For Publishers

Add a free stress test
to your site.

Paste two lines of HTML. Your readers get an interactive portfolio stress test — no signup, no friction. You get engagement.

EMBEDDABLE CTA WIDGETS

Add a styled link box to your blog or website. The widget links back to BSL's free stress test. Choose the size that fits your layout.

LARGE — WITH DESCRIPTION

BLACK SWAN LAB

How crash-proof is your portfolio?

Stress-test against 2008, COVID, and 5 more historical crises. Free, no sign-up.

Run Free Stress Test

html

<!-- Black Swan Lab - Free Portfolio Stress Test -->
<div style="border:1px solid #C8A84B;border-radius:12px;padding:20px;background:#0a0a0f;max-width:400px;font-family:system-ui,sans-serif;text-align:center;">
  <p style="color:#C8A84B;font-size:12px;letter-spacing:2px;margin:0 0 8px;">BLACK SWAN LAB</p>
  <p style="color:#fff;font-size:18px;font-weight:bold;margin:0 0 8px;">How crash-proof is your portfolio?</p>
  <p style="color:#94a3b8;font-size:13px;margin:0 0 16px;">Stress-test against 2008, COVID, and 5 more historical crises. Free, no sign-up.</p>
  <a href="https://theblackswanlab.com/free-stress-test?ref=embed" style="display:inline-block;background:#C8A84B;color:#0a0a0f;padding:10px 24px;border-radius:8px;text-decoration:none;font-weight:bold;font-size:14px;">Run Free Stress Test</a>
</div>

SMALL — BUTTON ONLY

Stress-Test Your Portfolio Free

html

<!-- Black Swan Lab - Free Portfolio Stress Test -->
<a href="https://theblackswanlab.com/free-stress-test?ref=embed"
   style="display:inline-block;background:#C8A84B;color:#0a0a0f;padding:10px 24px;border-radius:8px;text-decoration:none;font-weight:bold;font-size:14px;font-family:system-ui,sans-serif;">
  Stress-Test Your Portfolio Free
</a>

INTERACTIVE IFRAME WIDGET

Embed the full interactive stress test directly on your page. Readers can run a test without leaving your site.

LIVE PREVIEW

EMBED CODE

html

<iframe
  src="https://theblackswanlab.com/embed/stress-test"
  width="100%"
  height="520"
  style="border:none;border-radius:16px;"
  title="Portfolio Stress Test by Black Swan Lab"
/>

CUSTOM ACCENT COLOR

html

<iframe
  src="https://theblackswanlab.com/embed/stress-test?accent=%23your-color"
  width="100%"
  height="520"
  style="border:none;border-radius:16px;"
  title="Portfolio Stress Test by Black Swan Lab"
/>

Replace %23your-color with your hex color (URL-encoded).

WHY EMBED

Free forever

No cost for you or your readers. We cover the infrastructure.

Zero setup

Paste the HTML. No API key needed for the basic widget.

Drives engagement

Interactive tools keep readers on your page longer and increase return visits.

Custom accent color

Pass ?accent=%23hex on the iframe to match your brand colors.

"Powered by BSL" attribution

A small branded link at the bottom — tasteful, not intrusive.

Mobile responsive

Works on all screen sizes out of the box.

NEED MORE CONTROL?

White-label API

Build your own UI on top of the BSL stress test engine. Programmatic access to all scenarios, custom rate limits, usage analytics. From $49/month.

See API Plans →

Questions? Want a custom integration?

hello@theblackswanlab.com

Add a free stress testto your site.

Add a free stress test
to your site.