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Technical SEO audit for Next.js, React, and Astro

Technical SEO, indexability, GEO readiness, and Core Web Vitals improvements for modern JavaScript websites and applications.

Audit

Indexability, metadata, internal structure, rendering, and performance are reviewed.

Priorities

Findings are ranked by impact and effort rather than delivered as an unstructured list.

Implementation

Selected fixes can be implemented directly in the application.

Technical visibility for modern websites

JavaScript applications often require SEO work close to the code: rendering, metadata, structured data, speed, and crawlable architecture.

Areas covered by an SEO sprint

01

01 - Crawl and index

Technical access to the right pages and signals.

  • Canonical URLs
  • Sitemap and robots
  • Metadata and structured data

02

02 - Performance

Real sources of poor Core Web Vitals are identified.

  • LCP, INP, CLS
  • Images and fonts
  • JavaScript and layout behaviour

03

03 - Improvements

Recommendations can become production changes.

  • Prioritised roadmap
  • Code-level fixes
  • Measurement plan

From diagnosis to improvement

Technical audit

The review identifies blockers to visibility and speed.

  • Rendering
  • Indexation
  • Core Web Vitals

Problems are grouped into actionable work.

  • Impact estimate
  • Quick wins
  • Engineering tasks

Implementation roadmap

Verification

Changes can be checked after deployment.

  • Search Console review
  • Performance measurement
  • Next recommendations

Who benefits from technical SEO

Useful when a website has content and demand, but technical limitations suppress discoverability or performance.

Best for

  • Next.js and React websites
  • SaaS marketing sites
  • Content platforms with traffic goals

Typical outcomes

  • Cleaner indexation
  • Improved page performance
  • Actionable SEO backlog

Articles about SEO and performance

Wszystkie artykuły
Why Next.js is Great for SEO

Maciej Sala

Maciej Sala

Founder StriveLab

FAQ - Questions about SEO and performance

Audit scope and implementation options.

Do you only provide a report?

No. The scope can include direct implementation of selected changes in the codebase.

Do you work on Core Web Vitals?

Yes. LCP, INP, and CLS are reviewed together with their technical causes.

Is this only for Next.js?

No. The audit is useful for modern JavaScript websites and applications generally.

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