Sample consumer site

The Compounding Ledger

A fictional blog used to verify Instacalc's embeds work in the wild.

This is a dummy third-party site. It exists so that Instacalc's external features — embeds, share links, saved calcs, themed widgets — are exercised exactly the way a real blogger's site would exercise them. The status watchdog probes these pages every five minutes; if an embed stops rendering or a link 404s, an alert fires before a real author ever notices.

Each post deliberately uses a different external integration path:

• What does a 0.5% rate change actually cost you?

  Inline <instacalc> embed · light + dark themes · formula share link

  An inline calc embed (typed-in calc text) plus a themed variant and a one-click "open in Instacalc" share link.

• A freelance rate calculator you can actually edit

  Saved-calc src= embed · iframe embed · Firebase-backed

  Loads a pinned saved calc by ID (the live Firebase path) and the canonical /embed/<id> iframe side by side.

• The real cost of your daily coffee

  Inline embed · bare formula links · OG image

  Inline embed plus several plain share/formula links and a social-preview image — the lightweight integration path.

• Five ways to drop a calculator into a page

  Iframe embeds · saved-calc IDs · URL-defined formulas · legacy suffix form

  The robust iframe path: saved calcs by ID, named gallery calcs, formulas defined entirely in the URL, and the legacy /<id>/embed redirect. Every one computes live on instacalc.com.

Everything here points at instacalc.com over the public, documented embed API (ic.js, /embed/<id>, formula URLs). Nothing is special-cased. If it works here, it works on a real customer's site.