Voyez exactement à quoi ressemble votre lien sur WhatsApp, Discord, Slack, Telegram, iMessage et Twitter avant de le partager. Obtenez le code de correction si quelque chose ne fonctionne pas.
' Some sites block bots. If fetch fails, use the Manual Entry tab.
When someone pastes your link into WhatsApp, the app fetches your page's Open Graph (OG) meta tags to build the preview card. If your og:image tag is missing, too small, or blocked by your server, WhatsApp shows a plain text link " or nothing at all.
The most common fix: add these three lines inside your <head> tag:
<meta property="og:title" content="Your Page Title" />
<meta property="og:description" content="One sentence description." />
<meta property="og:image" content="https://yoursite.com/og-image.jpg" />
Different platforms have different minimum and recommended image sizes. Using the wrong size causes cropping, blurry previews, or cards that simply don't appear.
| Platform | Minimum Size | Recommended | Aspect Ratio |
|---|---|---|---|
| 200-200 px | 1200-630 px | 1.91:1 | |
| Discord | Any | 1280-640 px | 2:1 |
| Slack | 200-200 px | 1200-630 px | 1.91:1 |
| Telegram | Any | 1200-630 px | 1.91:1 |
| iMessage | 300-200 px | 1200-630 px | 1.91:1 |
| Twitter / X | 144-144 px | 1200-628 px | 1.91:1 |
Dark social refers to web traffic from private messaging channels like WhatsApp, Telegram, Slack, and iMessage. Unlike Twitter or Facebook shares, dark social traffic appears as direct in your analytics " even though someone explicitly shared your link.
Studies estimate that 70"80% of all online sharing happens on dark social channels. Yet most site owners only optimize their OG tags for Facebook and Twitter, leaving a massive gap. A well-optimized link preview on WhatsApp can drive enormous referral traffic that is completely invisible to traditional social analytics.
WhatsApp is the most popular dark social channel with over 2 billion daily active users. Here's a step-by-step checklist to ensure your links look great:
og:title, og:description, og:image, and og:url.Content-Type header.?v=2), or use a Discord bot with the "Reload Embed" feature. Note that the cache can last up to 30 minutes.<meta property="og:image:type" content="image/jpeg" /> and serve a 1200-1200px variant.WhatsApp/2.21.12.21 A on Android. If your bot protection is blocking WhatsApp previews, whitelist User-Agents that contain "WhatsApp". Never block all bots indiscriminately " social crawlers are essential for shares.The OG (Open Graph) image is the preview image shown when your link is shared on Facebook, Twitter, LinkedIn, WhatsApp, and Slack.
1200×630 pixels is the recommended size. It works across all platforms without cropping.
Add , , and tags in your HTML
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