Trustpilot Review Widgets via iFrame

Use the iframe embed when the host environment strips <script> tags. The standard script loader is the recommended path because it auto-resizes and mounts inline. But on locked-down enterprise CMSes, SharePoint, ServiceNow, WordPress.com Free, intranet portals, and HTML newsletters, scripts get stripped — and Trustpilot's own TrustBox embed (also script-only) doesn't work either. BlooTrue's iframe-direct mode is the only path on those hosts. The iframe URL is the same endpoint the script loader mounts internally, so the widget itself is identical.

Common ones include: locked-down enterprise CMSes that strip <script> tags as a security policy; SharePoint and ServiceNow intranet portals where IT blocks third-party scripts; the WordPress.com Free plan; Notion and other headless CMSes that whitelist embeds by domain; some wikis that allow only iframe URLs; and HTML newsletters where the recipient's email client preserves iframes but strips scripts. TrustBox is also script-only, so it fails on every one of those hosts — BlooTrue's iframe is the workaround.

No. BlooTrue works with any public Trustpilot business profile, including free ones. The iframe embed is independent of Trustpilot's own TrustBox product — you don't need a Trustpilot Business plan, you don't need a TrustBox subscription. Just paste your trustpilot.com/review/yoursite.com URL into the BlooTrue builder that opens when you pick a style below.

Generate the standard embed code in the BlooTrue builder, then read the <div> class. Your ID is the part after blootrue-widget- — for example, in class="blootrue-widget-abc123" the ID is abc123. Copy that string into the iframe src URL: https://api.blootrue.com/api/widgets/embed/abc123/render.

No — and this is the main tradeoff of iframe mode. Cross-origin iframes can't communicate their natural height back to the parent page without postMessage, and most script-restricted environments also strip postMessage handlers. So you have to set a manual min-height on the iframe. For Trustpilot review widgets, 600–800px is a reasonable default. If you need true auto-resize, use the standard script embed instead — it's the recommended path whenever the host environment allows JavaScript.

Yes. The iframe URL https://api.blootrue.com/api/widgets/embed/YOUR_ID/render is the same endpoint the script loader mounts internally. Same renderer, same Trustpilot reviews, same theme, same layout — pixel-identical visual output. The only difference is the mount strategy.

No — and this is a meaningful tradeoff. The schema.org Review and AggregateRating JSON-LD lives inside the iframe document, not on the host page. Google does not bubble schema from a cross-origin iframe up to the parent page, so star rich snippets won't fire on the host URL via the iframe embed. If you need rich snippets on the host page, use the standard script embed — it injects the JSON-LD directly into the host page's DOM. The iframe embed is purely a visual display option for environments where scripts aren't allowed.