Cookie Policy & Local Storage Notice
1. Statutory Framework and Application
This Cookie Policy governs the technical architecture and data storage protocols deployed by Markdex App ("we", "us", or "our") across this documentation portal. As our primary operational base is situated in Birmingham, United Kingdom, our handling of online identifiers, HTTP cookies, and local client-side storage technologies is strictly aligned with the Data Protection Act 2018, the United Kingdom General Data Protection Regulation (UK GDPR), and the Privacy and Electronic Communications (EC Directive) Regulations 2003 (PECR), as supervised by the Information Commissioner's Office (ICO).
This document provides complete visibility into how transient memory files, persistent device tokens, and local cache entries are managed when you access our field manuals, synchronization diagnostics, and satellite mapping procedures.
2. Understanding Cookies, Web Storage, and Device Telemetry
Cookies are small text strings placed onto your local computing terminal or mobile device when interacting with web services. Alongside standard HTTP cookies, modern web interfaces make use of HTML5 Local Storage and Session Storage keys to preserve state parameters, manual view options, and offline verification flags without placing unnecessary strain on data bandwidth.
Within our platform, these technologies serve solely to ensure document stability, maintain security sessions, track technical display preferences, and collect anonymous telemetry regarding manual navigation performance.
3. Categorisation of Storage Technologies
We classify all storage vectors into structured tiers in accordance with statutory definitions and ICO guidance:
A. Strictly Necessary & Operational Records (Exempt from Consent)
Essential for core routing, platform security, layout integrity, and retaining consent records. These cannot be disabled through our consent panel as the site cannot function reliably without them.
| Identifier / Key | Provider | Purpose | Lifespan |
|---|---|---|---|
| __mrdx_consent_state | Markdex App | Preserves user consent choices for PECR compliance. | 12 Months |
| __mrdx_sec_token | Markdex App | Cross-Site Request Forgery (CSRF) mitigation token. | Session |
| manual_ui_density | Markdex App (Local Storage) | Stores layout display settings for technical manuals. | Persistent |
B. Performance & Analytical Diagnostics (Consent Required)
Aggregated diagnostic data enabling us to evaluate reading duration, identify broken anchor links in firmware walkthroughs, and monitor synchronization manual access frequencies.
| Identifier / Key | Provider | Purpose | Lifespan |
|---|---|---|---|
| _mrdx_perf_counter | Markdex Analytics Engine | Measures manual load times and network latency metrics. | 90 Days |
| _mrdx_nav_path | Markdex Analytics Engine | Tracks procedural traversal across map update guides. | 30 Days |
C. Functional & Telemetry Customization (Consent Required)
Maintains high-level client preferences, including search index positions for peripheral hardware protocols and cached documentation sections.
| Identifier / Key | Provider | Purpose | Lifespan |
|---|---|---|---|
| specs_filter_history | Markdex App (Local Storage) | Remembers device filter toggles on compatibility tables. | 6 Months |
4. Legal Grounds Under UK Data Protection Law
Under Regulation 6 of the Privacy and Electronic Communications Regulations 2003 (PECR) and Article 6 of the UK GDPR:
- Strictly Necessary Storage: Implemented under Regulation 6(4)(b) of PECR and Article 6(1)(f) UK GDPR (Legitimate Interests) to securely deliver the informational resources requested by the visitor.
- Analytical and Customization Storage: Deployed exclusively under Article 6(1)(a) UK GDPR and Regulation 6(2) PECR upon obtaining your prior, explicit, unambiguous, and freely given consent via our preference manager.
5. Managing Your Preferences and Consent
You retain the right to modify, grant, or revoke your consent for non-essential storage categories at any moment without affecting your access to basic technical manual articles.
Invoking this controller opens the central consent manager, enabling individual toggle management for Analytics and Functional storage tokens.
6. Web Browser Configuration and Storage Clearance
In addition to our configuration console, all modern web browsers allow you to inspect, block, or delete cookies and web storage values. Guidance for common browsing environments:
- Google Chrome: Settings > Privacy and security > Third-party cookies > See all site data and permissions.
- Mozilla Firefox: Settings > Privacy & Security > Cookies and Site Data > Manage Data.
- Apple Safari: Settings > Privacy > Manage Website Data.
- Microsoft Edge: Settings > Cookies and site permissions > Manage and delete cookies and site data.
Please note that clearing local storage items will reset your saved viewing parameters and prompt the consent interface upon your subsequent visit.
7. Further Documentation & Data Rights
For detailed details regarding our organizational handling of user information, retention periods, and your rights under UK data legislation (including subject access requests, rectification, and erasure), please review our companion legal documents:
8. Controller Identification and Contact
Queries regarding this Cookie Policy or our deployment of client-side tracking tokens should be directed to the technical compliance department at Markdex App: