Chat widget

Is your Trengo chatbot EU AI Act ready?

Article 50 asks that visitors know they are talking to an AI. Scan your site free, and read below exactly where that notice goes in Trengo.

Free · No account · Result in ~30s

Trengo and Article 50, briefly

Trengo is a Dutch vendor that bundles web chat, WhatsApp, email and social into one inbox. For Article 50 that means the widget on your site is only one of the places an automated reply reaches a customer. Fix the web widget alone and you leave untouched the channels that carry most of the traffic in the Benelux.

What our scans found on Trengo sites

We have not yet scanned enough sites where Trengo was the first widget we detected to say anything meaningful here. As soon as the sample is large enough it will appear, counts included. We would rather publish nothing than a percentage based on two sites.

How we detect Trengo

Our scanner looks for these signals on your public page. Two independent signals are required for a match, so a blog post that merely names the vendor does not count.

Script hosts
static.widget.trengo.euwidget.trengo.eu
JS globals
window.Trengo
DOM selectors
#trengo-web-widget

Where the AI notice goes in Trengo

Settings, Web widget, your widget, greeting, plus the first step of a flowbot.

  1. 1

    Open Trengo and go to Settings, Web widget.

  2. 2

    Pick the widget on your site and open the greeting.

  3. 3

    Set the AI notice in Dutch and in your second language.

  4. 4

    Go to Flowbots and open the flow that fires first.

  5. 5

    Edit the first step and publish the flow.

The sentence you paste

You are chatting with an AI assistant, not a person.

The welcome message only appears after opening. The banner snippet from the Compliance Kit covers the moment before that with a single script tag, and your AI transparency statement covers the question that comes after.

Watch out with Trengo: Trengo is a Dutch vendor, widely used in the Benelux. Set the notice in Dutch as well as your second language.

Trengo documentation: help.trengo.com

What goes wrong most often with Trengo

Three mistakes we run into on sites that did set the notice. Each one costs points in the scan, and each one takes minutes to fix.

Checking that it works in Trengo

Start with your channel list in Trengo and note which channels have a flowbot; the web widget is usually only one of three or four. Then test the widget in an incognito window, in every language you configured, by switching the browser language. For WhatsApp, message your own number from a device that has never been in contact, because an existing conversation skips the greeting. Each time, read only the very first message you get back.

After that you can scan again. Our scan looks at the same public page a visitor does, so what you see in an incognito window is roughly what we see.

Two dates

  • 2 August 2026: the transparency duty on interaction (Article 50) applies.
  • 2 December 2026: marking AI-generated content becomes relevant.

Frequently asked questions

We mostly use Trengo for WhatsApp.

If a bot runs on that channel, the same requirement applies: the first automated reply says it is AI. Our scan only looks at your website and says nothing about WhatsApp.

Does the banner work with the Trengo launcher?

Yes. The default 84 pixel offset fits the usual bottom-right position of the Trengo launcher.

Trengo is a Dutch company. Does that change anything?

Not for the obligation. The EU AI Act looks at who deploys the system towards people in the EU, not at where the vendor is established.

Running another widget as well?

Fix this for Trengo in about 15 minutes

The Compliance Kit contains a copy-paste disclosure banner (NL/EN/DE), an AI transparency statement, an AI system inventory and a step-by-step guide per widget.

See the Compliance Kit (€149)

Technical compliance tooling and templates. Not legal advice.