Mira cómo se ve tu enlace al compartirlo en Facebook, X, LinkedIn o WhatsApp.
¿Imagen incorrecta o antigua al compartir?
Lo hiciste todo bien — og:title, og:description y og:image son correctos — y aun así Facebook o WhatsApp muestra una imagen antigua o incorrecta? Casi siempre es la caché: las plataformas guardan la vista previa la primera vez que se comparte y no la vuelven a leer automáticamente. Si luego cambias la imagen o el título, todos siguen viendo la versión antigua. Solución: abre el depurador oficial de la plataforma, introduce tu URL y deja que vuelva a leer la vista previa (el botón suele llamarse Scrape Again). Después la caché está fresca. Otra opción: añade un pequeño sufijo a la URL (p. ej. ?v=2) — así la plataforma la trata como una página nueva con vista previa fresca.
Depuradores oficiales y vaciar la caché
Usa estas herramientas oficiales para comprobar la vista previa directamente en la plataforma y forzar una relectura:
X (Twitter): el antiguo Card Validator se cerró. X lee las mismas etiquetas og:/twitter: — vuelve a compartir el enlace para actualizar la vista previa.
WhatsApp: no tiene depurador propio y usa en parte la caché de Facebook — por eso el depurador de Facebook de arriba suele ayudar. Si no, cambia un poco la URL (?v=2).
When you share a link on Facebook, WhatsApp, LinkedIn or X, a preview card appears automatically: an image, a title and a short description. Platforms pull this card from the Open Graph tags in your page source (og:title, og:description, og:image) and from Twitter Cards.
With the social media preview you simply enter your link and instantly see how it looks on the most important platforms — with the exact image, title and text your visitors will see. No nasty surprise after you have already posted.
If something is off — the image is missing, the title is cut off or an old preview image is stuck — you spot it here in seconds and fix it before your post goes live.
The preview card is your link's first impression — often the image alone decides whether someone clicks. A broken preview (no image, wrong title, old cached image) costs you reach and clicks. A quick check is faster than deleting a botched post and redoing it.
Each platform renders the preview a little differently — same tags, different layout. The preview shows you the key ones at once:
Large image card (1200×630) with title and description. Pulls Open Graph; fix issues with the Sharing Debugger.
Summary card with a large image (twitter:card = summary_large_image) or the small thumbnail variant.
Image card with title and domain. The cache lasts long — refresh via the Post Inspector.
Small bubble with thumbnail, title and link. Needs a publicly reachable og:image.
Also use Open Graph; portrait images often work better here.
Show a compact link preview from the same og tags.
Paste the link
Drop the URL of your page, shop or post into the field. The http(s):// is optional.
Load the preview
The tool fetches the page server-side and reads the Open Graph and Twitter tags.
Compare the cards
You see the preview for Facebook, X, LinkedIn and WhatsApp side by side — image, title and text.
Fix if needed
If something is missing, add the og tags on your page and reload the preview until it is right.
Open Graph is the standard that controls how your link looks on social networks. These tags belong in the <head> of your page:
og:titleThe title of the preview card. Short and punchy — about 60 characters, or it gets cut off.
og:descriptionThe description below the title. Around 110–160 characters works best.
og:imageThe preview image. 1200×630 pixels, absolute URL, ideally under 5 MB. The single most important element for clicks.
og:urlThe canonical address of the page — prevents duplicate previews when tracking parameters are present.
og:typeThe content type, usually website or article. Helps platforms with the display.
twitter:cardFor X: summary_large_image gives the big image card. Otherwise X falls back to Open Graph.
The most common reasons a link preview is wrong — and how to solve them:
Whenever a link is meant to grab attention:
Before every campaign
Before you put money into ads or a newsletter — make sure the preview is convincing.
After page changes
New cover image or text? Check that the preview picked up the change.
New landing page
Give a freshly built page a once-over before the first share — image, title, description.
Affiliate & product links
See which image and title a third-party link lands with in your story.
Troubleshooting
No thumbnail on WhatsApp? Find the cause here in seconds.
Check competitors
How do others present their links? A look at their preview cards inspires.
With promolinks you shorten your links and control the title, description and preview image per link — so every shared link looks exactly the way you want, plus click stats and a QR code.
Open the URL shortenerUsually the og:image is missing or the image URL is not publicly reachable. Add an og:image with an absolute https URL (1200×630) and reload the preview.
1200×630 pixels (1.91:1 ratio) is the standard for Facebook, LinkedIn and the large X card. Keep the image under about 5 MB.
Platforms cache the preview. Use the Facebook Sharing Debugger or LinkedIn Post Inspector to re-scrape the page and refresh the cache.
Open Graph is a meta-tag standard (og:title, og:description, og:image and more) that defines how your page is presented when shared on social networks.
Twitter Cards (twitter:card) control the preview on X. summary_large_image gives the large image card; without the tags, X falls back to Open Graph.
Each platform renders the same tags in its own layout. WhatsApp shows a small bubble with a thumbnail, Facebook a large image card — but the data comes from the same og tags.
Not strictly — X falls back to Open Graph. For full control (the large image card) twitter:card = summary_large_image is worth adding.
No. The page is fetched server-side and the meta tags are read — without executing any active content of the target page.
Yes. Without signing up you check 1x per day for free. With a free promolinks account usage is unlimited — plus your own short links with a customizable preview.
On your own page via the og tags — yes. With promolinks you set title, description and image per short link, without touching the source code.
With a free promolinks account you shorten your links, control the preview per link and see what works via click stats — plus a matching QR code.
Create free account