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Legacy Infrastructure Modernization & Web Vitals Optimization

Migrating an aging PHP/WordPress monolith to Next.js App Router with 99/100 Core Web Vitals and zero SEO loss.

Enterprise B2B ConsultingSprint Duration: 6 Weeks100% Verified Scope
Next.js 15TypeScriptTailwind CSSCloudflareVercel Edge
Audited Performance Benchmark

99/100

PageSpeed Mobile

0.7s

LCP Speed

100%

SEO Backlinks Kept

The Friction & Bottleneck

The Engineering Challenge

An enterprise service portal was suffering from 4.8s mobile LCP load times, failing Google Core Web Vitals audits, and experiencing high security vulnerability alerts on WordPress plugins.

Solvantis Architecture

Our Engineered Solution

We executed an atomic migration to Next.js App Router with Server Components, self-hosted fonts, next/image optimization, and Cloudflare edge caching while preserving 1,200+ legacy URL backlinks.

Verified Qualitative Outcomes

Replaced monolithic server templates with server-rendered React 19 components.
Preserved 100% historical backlink structure using a 1:1 mapped redirect strategy during domain migration.
Reduced main-thread blocking time through AVIF image pipelines and self-hosted fonts.
Technical Output

Technical Deliverables & Code Assets Handed Over

01

Next.js App Router Architecture

100% IP Transferred
02

301 Redirect Mapping Matrix

100% IP Transferred
03

JSON-LD Structured Data Injections

100% IP Transferred
04

Cloudflare Turnstile Security

100% IP Transferred
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