SLVARA ยท For publishers

A useful tool for your readers.

Add a wax seal calculator to your blog. No account or API key needed. It works independently of your site's styles.

Choose your embed

Attribution is optional. The linked version is an ordinary link. Change or remove it at any time; the calculator still works.

If your site removes scripts, turn off automatic height. The iframe can scroll internally.

Copy your code

Live preview

Install on your site

  1. Copy the HTML above.
  2. Paste it into an HTML or Embed block, not a text or code-formatting block.
  3. Publish a test page. Change the stamp diameter and expand the extra options to check the height.

WordPress: use a Custom HTML block. Your account and plan must allow iframe tags; some hosted plans or security plugins strip scripts or iframes.

Webflow, Squarespace and other builders: use an HTML/code embed block where your plan supports it. If scripts are removed, use the fixed-height version.

Static HTML: paste the snippet where you want the calculator. You can include more than one calculator on a page.

If your site blocks all embeds: link to the SLVARA Wax Seal Calculator instead. If you manage a Content Security Policy, allow this site's origin in frame-src and, only for automatic height, script-src.

For an article citation

You are welcome to reference the tool in your own words when it helps your readers. Optional example:

Data & privacy

Uses SLVARA's approximate round-stamp standards: 20 / 25 / 30 / 35 / 40 mm use 0.8 / 1.2 / 1.8 / 2.2 / 3.0 g. One stick is approximately 12.55 g; one bead approximately 0.35 g. Actual use varies.

The calculator runs in the reader's browser. It does not read your article, create tracking cookies, or send entered quantities to an analytics service. Its hosting provider processes ordinary requests to serve the files. Product links use generic UTM labels, not reader or publisher identifiers. Prices and availability are checked on SLVARA.

Automatic-height messages contain only the component type, version and height. They are checked against the iframe's window and origin.