1. Basic OG Tag Structure
<meta property="og:title" content="..." /> <meta property="og:description" content="..." /> <meta property="og:image" content="https://example.com/og.png" /> <meta property="og:image:width" content="1200" /> <meta property="og:image:height" content="630" />
This tool auto-generates the snippet above. Insert it into the <head> of your wedding invitation HTML.
2. Recommended Image Sizes
- Standard OG: 1200 × 630 (Facebook, X, KakaoTalk image card).
- KakaoTalk Card: 800 × 400 or 800 × 600 aspect ratio.
- Square: 1080 × 1080 (for Instagram sharing).
3. When KakaoTalk Thumbnail Won't Show
- Open the Kakao Debugger → kakao.com/tool/debugger/sharing.
- Enter the invitation URL and click "Re-scrape". This forces KakaoTalk to refresh the cached thumbnail.
- Image must be under 5MB and served over HTTPS.
- If the image URL is a relative path, change it to an absolute URL.
4. Facebook Debugger
facebook.com/tools/debug. Same as KakaoTalk — clicking "Re-scrape" clears the thumbnail cache.
5. X (Twitter) Card
twitter:card Set twitter:card to summary_large_image to display the image in large format.
6. KakaoTalk Shows Text Only
- Slow server response — KakaoTalk crawler has a short timeout. Use a CDN.
- Image URL blocked by robots.txt — update it to allow crawling.
- Wedding platform (HappyMillie, Oply, etc.) overrides OG — change the cover image in the platform settings.