How to add a reviews widget to Ghost

In Ghost the badge goes in an HTML card inside a post or page, or in Code Injection for the whole site.

Step by step

Claim your free Fiducia page. Open the owner area, enter your domain and confirm with the link we send to an email address on that domain. Your public review page, badge and widget are free.
Copy the code. Replace yourshop.com with your domain. The badge shows your rating and links to your review page; the widget shows your latest reviews as a carousel, list or grid.
Badge (with review structured data):
```
<script src="https://fiducia.lumnika.com/widget/fiducia-badge.js" data-domain="yourshop.com" data-schema="1" async></script>
```
Reviews widget:
```
<script src="https://fiducia.lumnika.com/widget/fiducia-reviews.js" data-domain="yourshop.com" data-layout="carousel" async></script>
```
Both load asynchronously, use no cookies and are isolated from your site's CSS. Options (layout, language, theme, number of reviews): see the live demo
Paste it in Ghost. In the editor type /html (or click + and choose HTML) to add an HTML card, paste the snippet and publish. On the site it shows as the badge or widget.
Turn on review rich snippets. For every page open Settings, then Code injection, paste the badge snippet in Site footer and save.
Collect reviews automatically. Ghost charges paid members through your own Stripe account, so the Stripe webhook in your dashboard invites each new paying member with no extra tools.

Automatic invites from your {name} payments

If you take payments through Stripe (memberships, payment links, checkout), Fiducia can invite every paying customer without any code: add a webhook endpoint in Stripe with the URL from your dashboard. The same customer is invited at most once per period.

Set up the Stripe webhook in your dashboard

Any other tool (Zapier, Make, n8n or your own backend) can send an invite with one HTTP request to the invites API. Create the API key in your dashboard (Pro):

curl -X POST https://fiducia.lumnika.com/api/v1/invites \
  -H "Authorization: Bearer fk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"email":"customer@example.com","name":"Maria","orderRef":"1042"}'

The response is 202 with the invite link. Sending the same orderRef again returns 409 and no second email, so retries are safe. Limit: 500 invites per 24 hours.

Questions

Will the widget slow down my Ghost site?

No. The script is small, loads asynchronously after your page, has no dependencies and sets no cookies. If the review service is unreachable the badge simply does not appear.

Will Google show review stars for my site?

Google does not show star snippets for reviews a business publishes about itself on its own site (self-serving reviews of LocalBusiness and Organization). The structured data is still read by other search engines and by AI assistants such as ChatGPT, Perplexity and Gemini, and your public Fiducia page is a separate site where your rating can appear.

Which Ghost plan do I need?

HTML cards and Code injection are built into Ghost: self-hosted Ghost and Ghost(Pro) sites both have them (check your Ghost(Pro) plan if a script does not run).

Is it free?

Yes: the public page, the badge, the widget with your latest reviews and manual invites are free. Pro (€19/$19 a month, 14-day free trial) adds automatic invites (Stripe, API, plugins), bulk CSV invites, up to 50 reviews in the widget and no branding.

Your review page is waiting

Claim it in two minutes, then paste one line of code on your site.

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Other platforms: Wix · Squarespace · Webflow · BigCommerce · Framer · WordPress · WooCommerce · Shopify · HTML

Menus and plan requirements for Ghost checked against the official documentation on 1 October 2026: ghost.org, ghost.org