Overview

NOCTIS is the personal site of S. Markakis (SP1R4), based in Crete, Greece. It hosts security research, technical writeups, and a brief services brochure. This page explains what data the site collects and how you can reach the data controller. Plain language; no dark patterns.

What this site collects

The site is statically hosted on GitHub Pages. It does not set cookies, use third-party tracking, or build a profile of you.

• Anonymous analytics (optional, may be enabled): page views via GoatCounter — no cookies, no fingerprinting, no IP storage after a short hash. Respects your Do-Not-Track header.
• Service worker cache: stored locally in your browser to make the site work offline. You can clear it via DevTools → Application → Storage → Clear site data.
• Reading-position resume: when you read a writeup, your scroll position is stored in your browser's localStorage under the key prefix noctis-resume: so you can return to where you left off. It never leaves your device.
• GitHub Pages access logs are kept by GitHub for the duration of their own retention policy; see their privacy statement.

Contact methods

The site links to Email, Telegram, Viber, and X (Twitter). When you reach out via any of these, the conversation is governed by that service's own privacy policy. Messages you send are used only to respond to your inquiry and to set up follow-up work if applicable.

Your rights (GDPR)

If you are in the EU/EEA, you have the right to access, correct, restrict, or delete any personal data we hold about you, the right to data portability, and the right to complain to a supervisory authority. To exercise any of these rights, email sp1r4.work@gmail.com.

Security disclosure

Found a security issue affecting this site or anything it ships? See /.well-known/security.txt for the canonical reporting channel.

Changes to this page

Material changes are versioned through the public git history at SP1R4/SP1R4.github.io. Last reviewed: May 2026.