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Tadna

Privacy policy

TADNA LTD is the controller described here. The public catalogue can be browsed without a public account and without advertising analytics.

Last updated: 2026-08-31

Controller and contact

TADNA LTD, company 16394791, at 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom is the controller. Use tadna@tadna.com, the privacy topic in the form, or post marked “Data Protection”. This is also the current channel for any data-protection enquiry.

Scope and sources

This policy covers visitors, correspondents and authorised administrators. Data comes directly from forms and sessions, automatically from service use, or from public editorial sources. Product research is not intended to profile people; a public professional reference can be reviewed on request.

  • IP and network information, time, method, requested URL, response and referrer.
  • Browser, operating system or device, language, user agent and required headers.
  • Errors, abuse limits, security events, searches and URL parameters recorded for operation and diagnosis.

Contact-form data

  • Name, email, topic, message and optional related URL.
  • Language, consent time and handling status.
  • User agent and a pseudonymised cryptographic IP hash for abuse prevention.
  • Temporary captcha token, XSRF token and session needed to validate the submission.

Administration and offers

  • Authorised staff account, protected credentials, session, IP, user agent and audit activity.
  • Offer clicks counted only in aggregate by product, retailer, market, platform, domain and day.
  • A retailer receives normal connection information after the user chooses to leave Tadna.

Purposes and lawful bases

  • Providing catalogue, search, comparison and contact: requested service or pre-contract steps where relevant.
  • Security, fraud prevention, diagnosis, aggregate click measurement and editorial integrity: legitimate interests.
  • Corrections, rights, claims, accounting and official requests: legal obligations and legitimate defence interests.
  • Any future non-essential storage or marketing: prior consent.

Required information

Name, email, topic, message, acceptance and captcha are required to submit the form; without them Tadna cannot validate or answer. The related URL is optional. Ordinary catalogue browsing does not require identity.

Recipients

Hosting, database, email, backup, security and technical-support providers may process data under instructions; advisers and authorities may receive it where necessary or required. Personal data is not sold or rented. Retailers receive no contact-form data from Tadna.

International transfers

Where Tadna Ltd controls a transfer outside the UK, it uses an adequacy decision or another valid safeguard such as contractual clauses and relevant assessments. Details of the safeguard may be requested. External retailer visits are also governed by the destination policy.

Retention and security

Data is kept only while needed for purpose, legal duties and claims. Technical logs rotate for security and diagnosis; ordinary sessions expire after 120 minutes of inactivity; messages remain while handled and for a reasonable evidence period; authorised accounts and audits remain for applicable security and compliance periods.

Controls include HTTPS, restricted administration access, request-forgery protection, rate limiting, protected secrets, audit records and backups. No connected service can guarantee zero risk.

Your rights

Depending on the legal basis, you may request access, correction, erasure, restriction, portability, withdrawal of consent and complaint. Identity evidence may be requested. Tadna responds without undue delay and normally within one calendar month; the law allows an extension for complex requests with notice.

Right to object

You may object on grounds relating to your situation to processing based on legitimate interests, and at any time to direct marketing. Tadna does not currently conduct direct marketing to public catalogue visitors. Mark your request “Objection” or “Data Protection”.

Automation, children and complaints

AI is used on product information, not for solely automated decisions producing legal or similarly significant effects on visitors. No advertising profiling operates on the public site. Tadna does not knowingly request children’s data.

You may complain to the Information Commissioner’s Office at ico.org.uk or another competent authority. This policy changes when functions, providers or rules change; the displayed date identifies its version.