In short
- No account, no sign-up: we don't ask for your name or email to use the site.
- No advertising cookies and no cross-site tracking.
- The little data we process is minimised, pseudonymised and deleted quickly (2 to 30 days in most cases).
- You can write to us at any time through the contact form.
Who is responsible?
The publisher of the En retard, chef website (see the legal notice), reachable through the contact form.
What we process, why and for how long
Traffic, next trains, journeys
These features use no personal data. The site queries Île-de-France Mobilités' open data itself: nothing about you is passed on to them. The “Near me” feature uses your location only in your browser, if you allow it: it is never sent to our servers. For bus stops, your browser downloads the list of stops in a square of about 2 km around you (the same list for everyone in that square, cached and never logged by us), then works out the distances itself: only that square is requested, never your exact position. The “Guide me” compass likewise uses your location and your phone's orientation only in your browser; it stops as soon as you close it.
Site language
By default, the site shows up in French or English depending on the language set in your browser (something every browser sends): no geolocation, and nothing is stored until you press FR / EN. Your choice is then kept in the erc_lang cookie.
“Ask the AI” assistant
- Your question and the page context (line, station, journey) are sent to Claude, by Anthropic (United States), our processor, to produce the answer. Under its commercial terms, this data is not used to train its models.
- 📍 Your location (optional): if you allow it (📍 button, or a question like “near me”, “from here”, “bus 70?”), it is used in your browser to find the nearest stations and bus stops. Only their names and the rounded distance go with your question, never your coordinates. Nothing is stored: the question log only notes that your location was used. You can turn 📍 off at any time.
- 🎙️ Dictation (optional): if you tap the mic, it is your browser that transcribes your voice, with its own speech recognition service (Google's on Chrome and Edge, Apple's on Safari). The audio never goes through our servers and we have no access to it: only the resulting text goes with your question, as if you had typed it.
- 📷 Screenshot (optional): if you attach one (📷, paste or drag), it is shrunk and stripped of its metadata (including a photo's GPS location) in your browser, then sent with your question to Claude (Anthropic) to work out the place and time of a meetup. We don't keep it: the question log only notes that an image was attached, without the answer. Avoid images that contain sensitive information.
- Place search: for a place that isn't a station (an address, a bar…), the AI only sends its name or address, never your location, to the Photon search service (komoot, Germany) or, failing that, Nominatim (OpenStreetMap Foundation). Place data © OpenStreetMap contributors (ODbL licence).
- Daily quota: a random identifier (
erc_aidcookie) and your IP address in hashed (unreadable) form are used to limit the number of questions per day. Retention: 2 days. - Improving the service: questions and answers are kept without IP address or identifier, after emails and phone numbers are automatically masked, for 30 days at most (and no more than 200), visible only to the publisher. Still, avoid writing personal information in your questions.
- Legal basis: our legitimate interest in providing the service, preventing abuse and improving it.
Contact form
- Your message, and your first name and email if you give them, are sent to us by email via Resend (United States), our email-sending processor, to the publisher's inbox. They are only used to read your request and reply to you, and are not stored on our servers.
- Retention: as long as it takes to handle your request, then 12 months at most.
- Anti-spam: your hashed IP address is kept for 2 days.
- Legal basis: our legitimate interest in replying to people who write to us.
Audience measurement
Vercel Web Analytics and Speed Insights measure the site's traffic and speed without cookies, in aggregate (page views, country, device type), with no cross-site tracking. We also keep aggregated internal counters (number of questions asked to the AI, messages received…), kept for 100 days. Legal basis: legitimate interest.
Hosting
Site hosted by Vercel (functions run in Europe, in Paris), which briefly keeps technical logs (including IP addresses) for security. Upstash database located in Frankfurt (European Union).
Cookies and storage on your device
erc_aid: the assistant's daily quota (free access limit), 2 days. Exempt from consent.erc_lang: the language you chose with the FR / EN button, 1 year. Exempt from consent (an interface preference you asked for).- Preferences kept in your browser (day/night mode, favourites, 📍 turned off…): never sent to our servers. Exempt from consent.
erc_admin: site administrator's session only.
Transfers outside the European Union
Anthropic, Resend and Vercel are US companies, as is the publisher's email provider. These transfers are covered by the European Commission's standard contractual clauses and, where applicable, by the EU–US Data Privacy Framework.
Your rights
You can ask to access, correct or delete your data, object to its processing or ask for it to be restricted, through the contact form. As we keep no identifier that names you, we usually cannot link data to a person (Article 11 of the GDPR). You can also file a complaint with the CNIL (the French data protection authority).