Add a 1200×630 Open Graph image — Bolt

Missing or undersized og:image is why LinkedIn and Slack previews look empty. 1200×630 PNG/JPEG is the spec every social platform expects.

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Fixing this in Bolt

StackBlitz in-browser AI app builder with WebContainers

Bolt projects run inside a browser container — file paths are real, but the deploy target varies. Paste the prompt below into your Bolt chat and the fix rolls out across the project in one pass.

Using a different tool? Pick your stack:

Lovable Cursor Bolt v0 Replit Windsurf Claude Code Base44

The prompt for Bolt

Copy and paste this into your Bolt chat exactly as-is.

In Bolt, please update my project with these exact changes:

Add an Open Graph image

1. Create a 1200x630px image for social sharing.
2. Add <meta property="og:image" content="https://yoursite.com/og-image.png"> to <head>.
3. Host the image on your own domain, not an external CDN.

Why this matters

Social and chat previews are often the first impression. A well-designed OG image lifts link CTR by 30-80% on social. No image = no preview card = scrolled past.

Dynamic OG images (Next.js ImageResponse, Vercel OG) can generate per-page cards automatically from page data — high impact, low maintenance.

How to use this prompt in Bolt

1. Open your Bolt project.
2. Copy the prompt above with the copy button.
3. Paste into the Bolt chat and send.
4. Review the diff, accept the changes, redeploy.
5. Verify the fix using the checklist below.

Common mistakes to avoid

error_outlineUsing a square logo as og:image — LinkedIn and Slack crop it.
error_outlineServing the image from a fragile URL (e.g., behind auth).
error_outlineForgetting the absolute URL — relative URLs break many scrapers.
error_outlineText in OG image too small to read at preview size.

How to verify the fix worked

check_circlehttps://www.opengraph.xyz/ shows the image.
check_circlePaste URL into LinkedIn/Slack/WhatsApp — preview renders.
check_circleTwitter Card Validator passes with summary_large_image.

Frequently asked questions

Dynamic or static OG images?expand_more

Static is simple and fast. Dynamic (generated per page) is better for blogs/products. Next.js ImageResponse is the standard.

JPEG or PNG?expand_more

PNG for crisp text, JPEG for photos. Keep under 1MB or some scrapers skip it.

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