The link-share unfurl is an 80-pixel thumbnail.
What I saw
Raworths' Open Graph image is set to heritage-1.png, an 80×148 pixel PNG uploaded in October 2015. Every time a partner emails a Raworths article into a WhatsApp thread, posts a link on LinkedIn, or shares a Lit Fest page on Teams, the unfurl card renders blank (or with a single faintly stretched pixel). The Twitter Card meta declares summary_large_image but the image is too small to fill it.
What the rebuild does about it
Per-page Open Graph and Twitter card images at 1200×630 generated from the page hero. Sharing the home page on LinkedIn renders the Eton House frontage; sharing a Trusts, Wills & Estates article surfaces the Band 1 Chambers HNW 2026 ranking. The unfurl stops being a missed brand moment and starts being a referral surface.
og:image 80×148 → 1200×630