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UK Services
Zero-Downtime Cutover301 Redirect MappingGDPR Compliant

Website Migration Agency UK

Dein CMS verliert Traffic im Schlaf — Hier ist der Grund

99.9%
SEO Retention
Rankings preserved
0s
Downtime
Atomic deploy swaps
95+
Lighthouse Score
Post-migration target
60-day
Monitoring
Post-launch included
What Breaks When You Migrate — And What Actually Gets Fixed

Your site ships 2.8MB of JavaScript before a buyer sees your headline. A headless CMS migration rips out the monolith — WordPress, Drupal, TYPO3, Sitecore — and splits your content layer from the frontend. Your backend becomes an API-driven Supabase or Sanity instance. Your frontend runs Next.js with React Server Components. Pages load in under 800ms. Your hosting bill drops 40–60% the moment you switch to serverless. And when Google's crawler hits your site? It sees clean HTML, structured data, and zero render-blocking scripts. That's the difference between a 92 Core Web Vitals score and a 48. Your rankings stop haemorrhaging the day the migration goes live.

Wo Projekte scheitern

Legacy CMS platforms routinely score below 50 on Core Web Vitals Google demotes slow sites. Every 100ms of delay costs you 1% in conversions.
WordPress and Drupal push security patches monthly — and they break things Unpatched CMS platforms are the #1 attack vector for UK businesses right now.
Hosting costs keep climbing whenever traffic spikes Monolithic CMS servers can't scale elastically, so you're paying for peak capacity 24 hours a day whether you need it or not.
Content editors end up working around the backend rather than with it That leads to inconsistent content and SEO drift creeping across your pages.
If a previous migration attempt tanked your rankings for months, you already know how badly botched 301 redirects and missing schema markup can hurt organic traffic — sometimes permanently. Botched 301 redirects and missing schema markup can tank organic traffic permanently.
GDPR compliance gets bolted onto a stack that was never designed for it ICO fines go up to £17.5M or 4% of global turnover. A cookie consent plugin won't save you.

Compliance

301 Redirect Mapping

We crawl every URL on your legacy CMS and build a complete redirect map before we touch anything. Canonical tags, hreflang attributes, and structured data all transfer intact.

GDPR Data Audit

We run a full audit of personal data sitting in your current CMS. Supabase Row-Level Security and UK/EU-hosted PostgreSQL handle data isolation and encryption at rest.

Zero-Downtime Deploy

Blue-green deployments via Vercel with atomic swaps keep your old site live until the new stack clears automated health checks. Nothing goes live until it's ready.

Content Schema Transform

WordPress ACF fields, Drupal Paragraphs, TYPO3 Flux elements, Sitecore Helix modules — they all map to clean headless schemas. Nothing gets left behind.

SEO Monitoring Dashboard

We watch your rankings through Google Search Console for 60 days after launch. Automated alerts flag ranking drops, crawl errors, and broken redirects the moment they show up.

Auth & Consent Migration

User accounts move to Supabase Auth with OAuth, Magic Links, and JWT. Consent tracking gets rebuilt with proper GDPR-compliant flows and full audit logs.

Was wir bauen

Score below 50 on Core Web Vitals because your CMS ships 3MB of unused JavaScript

Pull 10,000+ WordPress posts, ACF fields, and media into Supabase via WPGraphQL in under 48 hours

Break production every time WordPress or Drupal pushes a security patch

Extract Drupal entities, paragraphs, and JSON:API data into Sanity with full content modelling intact

Pay for peak server capacity 24/7 even when your traffic flatlines at night

Migrate TYPO3 Flux elements and TemplaVoilà templates using custom scripts that preserve your content structure

Watch content editors build workarounds because the backend fights them

Decompose Sitecore Helix modules and export 50,000+ assets without breaking enterprise workflows

Lose 30–60% of organic traffic when botched 301 redirects kill your ranking history

Configure PostgreSQL, Edge Functions, Realtime subscriptions, and Row-Level Security for your data layer

Face ICO fines up to £17.5M because GDPR compliance got bolted onto a non-compliant stack

Deploy Next.js App Router with ISR, React Server Components, and dynamic 301 middleware that locks in your SEO equity

Unser Prozess

01

Migration Audit

First, we crawl your legacy CMS — every URL, custom field, plugin, and data relationship. You get a migration feasibility report with a risk assessment and redirect map before anything moves.
Week 1-2
02

Architecture & Schema Design

Then we design the architecture. We pick your headless CMS (Sanity, Payload, or Supabase-native), design the content schema, and plan the frontend component structure. Everything gets signed off before a single line of code is written.
Week 2-3
03

Content Extraction & Transform

Data migration comes next. Automated scripts pull content via API or direct database export, clean and transform it, then load it into the new headless backend with validation at every step.
Week 3-5
04

Next.js Build & Integration

The build phase delivers a Next.js 15 frontend with App Router, wired to Supabase Auth, Edge Functions, and your headless CMS — with full 301 redirect middleware already in place.
Week 4-7
05

Zero-Downtime Cutover & Monitoring

Launch runs on Vercel via blue-green deployment. The old site stays live until every health check passes. Then 60 days of post-launch SEO monitoring with weekly reports.
Week 8+
Next.js 15SupabaseVercelSanityPayload CMSPostgreSQLDockerGitHub Actions

Häufige Fragen

Wie lange dauert eine CMS-Migration zu Next.js?

Die meisten Migrationen dauern 6–10 Wochen, je nach Seitenzahl und Komplexität des CMS. Einfache WordPress-Seiten mit unter 2.000 Seiten sind in etwa 6 Wochen fertig. Enterprise-Migrationen von Sitecore oder Drupal mit benutzerdefinierten Modulen und über 50.000 Seiten dauern 12–16 Wochen. Jedes Projekt beginnt mit einem detaillierten Audit — keine Überraschungen.

Verliere ich mein Google-Ranking während der Migration?

Nein. Wir erstellen vor der Umstellung eine vollständige 301-Redirect-Map, die jede URL, jedes Canonical-Tag, jedes hreflang-Attribut und jedes strukturierte Daten-Markup erhält. Nach dem Start überwachen wir Google Search Console 60 Tage lang und beheben Crawl-Probleme innerhalb von 24 Stunden. Unsere Kunden behalten 99,9 % ihres organischen Traffic.

Ist Supabase für UK-Unternehmen GDPR-konform?

Ja. Supabase läuft auf EU-gehosteter PostgreSQL mit Verschlüsselung im Ruhezustand und bei der Übertragung. Wir konfigurieren Row-Level Security für Datenisolation, bauen Consent-Tracking über Supabase Auth neu auf und stellen sicher, dass alle Datenverarbeitungen UK GDPR und ICO-Anforderungen erfüllen. Deine Daten verlassen keine EU-Rechenzentren.

Was bedeutet Migration ohne Ausfallzeiten?

Deine bestehende Seite bleibt während des gesamten Build-Prozesses live. Am Umstellungstag deployen wir zu Vercel mit Blue-Green-Deployment — der DNS-Switch ist atomar und sofort. Automatisierte Health-Checks verifizieren jede Seite, bevor der Traffic zum neuen Stack wechselt. Nutzer treffen nie auf eine Fehlerseite.

Kannst du benutzerdefinierte WordPress-Plugins und ACF-Felder migrieren?

Ja. Wir extrahieren Advanced Custom Fields, benutzerdefinierte Post-Types, WooCommerce-Produkte, Gravity Forms-Einreichungen und Plugin-spezifische Daten über WPGraphQL oder REST API. Benutzerdefinierte Funktionen werden als Next.js-Komponenten mit Supabase Edge Functions oder nativen Headless-CMS-Features neu aufgebaut — keine Plugin-Abhängigkeiten werden übertragen.

Wie viel kostet eine Website-Migration im UK?

Einfache WordPress-Migrationen beginnen bei £10.000 für Seiten unter 2.000 Seiten. Mid-Market-Projekte mit Drupal oder TYPO3 mit benutzerdefinierten Content Models kosten typischerweise £20.000–£40.000. Enterprise-Sitecore-Migrationen mit Multi-Site, mehrsprachiger Unterstützung und komplexen Datenbeziehungen beginnen bei £60.000. Alle Angebote sind zum Festpreis — ohne versteckte Kosten.

CMS Migration from £10,000
Fixed-fee. 60-day post-launch SEO monitoring included.
See all packages →
Next.js DevelopmentCore Web Vitals OptimizationWordPress to Next.js Migration

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We'll assess your current CMS and deliver a migration plan within 48 hours.

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