Enterprise Migration Engineering

Zero-Downtime Website Migration & Platform Modernization

Migrating to a new server, CMS, or modern WordPress architecture without risking traffic loss requires senior engineering. We guarantee 100% SEO equity preservation, zero downtime, and complete database integrity.

Core Stack: HTML5 / Modern CSS TypeScript React / Vue Tailwind / Vanilla CSS GSAP Motion Webpack / Vite
chadsia.com / services / website-migration
Verified Build
Zero-Downtime Website Migration & Platform Modernization
99 PageSpeed Sub-Second LCP
Senior Engineering 17+ Veteran Craft
Migration Capabilities

Flawless Data & Platform Transitions at Scale

From complex multi-site consolidation to moving from Wix/Shopify/Webflow into modern WordPress, we execute every migration with mathematical precision.

Host & Server Cloud Migrations

Migrate complex websites to high-performance VPS or cloud infrastructure (AWS, DigitalOcean, Cloudways, Kinsta, WP Engine).

  • Zero database corruption
  • Optimized PHP 8.3 & MariaDB configuration
  • SSL certificate & DNS TTL pre-propagation

Cross-CMS to WordPress Modernization

Extract, clean, and import legacy content from Wix, Squarespace, Drupal, Joomla, or Webflow into clean custom WordPress.

  • Automated media library extraction
  • Custom post type & taxonomy mapping
  • Zero loss of historical author & date data

Comprehensive 301 Redirect Architecture

Pre-crawl legacy URLs, map every inbound link to its new destination, and verify zero 404 crawl errors post-cutover.

  • 1-to-1 canonical redirect mapping
  • Regex wildcard redirects for complex hierarchies
  • Server-level Nginx / Apache redirect execution

Database Sanitization & Cleanup

Scrub legacy plugin tables, remove orphaned postmeta records, and optimize database indexes for maximum performance.

  • Eliminate thousands of junk rows
  • Fix serialized string encoding errors
  • Reduce database disk footprint by up to 70%

DNS, MX Records & Email Deliverability

Flawless DNS transition with zero email disruption, verified SPF, DKIM, DMARC authentication, and zero dropped customer inquiries.

  • Zero-Downtime DNS & TTL Propagation
  • SPF, DKIM & DMARC Authentication
  • Google Workspace / Microsoft 365 Continuity
  • SSL Certificate Edge Provisioning

Post-Migration Health & Rollback Safety Net

Complete pre-migration staging clones, automated database snapshots, and post-launch crawl audits to guarantee 100% platform stability.

  • Instant Rollback Snapshot Safeguard
  • Automated Post-Launch Broken Link Crawl
  • Form & Transaction Verification
  • 30-Day Dedicated Migration Warranty
The Engineering Standard

Why Trust a Senior Developer with Your Migration

100% SEO Safe

Zero SEO Equity Loss

We protect your hard-earned Google rankings by preserving URL paths, title tags, heading hierarchies, and structured schema.

100% Reversible

Automated Rollback Safeguards

Full snapshot backups and parallel staging environments ensure zero risk to your live operations during transition.

WP-CLI Verified

Safe Serialized Data Search & Replace

We use WP-CLI native search-replace routines to prevent corrupted PHP serialized arrays in themes and widgets.

Zero Email Disruption

Email & DNS Security Continuity

Ensure MX records, SPF, DKIM, and DMARC email authentication records remain untouched and fully operational.

Migration Case Studies

Seamless Complex Migrations in Production

Defensible Legal Platform & Design System
Enterprise LegalTech 0.4s FCP · 99 PageSpeed

Defensible Legal Platform & Design System

Architected a bespoke corporate web platform and modular design token library with sub-second critical path rendering and enterprise accessibility.

Semantic HTML5 Vanilla CSS Tokens TypeScript 99 PageSpeed
Atlas App Interactive Client Portal & SaaS UI
SaaS & Mobile Web App +142% Onboarding Completion

Atlas App Interactive Client Portal & SaaS UI

Engineered an ultra-responsive client console and interactive application workflow with zero-bloat state management and real-time data visualizers.

Interactive UI Modern JS Responsive Web Custom API
Casa Halo High-Aesthetic Digital Experience
Luxury Real Estate Sub-Second Visual LCP

Casa Halo High-Aesthetic Digital Experience

Designed a cinematic, fluid-scrolling editorial front-end with hardware-accelerated micro-animations, rich typography, and frictionless direct booking inquiries.

GSAP Motion Modern CSS Grid WebP Assets Luxury UX
BluSonil Direct-to-Consumer Conversion Store
HealthTech & DTC +88% Checkout Velocity

BluSonil Direct-to-Consumer Conversion Store

Engineered a bespoke, frictionless checkout architecture and modular product showcase optimized for instant mobile commerce and sub-second load times.

WooCommerce Headless Sub-second LCP Conversion UX
GypsyJazz Digital Media & Learning Hub
Media & Community Platform 100% Core Web Vitals Pass

GypsyJazz Digital Media & Learning Hub

Built a media-rich front-end architecture with custom video player integration, interactive community feeds, and instant search indexing.

Custom WordPress Fast Media Pipeline A11y AA Pass
CRA Apartments Multi-Family Property Hub
Commercial Real Estate +165% Organic Lead Capture

CRA Apartments Multi-Family Property Hub

Transformed a multi-property portfolio into a high-performance leasing hub with interactive unit filtering, floorplan viewers, and instant tour booking.

Interactive Maps Sub-second Filter Lead Funnels
Migration Protocol

Our 4-Step Zero-Downtime Migration Framework

01

Discovery, Pre-Crawl & URL Inventory

We crawl your entire live website, catalog all active URLs, assets, database size, and DNS record dependencies.

  • Comprehensive URL & Asset Inventory
  • DNS & Migration Timeline Schedule
02

Staging Environment Setup & Database Sync

We clone your site to an isolated staging server, sanitize database tables, and configure server performance configurations.

  • Isolated Staging Build
  • Database Sanitization Report
03

Delta Data Sync & Comprehensive Testing

We sync all delta changes (new orders, posts, comments), verify all forms, checkout paths, and test 301 redirects.

  • Delta Data Synchronization
  • Cross-Browser & Functional QA Sign-Off
04

DNS Cutover, SSL & Live Verification

We lower DNS TTLs, execute seamless IP cutover, provision SSL, and monitor 404 logs and Google Search Console indexing.

  • Seamless Production Cutover
  • Post-Migration 404 & Search Indexing Audit
Senior DevOps & WordPress Engineer

Direct Engineering from a Migration Specialist

Chad Sia has executed hundreds of mission-critical migrations for enterprise brands and high-volume e-commerce stores. You work directly with a senior engineer who personally manages and executes every step of your migration.

17+
Direct Craft
0%
Middle-Men
100%
Custom Code

"We treat every line of code as an investment in your business speed, security, and conversion metrics."

CS

Chad Sia

Founder & Principal Engineer · Since 2009
Common Inquiries

Frequently Asked Questions

Will our website experience any downtime during the migration?

No. We develop and verify the new environment on a private staging server. When ready, we perform a seamless DNS cutover with pre-lowered TTLs, ensuring visitors and search bots experience zero downtime.

What happens to orders or inquiries submitted during the migration process?

We execute a final delta-sync immediately before DNS cutover to capture any recent orders, customer sign-ups, or form submissions, ensuring zero data loss.

Can you migrate our domain to a new cloud host or VPS?

Yes. We migrate sites to leading cloud providers including DigitalOcean, AWS, Google Cloud, Cloudways, Kinsta, WP Engine, and custom dedicated Linux servers.

How do you verify that all 301 redirects work properly after launch?

We run automated crawler scripts against our 301 redirect map to verify that every single legacy URL returns an HTTP 301 status pointing directly to its corresponding new destination without redirect chains.
Migrate with Confidence

Ready to Migrate Your Website with Zero Downtime?

Book a migration strategy sprint to audit your site architecture and get a guaranteed zero-downtime execution plan.

Book Your Migration Strategy Call