For X / Twitter Cards
Preview how your URL renders as a Twitter Card on X.
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X looks for twitter:* tags first, then falls back to Open Graph. Most sites only need OG — twitter:* is for cases where you want a different preview on X.
summary_large_image is the card type that gets clicks. Default summary cards have small icons and underperform.
The fallback chain is worth knowing precisely: for each field, X checks the twitter:* tag first, then the og:* equivalent (twitter:title falls back to og:title, twitter:image to og:image, and so on). The one tag with no OG equivalent is twitter:card itself — the card type declaration. Without it, X may still render a card from OG data, but declaring twitter:card=summary_large_image explicitly is the reliable way to get the large-image layout.
X's card rendering has changed repeatedly in recent years — most notably, link cards on X have gone through periods of showing the image without the headline text overlaid, which shifts even more weight onto the image itself. Design og:image/twitter:image assets that communicate the story with zero caption support: legible title text baked into the image is the pragmatic response to a platform that keeps redesigning around your metadata (verify current rendering with a test post — it changes).
Like every scraper, Twitterbot reads server-rendered HTML only. SPAs that inject meta tags client-side produce blank cards; server-side rendering or prerendering fixes it. Twitterbot also respects robots.txt — a disallow rule that catches it is a surprisingly common cause of missing cards on otherwise well-tagged sites.
Card issues on X are harder to debug than they used to be: the official Card Validator's preview functionality was retired, so third-party tag checkers like this one plus a real test post from a private or low-stakes account are the practical validation workflow as of 2026.
Caching on X is real but shorter-lived than Facebook's or LinkedIn's. If you've fixed tags and the old card persists, give it time or test with a URL variant (adding a harmless query parameter forces a fresh scrape since the cache is keyed by URL) — a trick that works on most platforms when you need to see the corrected card immediately.
Verify large image cards render before tweeting your launch — a text-only launch tweet in the feed is a visibility tax you don't have to pay.
Confirm the card image and headline match the article on X, and that the image still tells the story if X renders it without overlay text.
Catch missing twitter:card meta before it costs you impressions — this tool shows exactly which tags the page serves right now.
Verify client-rendered sites serve meta tags to crawlers — the most common cause of blank X cards on modern frontend stacks.
Check that your twitter:* overrides (if any) and og:* base tags tell the same story, so shares look intentional on X, LinkedIn, and Slack alike.
Pre-configured variants tuned to specific platforms and use cases.
For LinkedIn shares
See how your URL looks when shared on LinkedIn — before you post.
Open variantFor Slack unfurls
Check how your URL unfurls inside Slack messages and channels.
Open variantFor Facebook shares
Inspect how your URL will render in a Facebook post or share.
Open variantFor Discord embeds
See how Discord embeds your URL inside a channel or DM.
Open variantFor WhatsApp chats
See the title, description, and thumbnail WhatsApp shows when a link is pasted into a chat.
Open variantFor Telegram messages
See how Telegram renders your URL in chats, groups, and channels.
Open variantFor iMessage rich links
See the rich link card Apple Messages builds from your og:title and og:image.
Open variant