Générateur de balises méta
Rédigez le titre de votre page, sa description et ajoutez une image, vérifiez la longueur de chacun, prévisualisez le résultat sur Google et les réseaux sociaux, puis copiez les balises méta HTML.
Comment rédiger de bonnes balises méta
Remplissez les champs ci-dessus et le générateur rédigera le code HTML pour vous. Collez-le dans l'en-tête (<head>) de votre page, ou copiez les valeurs dans les paramètres SEO de votre CMS ou outil de création de site.
Rédigez un titre de 50 à 60 caractères
Placez le mot-clé principal vers le début et le nom de la marque à la fin. Google tronque les titres à environ 60 caractères.
LinkedIn says to allow 48 hours for a preview to update on its own. Paste the URL into Post Inspector and click Inspect to fetch it again. New posts get the update; posts you already shared keep the old preview. Still broken? See the LinkedIn guide.
Facebook and Meta
Facebook re-scrapes links every 30 days on its own. To update now, open the Sharing Debugger, paste the URL and click Scrape Again. You need a Facebook login. If you changed the image, give it a new file name so the old one isn’t reused. Still broken? See the Facebook guide.
X (Twitter)
X has no refresh tool anymore. The Card Validator stopped showing previews in 2022 and now sends you to a login page, and X doesn’t document its cache time. Share the link with a query string like ?v=2 and X fetches it as a new URL. Still broken? See the X card guide.
Slack
Slack caches each preview for about 30 minutes across all workspaces, according to Slack’s robots page. There’s no refresh button: wait half an hour or post the link with ?v=2. Messages already sent keep their preview. Still broken? See the Slack guide.
Discord
Discord caches embeds for about 30 minutes. Post the link with a query string such as ?v=2 to get a fresh embed right away. Older messages keep the embed they had. Still broken? See the Discord guide.
WhatsApp has no official refresh tool or documented cache time. Send the link with ?v=2 added to get a new preview. Previews in messages you already sent don’t change. Still broken? See the WhatsApp guide.
Telegram
Telegram has an official bot for this. Open @WebpageBot, send it your URL and it updates the preview. You can send several links in one message.
iMessage
Apple Messages builds previews from your Open Graph tags, as described in Apple’s guide, and has no refresh tool. Send the link with a query string to get a new preview. Still broken? See the iMessage guide.
Google updates your title, description and favicon when it recrawls the page. In Search Console, run URL Inspection and click Request indexing. A query string doesn’t help here, because Google shows your canonical URL.
FAQ sur le générateur de balises meta
Des réponses rapides sur les balises meta, Open Graph et où placer le code généré.
Qu'est-ce qu'un générateur de balises meta ?
Un générateur de balises meta transforme le titre, la description, l'URL et l'image d'une page en balises HTML lisibles par les moteurs de recherche et les réseaux sociaux : la balise title, la meta description, le lien canonique, les balises Open Graph et les balises Twitter Card.
Does adding ?v=2 to a URL hurt SEO?
No, as long as the page has a canonical tag pointing to the clean URL. Search engines then treat both as the same page. Use the query string only for sharing.
Will refreshing update posts I already shared?
Usually not. LinkedIn, Slack, Discord and WhatsApp keep the preview a post had when it was sent. Refreshing changes what new shares show.
Why does the old image still show after a refresh?
Many apps cache images separately, by image URL. Upload the new image under a new file name, update og:image, then refresh again.
Is this tool free?
Yes, with no signup. It reads your page’s tags and links you to each platform’s own refresh tool. The refresh itself happens on that platform.