Privacy notice
Last updated: 18 October 2026
Who is responsible
Stelios Strongylis, independent consultant, Athens, Greece, is the data controller for this website, strongyl.is. Contact: stelios@strongyl.is.
Contact form
When you send a message I receive your name, email address, the areas you selected and your message. I use them only to reply to you and to discuss possible work together. The legal basis is steps taken at your request before a possible contract and my legitimate interest in answering inquiries (GDPR Art. 6(1)(b) and (f)).
I keep messages for 12 months from our last exchange, then delete them, unless we start working together.
Analytics
The site uses Google Analytics 4 with Google Consent Mode to count visits and contact-form submissions.
- If you accept, Google Analytics sets cookies on your device and records pages visited, approximate location, device and browser type, and whether the contact form was sent. The legal basis is your consent (Art. 6(1)(a)).
- If you reject, no analytics cookies are set. Google still receives limited, cookieless signals (such as the page, time and browser type) with no identifier stored on your device, used only for aggregated measurement.
Advertising features and Google Signals are switched off, and the data is not used for advertising. Google keeps analytics data for 14 months. You can change your choice any time through Cookie settings in the footer.
Cookies and storage
| Name | Provider | Purpose | Duration |
|---|---|---|---|
cookie_consent | strongyl.is | Remembers your cookie choice (browser storage, strictly necessary) | 12 months |
_ga | Distinguishes visitors (only after Accept) | 2 years | |
_ga_<ID> | Keeps session state (only after Accept) | 2 years |
After 12 months the site asks for your choice again.
Hosting and delivery
Vercel Inc. hosts the site and runs the contact form, processing technical request data such as IP address to deliver the page and keep it secure (legitimate interest, Art. 6(1)(f)). Resend delivers contact-form messages to my inbox.
Who processes your data
- Vercel Inc. (hosting and contact form)
- Resend (email delivery)
- Google Ireland Ltd. and Google LLC (analytics)
Some of these providers process data in the United States. Transfers rely on the EU-US Data Privacy Framework or Standard Contractual Clauses. I do not sell your data.
Your rights
Under the GDPR you can ask to access, correct, delete or export your data, restrict or object to processing, and withdraw consent at any time without affecting earlier processing. Email me at the address above and I will reply within one month. You can also complain to the Hellenic Data Protection Authority (dpa.gr).