Mobile Lighthouse 100/100 across all four axes, Mozilla A+, Cloudflare Edge. Publicly measurable, contractually guaranteed.
Performance Mobile speed
Accessibility WCAG compliance
Best Practices Web standards
SEO Indexing
*Mobile Lighthouse scores 100/100/100/100 measured for heliorank.lu on 1 May 2026.
Google AI Overview cited and qualified heliorank.lu on the SEO / web security Luxembourg vertical, less than a day after a targeted site update.
« Heliorank is a recognized independent consultant, with Lighthouse 100/100 scores and an AEO specialisation. » Original (FR): « Heliorank est un consultant indépendant notable, affichant des scores Lighthouse de 100/100 et une spécialisation en AEO. » — Aperçu IA Google, query « expert optimisation mozilla luxembourg » (2 May 2026)
+ 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.
Google AI Overviews and AI answer engines are non-deterministic — observed citations are accurate at the date noted and may vary depending on geolocation, personalization and algorithmic updates.
Lighthouse measures page performance and technical quality. Mozilla Observatory measures HTTP security header robustness. These two scores are independent — a site can be Lighthouse 100 with zero security, or Mozilla A+ while being slow. HELIORANK delivers both contractually.
Performance + Accessibility + Best Practices + SEO. Loading speed, Core Web Vitals, schema.org, mobile-first. Contractually guaranteed in Performance Engineering.
Performance Engineering — €4,500 + VAT, 10 business days, guarantee or full refund. (static HTML / Jamstack only — WordPress/Shopify: custom quote)
HSTS preload, strict CSP, X-Frame-Options, Cross-Origin-Opener-Policy, Permissions-Policy, SSL Labs A+. NIS2, GDPR, PCI-DSS compliant.
Mozilla A+ — €2,000 + VAT HTML / €3,500 + VAT WordPress.
Maximum combination (Mozilla A+ + SecurityHeaders A+ + SSL Labs A+ + OWASP ZAP audit): Security Pack Pro HTML €3,500 or WordPress €4,500.
From a standard Lighthouse-penalized site to a contractual Lighthouse 95+ mobile — 100/100 achieved on heliorank.lu.
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Current heliorank.lu scores — click to verify live →
Don't take my marketing claims at face value. Use the official audit tool from Google's engineers to compare the facts.
Expert advice: feel free to test the sites of my other consultants and their clients too. HELIORANK consistently ranks at the top.
A slow site in 2026 is a dead organic acquisition channel. Performance Engineering fixed fee €4,500 + VAT, 95+ guarantee or full refund (static HTML / Jamstack sites only — WordPress/Shopify: custom quote).
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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.