SocialImageKitBot

SocialImageKit uses a small crawler when someone runs theLink Preview Checker. The request is made so we can read public Open Graph tags the way Facebook or LinkedIn would — from the first HTML response, without logging in.

User-Agent

SocialImageKitBot/1.0 (+https://socialimagekit.com/bot)

If you allow or block bots by user agent, this is the string to match. We send no cookies and we do not forward the visitor’s IP or headers to your origin.

What it fetches

• Only http and https URLs on ports 80 or 443 that a visitor typed into the checker.
• At most 1 MB of HTML. Other content types are rejected.
• A HEAD request for the og:image URL, to read Content-Type and Content-Length.
• Private, loopback, link-local and metadata addresses are blocked.

The bot is not a search indexer. It does not crawl links. It does not store the URL or the HTML as a browsing history. Successful checks may be cached at the edge for five minutes.

Rate limits

Each visitor network can run a limited number of checks per minute. If you see a 429 from/api/preview, wait and try again.

Contact

If this user agent is hitting your servers in a way you did not expect, emailhello@socialimagekit.comor use the contact page. Include the time (UTC) and the path on your site. Do not send logs that contain other people’s full URLs if you can avoid it.

Privacy details for the checker are in thePrivacy Policy.