When you share a link on social media, the preview image can make all the difference. Mosaic makes it easy to generate these images automatically, but how often should you update them? Here are a few guidelines to keep in mind.

Update after design changes

A major website redesign or even small tweaks to your layout can affect how your pages look when captured. Mosaic refreshes cached images automatically after 30 days, so there is no dashboard action to run.

Refresh for product launches

Launching a new product or feature may happen before the cache expires. Social platforms also keep their own caches, so use that platform's card debugger or re-scrape tool when an immediate preview update matters.

Consider seasonal content

For seasonal or time-sensitive pages, keep the page URL stable and allow the automatic refresh to replace the shared screenshot. Use a new canonical page URL only when the content truly represents a new page.

How Mosaic can help

Mosaic stores one screenshot per canonical page URL, shares it across users, and refreshes it after 30 days. If generation capacity is temporarily busy, the older image remains available instead of breaking the social preview.

Keeping your OG images up to date ensures that your content always looks its best when shared without requiring site owners to manage image files or signing keys.