A practical metadata checklist to fix broken link previews before launch

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When developers share a newly built website on social platforms, missing or misconfigured metadata often causes broken previews, cropped images, and missing headlines. Metadata — including Open Graph tags, favicons, and meta descriptions — controls how a site appears in browser tabs, search results, and social link previews, yet it is commonly overlooked until something visibly breaks. A developer auditing her own portfolio site found that using a 512×512 profile photo as both the favicon and OG image led to unreadable icons and awkward cropping, since most platforms expect a 1200×630 image with text overlaid. Fixes included replacing the favicon with a simplified monogram, regenerating the OG image at the correct aspect ratio, and using platform debuggers to force a cache refresh, since social networks aggressively cache OG data. Running this kind of metadata audit — covering favicons, Open Graph tags, Twitter cards, and page titles — on every public-facing page is recommended either before launch or whenever a site shares poorly.

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