Quick answer
Use 1200 x 630 pixels at about 1.91:1 as a practical Open Graph image for a website link preview. LinkedIn gives 1200 x 627 as its URL-post display guideline. Set the image in the page's metadata, use an absolute public URL, and test the actual link preview.
Source check: August 28, 2026. Platform apps, APIs, account types, and third-party publishers can change on different schedules. The final operational check is the preview and public result in the exact path you use.
At a glance
| Surface or choice | Size or limit | Ratio or source | What it means |
|---|---|---|---|
| Common Open Graph canvas | 1200 x 630 | 1.91:1 | Broad social-card working size |
| LinkedIn URL image | 1200 x 627 | 1.91:1 | LinkedIn display guideline |
| Minimum practical width | At least 1200 preferred | — | Helps avoid a small thumbnail |
| Image URL | Absolute HTTPS URL | — | Must be publicly reachable |
What this page owns
A link preview is controlled by the linked page, not the social post image picker. Platforms can cache old metadata, so a corrected page can still show an older card until the platform refreshes it.
That ownership boundary matters. Boomp uses one clear page for each search job instead of publishing near-duplicate pages that give different answers to the same question.
A dependable production method
- Set an accurate page title and description.
- Use a public absolute image URL.
- Keep key text away from edges.
- Test the URL in the destination's current preview flow.
- Allow for cache delay after a change.
The last check matters most. A design file, successful export, scheduler acceptance, or API response does not prove that the customer-facing artifact is correct.
Size is only one acceptance test
A technically valid file can still fail the business. Check these questions with the final media and caption together:
- Is every name, date, price, claim, location, and link current?
- Does the crop preserve the subject and the useful words?
- Are captions, contrast, and text alternatives sufficient for the content?
- Does the business have permission to use the people, customer material, music, footage, and marks shown?
- Does the call to action match the destination and what happens next?
- Did a responsible person approve this exact version?
For the full release gate, use the social media content quality checklist.
Where Boomp fits
Boomp fits when the recurring problem is larger than one pixel count. The free first look starts with a public website and returns ten finished posts, with images, a carousel and a short video, before asking for an account or a card. They are the software's reading of the public site and do not prove that Boomp knows the owner's voice. Publishing and the recurring month belong to the paid plans. Finished media and posts belong to paid work, with the customer's approval settings controlling what represents the business.
See ten finished posts made from your website, free.
Related guides
- Facebook Image Sizes 2026: Posts, Covers, Profiles and Reels
- LinkedIn Image Sizes 2026: Posts, Pages and Article Covers
- Social Media Aspect Ratios 2026: 1:1, 4:5, 9:16 and 16:9
- Social Media Content Quality Checklist: 30 Checks Before Publishing
