Twitter tools.

05

Questions and answers

Why is Twitter/X not a separate tool?

Because the user scenario is one: check the page rich preview. Twitter/X belongs inside a complete social preview tool.

Does it check og:image dimensions?

Not yet. That needs a separate image fetch/asset validation layer with limits to preserve safety and speed.