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Table of Contents
How to Add a Twitter Card to Your Website
How to Validate a Twitter Card
Use the Twitter Card Validator Tool
Common Issues & Fixes
Alternative: Use the X Post Inspector
Home Software Tutorial Mobile Application What is a Twitter card and how to validate it

What is a Twitter card and how to validate it

Aug 03, 2025 am 09:17 AM

To add a Twitter card, add a specific meta tag in the

part of the web page HTML and verify it using the X Post Inspector tool. 1. Add the following meta tag: specify the card type (such as summary_large_image), site account, title, description, image URL and author account. 2. Ensure that the image size meets the requirements (recommended 1200x600px), that all URLs are absolute paths, and that the page is publicly accessible. 3. Enter the URL using X Post Inspector, check the preview effect, and trigger a re-crawl to refresh the cache. 4. Follow tooltips to fix errors, such as missing tags, too small images, or crawling issues. As long as the tag is set correctly and verified, the Twitter card will be displayed normally.

What is a Twitter card and how to validate it

A Twitter card is a way to attach rich media and metadata to links shared on Twitter, making them more engaging and informative when posted. When you share a URL on Twitter, the platform reads specific meta tags in the page's HTML to generate a preview that includes things like a title, description, image, and even video or app details—this preview is the Twitter card.

What is a Twitter card and how to validate it

There are several types of Twitter cards, including:

  • Summary Card : Basic card with title, description, and a thumbnail.
  • Summary Card with Large Image : Same as above but with a larger image.
  • App Card : Promotes a mobile app with direct download links.
  • Player Card : Embeds video or audio content that plays directly in the tweet.

How to Add a Twitter Card to Your Website

To enable a Twitter card, you need to add Twitter-specific meta tags in the section of your webpage. Here's an example of a Summary Card with Large Image:

What is a Twitter card and how to validate it
 <meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@your_twitter_handle">
<meta name="twitter:title" content="Page Title">
<meta name="twitter:description" content="A short description of the page.">
<meta name="twitter:image" content="https://example.com/image.jpg">
<meta name="twitter:creator" content="@author_handle">

Make sure:

  • The image meets size requirements (ideally 1200x600px for large image cards).
  • All URLs are absolute (not relative).
  • The twitter:site tag uses the correct Twitter handle for the site.

How to Validate a Twitter Card

After adding the tags, you need to validate the card to ensure Twitter can read and render it properly.

What is a Twitter card and how to validate it

Use the Twitter Card Validator Tool

  1. Go to the Twitter Card Validator (Note: This tool is now part of the X Developer Platform).
  2. Enter the URL of the page you want to test.
  3. Click Preview .

The tool will:

  • Fetch the page.
  • Parse the meta tags.
  • Show a visual preview of how the card will appear in a tweet.
  • Highlight any errors (eg, missing tags, image too small, crawl issues).

?? Note : If you recently updated your site, Twitter may cache the old version. Use the validator to force a refresh.


Common Issues & Fixes

  • Card not appearing?

    • Double-check meta tag syntax.
    • Ensure the page is publicly accessible (no login walls or robots.txt blocking).
    • Wait a few minutes after deploying changes.
  • Image not loading?

    • Confirm the image URL is absolute and publicly reachable.
    • Check file size (under 5MB) and dimensions.
  • Changes not reflecting?

    • Use the validator tool to re-scrape the URL. Twitter caches card data, so manual refresh is needed.

Alternative: Use the X Post Inspector

Twitter has largely migrated to the X Post Inspector tool (formerly Card Validator). You can:

  • Enter a URL.
  • Inspect how X (formerly Twitter) sees your page.
  • Trigger a re-crawl.
  • View detected metadata and any warnings.

This is now the recommended method for debugging.


Basically, just add the right meta tags, make sure your content is public, and use the X Post Inspector to test and refresh. It's not complicated, but small mistakes can break the card—so always validate.

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