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Twitter Card validator alternative

X (Twitter) Card Checker

X’s Card Validator stopped showing previews in 2022. Paste a public URL to see the card X will build from your Twitter Card and Open Graph tags, test the image, and find out why a card is missing or shows the wrong layout.

Try: a GitHub repo · a page with no tags 10 checks left today

Preview

An approximation of each app’s layout. Apps change their designs and crop images differently.

What to fix

Refresh a cached preview

These results show your page as it is right now. An app that already saw the link may keep showing its older, cached preview until it fetches the page again:

  • Facebook & Messenger: open Meta’s Sharing Debugger, paste the URL and press Scrape Again.
  • LinkedIn: paste the URL into LinkedIn’s Post Inspector to fetch it again.
  • Telegram: send the URL to @WebpageBot in Telegram to update its stored preview.
  • WhatsApp, Discord, Slack & iMessage: there is no public refresh tool. Share the URL with a harmless query string added, such as ?v=2, so it counts as a new link.
  • X: start a new post with the link to see the current card; existing posts keep the card they were published with.

Tags found

Suggested tags

A complete set based on what we found. Replace any placeholder values, then paste it into the page’s <head>, or into your CMS or SEO plugin’s social settings.


          
        

      


            
    

  






  

    

      

        
How X (Twitter) builds a link preview

        
        
X’s crawler, Twitterbot, fetches the page when a link is posted. It reads twitter: tags first and falls back to Open Graph:

        
    
          
  • twitter:card — the layout: summary_large_image for a wide image card, summary for a small square thumbnail.
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  • twitter:title, twitter:description, twitter:image — or og:title, og:description, og:image when those are absent.
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  • twitter:site — the site’s @handle, used for attribution.
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Twitterbot obeys robots.txt. If robots.txt disallows Twitterbot, or all crawlers, for a page, X cannot build a card for it. In the timeline, X currently shows large cards as the image with the domain over it; the description is not shown.
        

          
See which of these tags your page has, and what X (Twitter) will show.

          Check a URL
        

      


      

        
Why your X (Twitter) preview is missing or wrong

        

                    
robots.txt blocks Twitterbot
X respects robots.txt. A Disallow rule for Twitterbot, or for all user agents, on the page’s path means no card.

                    
No twitter:card tag
Without it X chooses the layout itself and often shows a small card or none. Add twitter:card = summary_large_image.

                    
The image does not meet X’s limits
For summary_large_image the image must be at least 300 × 157 px and under 5 MB; SVG is not supported. The checker tests the file X would download.

                    
X is showing a cached card
X caches card data. If this checker shows the right tags, post the URL with ?v=2 added to get a fresh card.

                    
The page needs a login or JavaScript
Twitterbot reads the raw HTML without logging in or running scripts. Tags must be in the HTML the server sends.

                  

      


      

        
How to refresh X (Twitter)’s cached preview

        
        
The Card Validator page still exists but no longer shows a preview, so it cannot be used to check or refresh a card. The way to see the current card is to start a new post and paste the link; the composer fetches it.

        
To force a fresh fetch after fixing your page, share the URL with a harmless query string such as ?v=2. Posts that were already published keep the card they were created with.
      


      

        
The best share image for X (Twitter)

        
        
For summary_large_image, use a 1200 × 630 px image (X crops wide cards close to 2:1, so keep text centred). The minimum is 300 × 157 px and the limit is 5 MB. JPG, PNG, WEBP and GIF work; only the first frame of a GIF is used, and SVG is not supported. For the small summary card, use a square image of at least 144 × 144 px.


<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@yourhandle">
      


      

        
X (Twitter) preview questions

        

                    

            

              
            

            

              
The page is still there, but since 2022 it no longer shows a preview of the card. This checker shows the card X will build from your tags and tests the image.

            

          

                    

            

              
            

            

              
The usual causes are a missing twitter:card tag, an image under 300 × 157 px or over 5 MB, an SVG image, or robots.txt blocking Twitterbot. The issue list names which one applies.

            

          

                    

            

              
            

            

              
X falls back to Open Graph for the title, description and image, so you mainly need twitter:card to ask for the large layout. Adding twitter:site is a good extra.

            

          

                    

            

              
            

            

              
X’s current design shows large link cards as the image with the domain over it. The title and description are read but not displayed in the timeline.

            

          

                    

            

              
            

            

              
Start a new post with the URL, or add a harmless query string such as ?v=2. Published posts keep the card they were created with.

            

          

                  

      


      

        
Check the preview on other apps

        
Every app reads the same Open Graph tags but shows them differently. The checker above previews all of them at once; these pages explain each app’s own rules.

        

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                    LinkedIn
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                    X (Twitter)
                  

        
Seeing the wrong image on every app? Our guide Link Preview Showing the Wrong Image? How to Clear the Cache on Every Platform covers the fixes in one place.

      


      

        
See your X (Twitter) preview before you share the link

        
Check the tags, test the image, and fix the preview in minutes. Free, no signup.

        Check a URL