A small tool that fetches a URL at the edge, reads the Open Graph and Twitter tags, and shows how the unfurl will look on X, LinkedIn, Slack, Discord, and iMessage — plus a short checklist of what to fix. Free to use, with a $19 Pro unlock. No account. Page HTML is not stored.
About 78 unique client IPs and 4,127 Worker requests Sep 28–Oct 4 (sampled from Worker logs — bots and tests included; not exact visits). Five more SEO guides shipped (library about a dozen); since Oct 4 core checks are Pro-only at $19 one-time. Four Pro licenses in KV, unchanged, and that count may include early test purchases.
124 unique visitor IPs and 5,516 requests in the last 7 days (a proxy, not exact unique visits), with 4 Pro licenses issued including at least one free test license. The Product Hunt launch on Sep 22 got a quiet reception. Five new SEO guides are live on cardscope.dev, and one directory listing is pending review.
About 498 unique visits so far (sum of Cloudflare daily uniques Sep 19–21 — not de-duplicated across days; zone only live since Sep 19). Three Pro licenses in KV, two Stripe checkouts (including a founder $0 test). Product Hunt prelaunch is up for Tue Sep 22; SEO guide is live; soft-launch directories are mixed.
Shipped CardScope on Cloudflare. Fetch at the edge, parse the tags in memory, then forget the page. That privacy note is the product, not a footer.
Started as a scratch tool because every client reads a different set of meta tags. Slack wants Open Graph; Discord leans on twitter:card; iMessage falls apart without an image. One paste, five shells.
Paste a URL, see the unfurl, fix the tags. No accounts, no stored HTML, no extra product around it.