The OG image (Open Graph image) is the picture that appears when someone shares your page on social media, WhatsApp or Slack. It's often the first — and sometimes the only — thing people see before deciding whether to click through, so a weak or missing image costs you reach directly.
Why it's more than just a picture
A shared link without its own image quickly looks bare and untrustworthy, while a polished preview with an image, title and description immediately comes across as professional. For offers, blog articles or important landing pages, a strong OG image makes a real difference to how many people click through from social media.
What to watch for
- Use the standard 1200 × 630 pixel format, so the image is cropped correctly and stays sharp on every platform.
- Keep important text large and legible — even when the preview renders small in a chat window.
- Include your logo or brand identity, so a shared link is instantly recognisable as coming from your brand.
- Avoid small text or busy backgrounds; simple, high-contrast images work best.
- Give important pages — the homepage, core products, blog articles — their own specific image.
Defaults as a safety net
Not every page needs a unique image. For pages without their own OG image, set a well-chosen default so shared links always look polished regardless. You manage and upload images under Media.
A concrete example
Share a page without its own image on WhatsApp, and the recipient sees only a bare link with some text — not very inviting to open. Share the same page with a polished OG image, and a recognisable preview appears with an image, title and description that reads like a mini-ad. For content you expect people to share — blog articles, offers, events — that difference is often what decides whether people actually click through to your site.
Part of the bigger picture
A strong OG image works best combined with a compelling title and a persuasive meta description — together they determine how professional and appealing a shared link looks. How to set an image per page is covered under SEO.