EU Launch Kit: SaaS Migration Case Study (GDPR + Hosting + Analytics)
Project summary
Client: mid-market B2B SaaS (2500 active users)
Goal: Become EU-compliant for analytics & hosting, reduce latency in EU, and preserve product analytics.
Delivery window: 21 days
Result: EU-compliant analytics (Plausible + consent gating), EU-region hosting, and 18% LCP improvement.
What we changed (technical highlights)
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Analytics: Replaced global GA4 tracking with a consent-gated GA4 setup + server-side event masking for EU visitors. Where required, we offered Plausible as an EU-hosted alternative.
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Hosting: Migrated critical assets to an EU region (Vercel/Cloudflare Workers or DigitalOcean Frankfurt) and set cache rules for dynamic routes.
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Cookie consent: Implemented an opt-in modal that blocks all marketing/analytics until acceptance. Consent logs retained for 12 months.
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DPA & Subprocessors: Provided a DPA draft and an updated Subprocessor list (Cloudflare, Google Workspace, GA4).
Measurable outcomes
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Legal readiness: Client can sign EU contracts with confidence (DPA in place).
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Performance: LCP improved by 18% in EU locations.
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Retention: No functional impact to analytics when consent was provided - product funnels remain intact.
Lessons learned & practical tips
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Don't remove analytics entirely - gate it. This preserves product insights and keeps marketing working after consent.
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Use EU regions for backups & logging if your clients insist on EU data residency.
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Document subprocessors publicly - clients ask for this first.
CTA
Want an EU Launch Kit audit for your SaaS? Reach out to contact@visoniq.com - we'll show your exact path to EU readiness.
- Visoniq TechCore