Preview and generate Twitter/X Card meta tags. Test summary and summary_large_image card types before publishing.
My Amazing Article
A short description of the article that will appear in the card preview on Twitter/X.
example.com
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="My Amazing Article">
<meta name="twitter:description" content="A short description of the article that will appear in the card preview on Twitter/X.">
<meta name="twitter:site" content="@mysite">
<meta name="twitter:creator" content="@author">Twitter supports four card types: summary (small square thumbnail with title and description), summary_large_image (large banner image above title/description), app (for mobile app promotion), and player(for embedded video/audio). For most websites, summary_large_image drives the highest engagement — tweets with large images get 150% more retweets than those with summary cards.
For summary cards: minimum 144×144px, maximum 4096×4096px, displayed as a square thumbnail (1:1 ratio recommended). For summary_large_image: minimum 300×157px, recommended 1200×628px, displayed at a 2:1 aspect ratio. Images must be under 5 MB. Twitter supports JPG, PNG, WEBP, and GIF (first frame only). SVG is not supported.
Twitter checks for twitter:card tags first. If twitter:title is missing, it falls back to og:title. If twitter:description is missing, it uses og:description. If twitter:image is missing, it uses og:image. The only required Twitter-specific tag is twitter:card (which has no OG equivalent). This means if you already have complete OG tags, you only need to add one line: <meta name="twitter:card" content="summary_large_image">.
The twitter:sitetag identifies the website's Twitter account (e.g., @nytimes), while twitter:creatoridentifies the content author (e.g., @journalist_name). When someone shares your article, Twitter may show “via @site” or give credit to the creator. Both are optional but recommended for content attribution and brand visibility.
Twitter no longer requires card validation/approval (removed in 2021). As long as your meta tags are correctly formatted, cards will render automatically when your URL is shared. However, you should still test with the Card Validator to verify your tags are rendering correctly.
Twitter caches card data for approximately 7 days. After updating your meta tags, use the Card Validator to force a refresh. Previously shared tweets will not update retroactively — only new shares will show the updated card. For time-sensitive corrections, this means acting quickly.
Common causes: image URL is relative (must be absolute), image file is too large (over 5 MB), image dimensions are too small (under 144×144 for summary), server blocks Twitter's crawler (user-agent: Twitterbot), or the image URL returns a non-200 HTTP status. Test with the Card Validator to diagnose the specific issue.