Core Web Vitals & Performance Audit
Audit-first diagnosis with measurement and roadmap
This is a diagnostic audit focused on measurement, findings, and a prioritized roadmap. We help startups and growing companies identify slow loading times, poor Core Web Vitals, and performance bottlenecks. For ongoing performance engineering, see Performance SEO.
Why Core Web Vitals Matter
Speed strongly influences conversions, SEO performance, and user satisfaction
Google increasingly evaluates websites based on real user performance signals rather than purely theoretical metrics. If your app scores poorly on:
…this can negatively affect user experience, visibility in search results, and conversion-related outcomes. We address these issues through systematic engineering approaches rather than superficial optimizations.
What We Audit & Optimize
Rendering & Architecture
We analyze how your pages render and load:
- Server-side, static, or client-side rendering issues
- Next.js App Router / Pages Router mismatches
- Layout shifts and hydration problems
- Slow API responses blocking rendering
Performance Metrics
Deep audit of:
- LCP (images, hero sections, server response)
- INP (interaction delays, JS blocking, event handlers)
- CLS (layout shifts from images, fonts, ads, UI components)
- FID, FCP, SI, TTFB
JavaScript & Bundling
We identify and fix:
- Large JS bundles
- Inefficient components
- Heavy libraries
- Unnecessary re-renders
- Missing React memoization
- Misconfigured Next.js caching
Images & Media Optimization
We optimize:
- Hero images
- Unoptimized backgrounds
- Missing width/height
- Missing Next.js Image component
Using the Next.js Image component can contribute to measurable LCP improvements in many setups.
Server & API Performance
We debug backend bottlenecks:
- Slow API routes
- Overloaded endpoints
- Missing caching headers
- Cold starts (serverless)
- Database latency
Caching & CDN Layers
We configure:
- Edge caching
- Static generation
- Revalidation
- CDN headers
- ISR (incremental static regeneration)
Lighthouse & Web Vitals Reporting
You receive:
- Full Lighthouse reports
- Before/after comparison
- Clear explanations — not generic "fix unused JS" text
- Prioritized list of what to fix first
What You Get
Typical Performance Improvements Observed
In many projects, teams observe improvements such as:
And for SEO:
- Improved alignment with performance-related search signals
- Improved conversion performance in many cases
- Reduced bounce rates on optimized pages
- Improved user engagement and retention signals
Who Is This For?
Example Issues We Commonly Fix
Results we're
proud to show
FAQ
How long does a performance audit take?
3–10 days depending on project size.
Can you fix the issues after the audit?
Yes — we can implement all improvements.
Do you work with non-Next.js projects?
Yes, but Next.js is our strongest expertise.
Will this improve our SEO?
Core Web Vitals are one of several factors influencing search rankings.
Performance improvements depend on system architecture, traffic patterns, user devices, and external factors. While Core Web Vitals optimization improves technical foundations and user experience, it does not guarantee specific ranking, traffic, or conversion outcomes.