Technical SEO · Core Web Vitals · Performance · Schema

Technical SEO engineering for high-performance apps

Stop losing organic traffic to slow load times and crawl errors. We provide code-level performance optimization, Core Web Vitals remediation, headless CMS migrations, and automated schema pipelines built for modern search engines. Speed and crawlability delivered by systems engineers, not digital marketers.

Get free performance assessment → View case studies

RG INSYS LLP provides code-level performance optimization and technical SEO engineering to maximize organic search rankings and page speeds. We specialize in Core Web Vitals remediation, headless CMS implementations (Next.js, Remix, Astro), automated structured JSON-LD schema pipelines, edge CDN caching rules, automated crawlability regression tests in CI/CD, and dynamic XML sitemap syndication via GSC and IndexNow APIs. From SaaS platforms to e-commerce, we turn dynamic websites into high-speed search engines magnets.

What we deliver: Lighthouse audit, Core Web Vitals fixes (LCP, CLS, INP), SSR/ISR migrations, headless CMS setups, automated structured microdata injection, programmatic IndexNow/Google indexing, and sitemap syndication.
Typical timeline: 1 week for a deep technical SEO audit. 2 to 4 weeks for full speed, metadata, and crawl optimization implementations.
Pricing from: $2,500 fixed price for a Technical SEO Performance & Crawlability Audit. Greenfield setups and CMS migrations start at $8,000.
Stack: Next.js, Remix, Astro, headless CMS (Medusa, Contentful, Strapi), Lighthouse, Google Search Console, Google Analytics, IndexNow API, Cloudflare Workers, AWS Lambda@Edge, Playwright.
Compliance-ready for: W3C standards, WCAG Accessibility, Schema.org vocabulary, Core Web Vitals standards, and Google Search Essentials guidelines.

What's included

Search optimization built at the source-code level

⚡

Core Web Vitals Remediation

In-depth profiling and remediation of Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP). We eliminate render-blocking JS, optimize layout shifts, and hit 90+ mobile PageSpeed scores.

🏗️

Headless CMS & SSR Migration

Migrate traditional marketing frontends or slow monoliths to server-side rendered (SSR) or statically generated (SSG/ISR) modern frameworks like Next.js or Astro. Instant page loads, maximum crawl budget efficiency, and clean CMS workflows.

🏷️

Dynamic Schema Pipelines

Custom middleware that automatically generates and injects rich JSON-LD structured data (Product, Organization, Article, FAQ, Breadcrumbs) based on dynamic database records, giving your brand maximum rich-snippet real estate.

🌐

Edge Delivery & CDNs

Deploying localized server-side rendering, HTML generation, and custom caching rules using Cloudflare Workers or AWS Lambda@Edge. Deliver pages dynamically under 200ms round-trip to search spiders worldwide.

🤖

Automated Crawlability Audits

Integrating custom Playwright sitemap crawler scripts in your GitHub Actions CI/CD pipelines. Automatically catches broken links, visual layout shifts, and missing meta tags or canonical links before they merge.

📈

API Indexing Pipelines

Programmatic integration with Google Search Console API and the IndexNow protocol. Automatically triggers instant search-engine crawling and re-indexing the moment your content updates, completely bypassing standard weekly crawl delays.

Our method

How a Technical SEO optimization unfolds

Auditing & Audit logs, week 1

Audit Lighthouse scores, Lighthouse metrics, database query bottlenecks, rendering bottlenecks, crawl budget logs, and GSC indexing charts. Output: a prioritized technical code-fix backlog.

Remediation & Build, weeks 2-3

Refactor slow rendering components, implement Next.js ISR/SSR caching, resolve layout shifts, codify dynamic JSON-LD structured schemas, and optimize core JS assets.

Indexing & APIs, week 4

Configure dynamic XML sitemaps, programmatically wire IndexNow webhooks, map Google Search Console APIs for automated indexing, and set up Cloudflare Workers edge rules.

Handover & Testing

Set up CI/CD regression tests in GitHub Actions to prevent future speed and metadata regressions. Hand over structured sitemaps and documentation with 30 days of warranty support.

Our tech stack for Technical SEO

We leverage modern frontend frameworks and edge technologies that render instantly and expose structured data natively. We use robust programmatic APIs and edge caches to deliver dynamic data efficiently without overloading your source databases.

Next.js 14/15 Remix Astro Headless CMS (Medusa / Contentful / Strapi) Lighthouse Google Search Console API IndexNow API Cloudflare Workers AWS Lambda@Edge Playwright Prisma ORM PostgreSQL Redis

Proof

A representative case study

SaaS · UK High-Traffic B2B Directory Platform

Headless Next.js migration: taking 200,000+ pages from 14s load times to under 1s

A UK directory portal with 200,000+ listings was suffering from massive crawl budget waste due to a slow legacy PHP backend. Spiders took up to 14 seconds to load dynamic database paths. We migrated the frontend to Next.js using Incremental Static Regeneration (ISR), automated custom JSON-LD schema pipelines, and automated IndexNow syndication. Mobile PageSpeed scores jumped from 18 to 92. Crawl budget consumption dropped by 65%, resulting in a 40% organic traffic increase inside 8 weeks.

92Mobile Lighthouse Score

<0.8sPage Load Time

+40%Organic Traffic Increase

65%Crawl Budget Savings

Read related case study →

Pricing

Transparent pricing for SEO Engineering

From $2,500 fixed price

Detailed Technical SEO Performance & Crawlability Audits start at $2,500. Code implementations, speed fixes, dynamic schemas, and headless migrations start at $8,000.

Detailed code, rendering, database, and crawl-budget audits
Comprehensive Core Web Vitals remediation (LCP, CLS, INP)
Automated JSON-LD schemas and automated sitemaps syndication
Custom Playwright regression suites built for your CI/CD pipelines

Full pricing & engagement models →

All pricing transparent. No hidden fees. Free 48-hour written estimate.

FAQ

Common questions

What is the difference between this and typical marketing SEO?

Marketing SEO agencies focus on keyword research, copywriting, and link-building retainers. We focus purely on code, databases, rendering architecture, and crawl efficiency. We do not write blog posts; instead, we build the lightning-fast, highly optimized engines that host them and ensure search engines crawl them perfectly.

What are Core Web Vitals and why are they critical?

Core Web Vitals are three user experience metrics Google uses as direct ranking signals: Largest Contentful Paint (loading speed), Cumulative Layout Shift (visual stability), and Interaction to Next Paint (interactivity). Slow loading speeds and shift behaviors actively drag your search rankings down and lower conversion rates.

How do you achieve sub-second page load times?

We implement modern rendering patterns like Static Site Generation (SSG), Incremental Static Regeneration (ISR), aggressive edge caching with Cloudflare Workers or AWS Lambda@Edge, code splitting, optimized image pipelines, and the removal of heavy render-blocking JavaScript bundles.

Do you work with existing WordPress or Magento setups?

Yes. We can refactor and optimize your existing monolith codebase, or build a decoupled headless frontend using React/Next.js that communicates with your WordPress/Magento backend via REST or GraphQL APIs, giving you modern speed with your existing admin flow.

How does the audit process work?

Our 1-week Technical SEO Audit provides an in-depth code, database, and pipeline review. We analyze Lighthouse scores, database bottlenecks, dynamic rendering behaviors, crawl logs, indexation bottlenecks, and structured schema errors. We deliver a clear prioritization document with actionable code fixes.