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SEO Consultant for Luxembourg — Technical Audit, Web Performance & Security

English-Speaking SEO Consultant for International Companies in Luxembourg Web Performance & Security Engineering

Specialised in technical SEO audits, Mozilla Observatory A+, mobile Lighthouse 100/100, and Answer Engine Optimization (AEO) for ChatGPT, Gemini, Claude, and Perplexity. All audit reports, monthly performance reports, and consulting calls delivered in fluent business English. GDPR-compliant. Fixed-fee pricing, contractual performance guarantee or full refund.

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Cited by Google AI — EN · DE · FR — May 2026

Listed by Google AI as a 'key provider' — in English, German and French.

Google AI Overview cites heliorank.lu as a "key provider" on three commercial queries across three native languages — the English version was cited 48 hours after deployment (10 May 2026), the German version 24 hours after its own (11 May 2026). Three citations across three languages, zero paid placement.

EN · native "Heliorank is a specialised independent consultant focusing on AI-driven search optimization, achieving high Lighthouse performance scores." Listed as "key provider" in the AEO & Performance section. — Google AI Overview, query "aeo and performance consultant for luxembourg" (12 May 2026)
DE · native „Heliorank: Unabhängiger SEO-Berater für Luxemburg, der technische Audits und AEO (KI-Optimierung) anbietet.“ EN: "Heliorank: independent SEO consultant for Luxembourg, offering technical audits and AEO (AI optimization)." · Listed among the "relevanten Ergebnissen" (relevant results) — Übersicht mit KI, Anfrage „agentur aeo luxembourg“ (12 May 2026)
FR · native « Heliorank est un consultant indépendant notable, affichant des scores Lighthouse de 100/100 et une spécialisation en AEO. » EN: "Heliorank is a recognized independent consultant, with Lighthouse 100/100 scores and an AEO specialisation." — Google AI Overview, requête « expert optimisation mozilla luxembourg » (2 May 2026)
Commercial validation
Luxembourg geolocation · May 2026
  • #1 independent SEO specialist luxembourg Verify →
  • #1 aeo and performance consultant for luxembourg + Google AI Overview Verify →
  • #1 NIS2 compliance technical SEO consultant + Google AI Overview Verify →
  • #1 i'm searching for the best AEO expert in luxembourg + Google AI Mode Verify →
  • #1 consultant AEO France/Belgique/Suisse/luxembourg + Google AI Overview (FR) Verify →
Multi-engine AI citations
Observed on 5 May 2026
  • ✓
    Google AI Overview · EN — listed as "key provider" in the AEO & Performance section
    Query: "aeo and performance consultant for luxembourg" · 12 May 2026
  • ✓
    Google AI Overview · DE — listed among the "relevanten Ergebnissen" (relevant results)
    Anfrage: „agentur aeo luxembourg“ · 12 May 2026
  • ✓
    Google AI Overview · FR — organic description quoted above
    Requête: « expert optimisation mozilla luxembourg » · 2 May 2026
  • ✓
    ChatGPT (anonymous session) — « consultant indépendant avec offre claire AEO (schema, llms.txt, optimisation ChatGPT) — très orienté technique + performance »
    [EN: "independent consultant with clear AEO offering (schema, llms.txt, ChatGPT optimization) — strongly technical + performance focused"] · Query (FR): « consultant AEO Luxembourg »

AI answer engines and Google AI Overviews are non-deterministic — these citations are accurate at the date observed and may vary depending on geolocation, personalization and algorithmic updates. The HELIORANK methodology optimizes the technical signals that make citation more likely, with no guarantee of persistence.

+ Technical authority cluster: heliorank.lu is also cited by Google AI Overview on 4 related queries (in French, the primary B2B search language in Luxembourg) — audit mozilla luxembourg, expert mozilla luxembourg, optimisation mozilla luxembourg, expert optimisation mozilla luxembourg — an authority signal on the web security and public scores vertical. Verifications under Luxembourg geolocation, 2 May 2026.

See the full public scoreboard (10 dated citations + scores) →
VIEW THE TECHNICAL AUDIT

Public scores, audited live in 30 seconds · HELIORANK.LU

MOZILLA OBSERVATORY
A+
10/10 tests passed
Verify →
QUALYS SSL LABS
A+
TLS 1.3, HSTS preload
Verify →
PAGESPEED MOBILE
100/100
×4 Lighthouse metrics
Verify →
SECURITY HEADERS
A+
CSP, X-Frame, Referrer
Verify →

All scores are public and verifiable by any third-party auditor.

Engineering-Driven Methodology

Luxembourg's SEO market is highly competitive — agencies, consultants, local freelancers. Technical scores (pure HTML with zero dependencies, Mozilla A+, Lighthouse 100/100/100/100) are not just engineering vanity metrics: Google explicitly factors Core Web Vitals into ranking because user experience directly impacts its credibility as a search engine. On the AI side, LLM crawlers (ChatGPT, Gemini, Claude, Perplexity) favour fast, semantically clean websites, leading to more reliable extraction and a higher likelihood of being cited. Technical excellence delivers a double advantage — stronger organic visibility on Google and better AEO visibility across AI answer engines.

1. Strategic diagnosis

Google Search Console review, semantic audit, competitive and positioning analysis. 90-day roadmap prioritized by business impact.

2. Comprehensive technical audit

We analyse Core Web Vitals, HTTP security headers, Schema.org validation, crawl and indexing. We identify Mozilla, Lighthouse and Google indexing blockers.

3. Advanced semantic optimisation

We don't just prepare your site for Google — we prepare it for AI answer engines (ChatGPT, Gemini). We structure your data — Person Schema, Organization graph, author signatures, external mentions — to feed the E-E-A-T signals (Experience, Expertise, Authoritativeness, Trustworthiness) Google and LLMs cross-reference when deciding whom to cite, so your business becomes the recommended answer in conversational and voice assistants.

4. Future-proof architecture

Static HTML site on Cloudflare Pages: natively compatible with the three AI use cases that matter in 2026.

  • •Readable by AI engines (Google AI Overview, ChatGPT, Gemini, Perplexity)
  • •Editable via AI assistants (Claude, Cursor) without paying a developer by the hour
  • •Scalable without heavy plugins: chatbot, translation, personalization as native modules

We optimize every millisecond to satisfy Google's algorithms and the emerging AI answer engines (AEO). A fast site is the essential foundation for ChatGPT or Gemini to recommend your business.

Discover the impact of speed on your visibility →

Measured. Tracked. Verified.

Mozilla A+ · mobile Lighthouse 100 · contractually guaranteed

Pricing — HELIORANK Offerings

Fixed-fee pricing (excl. VAT) with contractual performance guarantee. Full refund if the target score is not met within the agreed timeframe.

Performance Engineering

€4,500 + VAT
  • Site loads in under 2 seconds on mobile 4G (Google Lighthouse ≥95 contractually guaranteed)
  • Faster and more stable navigation on mobile (Core Web Vitals: LCP, INP, CLS meet Google standards)
  • High-performance architecture: Cloudflare Edge, modern AVIF/WebP images, smart loading
  • Lead time: 10 business days — 95+ or full refund
  • Guaranteed scope: static HTML, Astro, Hugo, Next.js. Pre-engagement audit included (€2,500, deductible). WordPress/Shopify: custom quote
DISCUSS THE PROJECT

SEO + Performance + Security Audit

€2,500 + VAT
  • Comprehensive 30+ page report: everything slowing your site, prioritised, with ready-to-deploy code
  • 4-axis technical audit: performance, accessibility, SEO structure, security headers
  • AI citation readiness (ChatGPT, Gemini, Perplexity): Schema.org + AEO markup
  • E-E-A-T audit (Experience, Expertise, Authoritativeness, Trustworthiness): Person Schema, author profile, credibility signals
  • 90-day action plan: what to fix now, in 30 days, in 90 days
  • Lead time: 7 business days
REQUEST THE AUDIT

AEO Setup

€1,800 + €300/mo
  • Your business visible in AI responses on ChatGPT, Gemini, Claude, Perplexity
  • Your business better understood by AI (Schema.org, enriched FAQ, llms.txt — direct signals to AI engines)
  • Monthly citation tracking: where your brand appears, on which queries, on which AI engine
  • Custom monitoring prompt set tailored to your positioning
  • Recommended after technical audit or performance optimisation — provides the technical foundation needed for AI indexing
  • 3-month minimum engagement (AI indexing latency)
START AEO

Additional services

INTRODUCTORY

Mozilla A+ — static HTML site

€2,000 + VAT
  • Mozilla Observatory A+ score contractually guaranteed
  • Reduced risk of compromise and impersonation (HSTS, CSP, X-Frame-Options at maximum settings)
  • Target stacks: Cloudflare Pages, Netlify, Vercel, SSG
  • Maintenance runbook + 30 days of support
  • Lead time: 5 business days — A+ or full refund
GET MY A+

Mozilla A+ — WordPress

€3,500 + VAT
  • Cloudflare Worker as a proxy in front of WordPress
  • Reduced risk of compromise without touching your hosting (hardened HTTP headers)
  • Automatic hash injection for inline styles
  • Compatible with any theme or plugin
  • Lead time: 7 business days — A+ or full refund
GET MY A+
SECURITY PRO

Security Pack Pro — static HTML

€3,500 + VAT
  • Mozilla Observatory A+ guaranteed
  • SecurityHeaders.com A+ guaranteed
  • SSL Labs A+ guaranteed
  • OWASP ZAP audit — report & remediation
  • Cloudflare WAF baseline enabled
  • NIS2 / GDPR / PCI-DSS compliant
  • Lead time: 7 business days — 3 A+ scores or full refund
SECURE MY SITE
SECURITY PRO

Security Pack Pro — WordPress

€4,500 + VAT
  • Mozilla Observatory A+ guaranteed
  • SecurityHeaders.com A+ guaranteed
  • SSL Labs A+ guaranteed
  • Cloudflare WAF baseline against WP exploits
  • WP hardening (XML-RPC off, REST API filtered)
  • OWASP ZAP audit & remediation plan
  • Lead time: 10 business days — 3 A+ scores or full refund
SECURE MY SITE

Cloudflare Migration with CMS

From €8,000 + VAT
  • Full migration to Cloudflare Pages
  • Git-based CMS (Decap, Sveltia) with WYSIWYG UI
  • Team training (2h) included
  • Mobile Lighthouse 100 + Mozilla A+ + 90 days of support
  • Pre-engagement audit at €2,500 (deductible upon signing)
SCOPE THE MIGRATION

Public scores verifiable in 30 seconds

Every score we claim is testable by any third-party auditor. No edited screenshots, no opaque metrics. Click, verify.

heliorank.lu

Agency site — triple A+ verifiable

wattdevis.fr

Case study: D → A+

sitigo.fr

Multilingual SaaS, 11 languages

Engineering Your Visibility


I'm Allaoua Nahnah, independent consultant with a Master's degree in Mathematics and Applications, Mathematical Engineering specialisation. My SEO expertise isn't a trend — it's a 15-year journey.


"By 2011, I was already applying algorithmic laws to dominate local searches. My first site — a 5-page showcase that brought me private math tutoring clients — ranked so well that a competitor offered to buy it for its strategic visibility. What was instinct back then has become a scientific method today."


Today, with HELIORANK, I help founders, B2B companies and independent professionals reach perfect mobile Lighthouse 100/100 and Mozilla Observatory A+ scores. I optimize your presence for traditional search engines, but also for the new AI answer engines (AEO) — ChatGPT, Gemini, Claude and Perplexity — so your business becomes the recommended answer in 2026.

TRUSTED EXPERTISE SINCE 2011
Google SEO
ChatGPT AEO
Gemini AI

Why HELIORANK?

  • ✓ Elite Performance: UX-optimised sites.
  • ✓ Precision: Data-validated strategies.
  • ✓ Remote model: Pricing 30 to 50% lower than local agencies.

Case Study: WattDevis.fr

Mozilla: D → A+

New B2C renewable-energy site migrated from WordPress to Cloudflare HTML. Mozilla Observatory score from 30/100 (D) to A+. Mobile Lighthouse 100/100/100/100 across the four axes.

Rapid Google indexing

Exceptional indexing velocity for a domain with no history: 0 → 608 daily impressions at Day 23, 103 unique queries indexed, average position 10.2 from launch — and continuing to climb.

Multi-engine AI visibility

29 citations in 14 days across the Bing AI ecosystem (Microsoft Copilot, ChatGPT search, Perplexity), peak of 10 citations/day. Source: Bing Webmaster Tools — AI Performance Overview.

READ THE FULL CASE STUDY

Expertise & Frequently Asked Questions

How much does an SEO audit cost at HELIORANK?

An SEO + Performance + Security audit is a fixed fee of €2,500 (excl. VAT), delivered as a comprehensive 30+ page docx with prioritised findings and a 90-day roadmap, in 7 business days. No hidden fees, no hourly billing.

What is the Mozilla Observatory A+ score?

Mozilla Observatory is the open-source reference tool for measuring HTTP security headers. The A+ score (100/100) certifies the presence of HSTS, CSP, X-Frame-Options and other best practices required for GDPR and NIS2 compliance. Publicly verifiable in 30 seconds.

Can you work with my WordPress site?

Yes. The Mozilla A+ WordPress offering (€3,500 + VAT) deploys a Cloudflare Worker as a proxy in front of your existing WordPress. No hosting change, no plugin to install, compatible with any theme. The A+ score is contractually guaranteed.

What is AEO and why does it matter in 2026?

AEO (Answer Engine Optimization), sometimes also called GEO (Generative Engine Optimization), optimizes a site to be cited by AI answer engines: ChatGPT, Gemini, Claude, Perplexity, Google AI Overviews. These AI answer engines capture a growing share of searches in France and Luxembourg. Setup at €1,800 + €300/month of monitoring.

Why an independent consultant rather than an agency?

Luxembourg SEO agencies typically charge €4,000 to €8,000 + VAT/month for equivalent services. HELIORANK operates fully remote (from Algeria, serving Luxembourg / France / international), with fixed-fee packages 30 to 50% lower and a contractual performance guarantee. If the target score is not met within the agreed timeframe, the engagement is fully refunded.

How is invoicing handled? In which currency?

Fixed-fee invoicing in EUR. HELIORANK is an independent consulting practice based in Sétif, Algeria, exporting services to EU and international clients. For EU B2B clients, the reverse-charge VAT mechanism applies (per EU VAT Directive 2008/8/EC) — your company self-accounts for VAT, and no VAT is added on the invoice from HELIORANK. Payment via SEPA, Wise, or international wire transfer.

Do you work with non-EU clients?

Yes. Fully remote engagement model since day one. Same fixed-fee terms, EUR invoicing, payment via international wire transfer or Wise. Clients in the UK, Switzerland, North America and beyond are welcome.

Is the engagement remote or on-site?

100% remote by default — all deliverables are measurable through public third-party tools (Mozilla Observatory, PageSpeed Insights, Security Headers, SSL Labs). On-site travel to Luxembourg available on request, with travel costs invoiced separately at cost. In practice, 95% of B2B SEO engagements are delivered fully remote.

Which language do you deliver in?

Written communication in French, English or German — your choice. Final deliverables (audit reports, runbooks, case study writeups) in your chosen language. Verbal consultation by phone or WhatsApp Audio in French or English. Communication via email, Slack, WhatsApp messaging.

Does HELIORANK handle multilingual sites in Luxembourg?

Yes — multilingual SEO is a core area of expertise. The Luxembourg market is officially trilingual (Luxembourgish, French, German) with English as business lingua franca. HELIORANK deploys and audits multilingual sites with full bidirectional hreflang, Schema.org inLanguage per variant, multilingual sitemaps, and native i18n architecture via Cloudflare Workers. Proof: heliorank.lu is cited by Google AI Overview, Übersicht mit KI and Aperçu IA in all three languages simultaneously (May 2026).

Coverage & Local Expertise

We serve B2B and B2C companies across the entire Grand Duchy of Luxembourg and France — fully remote.

Luxembourg City

Targeted optimization: Gasperich, Kirchberg, Limpertsberg and Bonnevoie.

Esch-sur-Alzette

Industrial businesses and B2B companies of the South and Terres Rouges region.

Differdange

Enhanced visibility to capture regional and cross-border audiences.

Dudelange

Strategies dedicated to B2B companies, e-commerce stores and ambitious founders.

Grand Duchy expertise zones

NORTH & CENTER

Ettelbruck, Wiltz, Diekirch, Mersch, Vianden.

EAST

Grevenmacher, Echternach, Remich, Junglinster.

WEST

Mamer, Strassen, Bertrange, Steinfort, Capellen.

SOUTH

Pétange, Sanem, Bettembourg, Mondorf, Schifflange.

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⚡ Personalised response within 24 hours

Includes a pre-analysis of your site's Lighthouse + Mozilla Observatory scores

By submitting this form, your data is transmitted securely and will never be shared with third parties.

Important note: Search engine optimization (SEO) is a process of technical and editorial optimization. Results depend on many factors (competition, history, user behavior, algorithmic updates). HELIORANK commits to the quality of the work delivered and the respect of best practices, but does not guarantee any specific position in Google search results.