All the ways to contribute

Contributor guide

A step-by-step guide to writing a company entry for the Unlock My Data database.

Fill in an entry

I. Where to find the information?

Most of the information you need is in the company's privacy policy or legal notice. The link to these pages is usually at the very bottom of the website's home page.

Take BlaBlaCar as an example: scrolling to the bottom of blablacar.fr reveals the legal information you need to fill in the company entry.

Footer of the BlaBlaCar website with the legal links
The “Legal information” and “Transparency” links sit in the footer.

II. General information

a. Company name

The company name should not be confused with the name of the group it belongs to, nor with a single establishment.

BlaBlaCar example: it is an establishment with its own SIRET number. You must, however, show that it belongs to the company COMUTO, which has a SIREN number and is less well known.

Always use the well-known name: otherwise users will struggle to find the service in the list.
General information section of the entry, filled in for BlaBlaCar
In practice: known name “Blabla Car”, “belongs to a group” checked, group “COMUTO”.

How do you know whether it is an establishment belonging to a group? If the site is well built, the information appears in the legal notice or the privacy policy. For BlaBlaCar, Comuto is mentioned in the privacy policy:

“The data controller for journeys made on BlaBlaCar Bus is Comuto Pro […], a wholly-owned subsidiary of Comuto SA, whose registered office is at 84, avenue de la République — 75011 Paris.”

A mention of a subsidiary should raise a flag. Check the information across several sources:

BlaBlaCar Wikipedia page mentioning the company Comuto
The Wikipedia entry confirms: BlaBlaCar is developed by the French company Comuto.

b. Logo URL

Two options:

  • Download the image to your computer and insert it via “choose a file”;
  • or copy and paste the image address.
Right-click the image, then “Copy image address”. Be careful not to click “Copy image”.
Browser context menu, Copy image address option
Right-click → “Copy image address”.

Where to find the logo? On Wikipedia, Wikimedia or companieslogo.com. Always use the latest version of the logo. On Wikipedia you will sometimes find the evolution of the visual identity:

Evolution of the BlaBlaCar logos on Wikipedia
“Visual identities” section: pick the most recent logo.

c. Nationality

The nationality to enter is that of the parent company (if the company belongs to a group) or of the registered office. Do not confuse the location of an establishment with that of the registered office.

Check the information across several sources: the privacy policy may not be up to date after an acquisition. The page's last-updated date is a good indicator.

d. Author of the entry

Enter your first name or nickname. Ideally the same nickname as on Framateam: it makes feedback easier during review by the Unlock team and helps track how many entries each person has filled in.

III. Access to personal data

a. Contact email for the export

Enter the email address used to exercise your rights (access, deletion, portability…) or for any question related to data protection. It is usually in the “Your rights” section of the privacy policy. If access is via a form and no DPO address is given, leave this field empty.

b. Ease of access to data

Choose the level based on the documents required, the access methods offered, and how hard they are to find.

c. Required document(s)

Select the required documents. If several are requested, choose “Other” and simply list them.

d. Details of the request

Describe the procedure, keeping it concise. For example:

  • Send an email to … ;
  • Fill in the collection form (link).

e. Response time

Choose the time offered. If not stated and you have not made a request yourself, leave it blank.

f. Response format

Choose the format offered. If not stated and without a personal request, leave it blank.

If you received a ZIP file, do not enter “ZIP” but the format of the documents inside (Excel, Word, PDF…).

g. Website URL to make a request

For an online request form, enter the page URL. If the request is only by email or postal mail, leave it empty.

h. Postal address to make a request

If a postal address is provided for requests by mail, enter the physical address. Otherwise, leave the field empty.

IV. Sanctions and data transfers

a. CNIL sanction

Check the box if the company has already been sanctioned by the CNIL (the French DPA). If a procedure is ongoing, check the box and note “No CNIL sanction but ongoing procedure (detail)”.

Sanction details: date, authority, and the breach sanctioned. Be brief (e.g. “cookies breach”, “transparency breach”).

Useful sites:

Filtered search on Légifrance
Légifrance: filter by the “CNIL” collection and the “Sanctions” type.

b. Data transfer policy

Check the box if the company states that data may be transferred to countries other than France. This part is tricky: few companies clearly state their transfers and sub-processors — which reveals their lack of transparency.

The information is found in the privacy policy, the transfer policy (if any), the terms of use, or the cookie policy. Often scattered.

Excerpt from the BlaBlaCar privacy policy about transfers
BlaBlaCar example: a mention of transfers to “Third Countries” in the privacy policy.
If transfers outside the EU are stated without naming the countries, leave “Destination countries” empty and note “Data transfers outside the EU, countries unspecified” in the additional comments. You can also ask the DPO for these details.

c. Storage outside the EU

Check the box if data may be transferred outside the European Union. Often implicit: companies mention “partners” without saying where they are. When in doubt, check the box or ask the Unlock team on Framateam.

d. Transfer destination countries

Select the countries mentioned in the document covering transfers and/or the privacy policy.

e. Privacy policy URL

Enter the document URL. English version: only if it exists on the site, otherwise leave it empty.

f. Privacy policy quote

Paste only the excerpt about data transfers (5 lines max). No need to quote a generic paragraph about collection: it adds nothing to the analysis.

English version: use the English policy if it exists, otherwise a translator such as DeepL — proofreading the result.

V. Recommended alternatives

An alternative is a company offering substantially the same services, but more protective of its users' data, more sovereign or more free/open.

Examples of more data-respectful alternatives
Examples: Signal over WhatsApp, PeerTube over YouTube, Proton over Gmail…

VI. Mobile application

a. Application name

Enter the name as it appears on the Play Store or App Store. For BlaBlaCar: “BlaBlaCar: Bus, Train, Carpool”.

BlaBlaCar listing on the Google Play Store
Use the exact name shown on the store.

b. Play Store / App Store link

Enter the application's address. Right-click the app name → “Copy link address”. For BlaBlaCar: play.google.com/store/apps/details?id=com.comuto.

Context menu: Copy link address
Right-click → “Copy link address”.

Ready to contribute?

Keep this guide open in a tab while you fill in the entry.

Fill in a new entry

Guide written by dominique_usa, edited and improved by Charlotte Leriche. Version 0.2 — 27 July 2026.