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Embeddable widget

Add a fee calculator to your reseller guide

Give readers an on-page way to check marketplace fees before they leave your article. The widget runs current 2026 FlipCalc fee math inside an isolated, lazy-loaded iframe and includes a visible attribution link back to sellerfeecalc.com.

Keep readers on-page

Visitors can test marketplace fees without leaving your guide.

Answer fee questions

Useful for reseller tutorials, marketplace comparisons, and sourcing posts.

Current fee math

Widget routes use the same production engine as the public FlipCalc calculators.

Copy-paste HTML

Generic iframe embed

Paste this into any HTML editor. Change `ebay` to the platform that matches the article, or use the platform preview links below.

Viewport-loaded script embed

Use this version when the calculator appears lower on the page. The script mounts the iframe only when the widget scrolls near the viewport.

Platforms

Pick the marketplace that matches the page

Each preview route is noindexed but followable, so publishers can test the widget without creating thin indexable pages. The attribution link points to the matching public calculator page.

Data sources

Pair the widget with citable fee data

The embedded calculator helps readers test their own listing. Use the Fee Index for same-input marketplace rows, Fee Changes for recent policy updates, and Seller Reports when an article needs a dated summary of fee pressure alongside the interactive widget.

Publishers can embed the calculator for utility and cite the data assets for source support in marketplace comparisons, pricing guides, and reseller resource pages.

Outreach angles

Match the pitch to the publisher page

The strongest outreach hook is data plus utility: cite the Fee Index or fee-change tracker for evidence, then offer the embeddable calculator as the reader-facing tool.

Reseller fee guide

Lead with the Fee Index for citable fee rows, then offer the widget so readers can test their own listing before leaving the article.

Marketplace news post

Lead with the Fee Changes timeline and Q1 reseller fee report when a publisher covers a fee update or seller policy change.

Tool or resource roundup

Lead with the no-signup embed: it adds a practical calculator to an existing resource page while keeping attribution visible.

Data-led publisher message

Publisher fit

Where the widget works best

Marketplace fee explainer articles
Reseller resource pages
Shipping and pricing guides
Side-hustle tool roundups
Platform comparison posts
Seller onboarding checklists
Outreach copy

Short pitch for editors

Use this when asking a publisher to include the widget in an existing resource page or fee guide.

Options
data-platform

ebay, etsy, poshmark, mercari, depop, facebook, stockx, whatnot, amazon, or grailed

data-height

iframe height in pixels; default is 560

data-title

optional accessible iframe title

Attribution

Keep the FlipCalc link with the widget

The widget is free to use when the visible powered-by-FlipCalc attribution stays below the calculator. That link helps readers verify the fee math, gives publishers a source to cite, and lets FlipCalc keep the widget free.