Samir Boulahtit
78ee05f50e
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2.5 KiB
.lu Domain Lead Generation — Research Findings
Research on data sources, APIs, legal requirements, and cost analysis for the prospecting module.
1. Data Sources for .lu Domains
The official .lu registry (DNS-LU / RESTENA) does not publish zone files. All providers use web crawling to discover domains, so no list is 100% complete. Expect 70-80% coverage.
Providers
| Provider | Domains | Price | Format | Notes |
|---|---|---|---|---|
| NetworksDB | ~70,000 | $5 | Zipped text | Best value, one-time purchase |
| DomainMetaData | Varies | $9.90/mo | CSV | Daily updates |
| Webatla | ~75,000 | Unknown | CSV | Good coverage |
2. Technical APIs — Cost Analysis
Technology Detection
| Service | Free Tier | Notes |
|---|---|---|
| CRFT Lookup | Unlimited | Budget option, includes Lighthouse |
| Wappalyzer | 50/month | Most accurate |
| WhatCMS | Free lookups | CMS-only |
Approach used: Custom HTML parsing for CMS, JS framework, analytics, and server detection (no external API dependency).
Performance Audits
PageSpeed Insights API — free, 25,000 queries/day, 400/100 seconds.
SSL Checks
Simple HTTPS connectivity check (fast). SSL Labs API available for deep analysis of high-priority leads.
WHOIS
Due to GDPR, .lu WHOIS data for private individuals is hidden. Only owner type and country visible. Contact info scraped from websites instead.
3. Legal — Luxembourg & GDPR
B2B Cold Email Rules
Luxembourg has no specific B2B cold email restrictions per Article 11(1) of the Electronic Privacy Act (applies only to natural persons).
Requirements:
- Identify yourself clearly (company name, address)
- Provide opt-out mechanism in every email
- Message must relate to recipient's business
- Store contact data securely
- Only contact businesses, not private individuals
Legal basis: Legitimate interest (GDPR Art. 6(1)(f))
GDPR Penalties
Fines up to EUR 20 million or 4% of global revenue for violations.
Key violations to avoid:
- Emailing private individuals without consent
- No opt-out mechanism
- Holding personal data longer than necessary
Recommendation
- Focus on
info@,contact@, and business role emails - Always include unsubscribe link
- Document legitimate interest basis
4. Cost Summary
| Item | Cost | Type |
|---|---|---|
| Domain list (NetworksDB) | $5 | One-time |
| PageSpeed API | Free | Ongoing |
| Contact scraping | Free | Self-hosted |
| Tech detection | Free | Self-hosted |
Working MVP costs under $25 total.