WEB DEVELOPMENT

Your Next.js App Ships Slow, Ranks Worse, and You Don't Know Why

If you're a technical founder watching Core Web Vitals tank your organic reach, you need an audit that names the bottleneck -- not another React tutorial.

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WEB DEVELOPMENT AT A GLANCE

Fixed fee
Senior-led

95+LIGHTHOUSE AVG
12+ yrsSENIOR-LED
Fixed feeNO SCOPE CREEP
200+PROJECTS SHIPPED

CLUTCH 5.0 VERIFIED

Overview — 01

We audit Next.js codebases end-to-end, tracing slow Time to First Byte, broken static generation, and crawlability gaps back to their exact source in your config, data-fetching strategy, or third-party script load order. You receive a prioritised, engineer-ready action plan from architects who have shipped production Next.js at scale, not a generic Lighthouse export.

Next.js Consulting

Next.js consulting is a focused technical engagement where senior architects review your application architecture, rendering strategy, and Core Web Vitals instrumentation to identify the specific code and configuration decisions costing you performance and search visibility. It is distinct from general React development support: the scope is diagnosis, prioritisation, and handoff of an actionable remediation plan. Engagements are fixed-price and scoped upfront so you know exactly what you are buying before work begins.

The gap — 02

What is holding your current website back?

Common gaps we find in nearly every audit.

Your Lighthouse scores look acceptable in development but collapse under real user conditions because ISR cache misses, unoptimised image pipelines, or heavy client-side bundles only surface at production traffic levels.

Risk: Every 100ms increase in Largest Contentful Paint measurably reduces conversion rate and compounds organic ranking loss over time as Google's CrUX data reflects real user experience.

Google is not indexing your dynamic routes or is seeing blank shells because your SSR and SSG configuration does not align with how your data layer hydrates components on the client.

Risk: Pages that are not indexed do not rank. Structural crawlability problems cannot be patched with content or link-building; they require architectural correction.

You have already read the Next.js documentation and applied the standard recommendations, but the metrics have not moved because the bottleneck is upstream in your hosting configuration, CDN caching headers, or database query patterns, not in the framework itself.

Risk: Continuing to tune the wrong layer wastes engineering sprint capacity and delays the fix, while competitors with faster pages accumulate the ranking advantage.

Safeguards — 03

How we build this right

Every safeguard, built in from Day 1.

Reproducible Audit Methodology

Every finding is linked to a specific file, route, or configuration value in your codebase. We do not report symptoms; we report causes with reproducible test conditions so your team can verify the fix independently.

No Scope Creep by Design

Engagements are fixed-price with a written scope statement before any access is granted. Additional work is quoted separately, so you are never presented with an invoice larger than the number you approved.

Measurable Acceptance Criteria

The action plan delivered at the end of each engagement includes specific metric targets tied to each recommendation, so you have objective criteria for knowing when the remediation is complete.

Scope — 04

What we build

Purpose-built features for your industry.

Core Web Vitals Bottleneck Analysis

We instrument your production build with field data from CrUX and synthetic traces from WebPageTest, then map LCP, INP, and CLS regressions to the specific render path, component, or resource responsible. You receive a ranked list of fixes sorted by impact-to-effort ratio.

Rendering Strategy Review

We evaluate whether your current mix of SSR, SSG, ISR, and client-side fetching matches your data freshness requirements and traffic patterns, and identify where the mismatch is generating unnecessary server load or stale cache penalties.

SEO Crawlability and Indexability Audit

Using server log analysis and Google Search Console data, we trace which routes are being crawled, which are being skipped, and whether your metadata, canonical tags, and sitemap generation are producing the signals Google needs to index and rank your pages correctly.

Bundle and Dependency Profiling

We run a full Webpack or Turbopack bundle analysis against your production build to identify oversized third-party dependencies, duplicated modules, and missing code-split boundaries that are increasing your JavaScript parse and execution time on real devices.

Process — 05

Our development process

From discovery to launch. Quality at every step.

Scoping Call and Access Setup

1 week

A 45-minute call to establish which routes and metrics are the primary concern, followed by read-only access to your repository, Vercel or hosting dashboard, Google Search Console, and any available RUM data. We agree on the written scope before the clock starts.

Instrumented Audit and Root Cause Analysis

1-2 weeks

We run synthetic and field-data traces, profile your production bundle, crawl your sitemap against server logs, and trace each rendering path through your data layer. Every finding is documented with the exact file location and the condition that triggers the problem.

Prioritised Action Plan Delivery

1 week

You receive a written report that groups findings by severity, maps each to a specific code change or configuration update, and includes estimated implementation time for each item. The report is written for engineers, not executives, so your team can act on it directly without translation.

Handoff Review and Implementation Support

1-2 weeks

A structured handoff session where we walk your engineering team through the findings, answer implementation questions, and clarify any edge cases in the recommendations. Optional follow-on sessions are available if your team wants technical review during the remediation sprint.

Social Animal

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Related resources — 06

Solution Hr Consulting Website Development Solution Migrate Dealeron Dealer Inspire to Nextjs Solution IT Consulting SEO Services Solution Consulting Business Launch UK Solution Nextjs Agency Tel Aviv Solution Magento to Nextjs Auto Parts Ecommerce

Questions — 07

Frequently asked questions

What does a Next.js consulting engagement include?

Here's what a typical engagement actually covers. We dig into your architecture -- routing structure, data fetching patterns, rendering strategy across your route tree. We run a full performance audit using Lighthouse and Core Web Vitals, plus bundle analysis to find what's actually bloating your JS payload. On the SEO side, we check metadata rendering, structured data, sitemap configuration, and hreflang if you're running multiple locales. You get a prioritized action plan at the end -- not a list of 60 vague recommendations, but specific fixes ranked by impact with estimated effort attached. All of it delivered within 5-10 business days.

How is this different from a code review?

A code review catches syntax problems, style inconsistencies, obvious bugs. That's useful. But it's not the same thing. What we're looking at is the system design -- are you on the right rendering strategy for each route? Is your data fetching pattern creating waterfalls that add 800ms to your TTFB? Are your SEO foundations actually solid or just technically present? Pretty straightforward distinction in theory, but in practice most teams don't have someone asking these questions regularly. And honestly, the issues we find are almost always architectural. Not typos. Not missing semicolons. Decisions made six months ago that made sense at the time but are quietly causing problems now.

Can you help us migrate from Pages Router to App Router?

Yes -- and we've done it enough times to have a real process around it. The approach is route-by-route migration, which means your existing Pages Router functionality stays intact while we progressively bring routes over to App Router. Server components, streaming, the new metadata API -- all adopted incrementally rather than in one terrifying big-bang cutover. Zero-downtime migration isn't a nice-to-have, it's just the standard. You stay live throughout, and your team isn't blocked from shipping other work while the migration happens alongside normal development.

Do you offer ongoing consulting or just one-off audits?

Both options are available. One-off audits -- covering architecture, performance, and SEO -- start at £3,000. That's a fixed scope, fixed deliverable, done in under two weeks. Retained consulting runs £2,000-5,000/month depending on scope, and covers ongoing architecture guidance, PR reviews, and performance monitoring. Most clients honestly start with the audit. It scopes the real problems clearly, and a lot of them convert to retained after that because they want someone in their corner long-term. Either way, the audit is a sensible starting point.

What if we need implementation, not just advice?

Social Animal isn't just a consulting shop -- we're a full-service development agency. So when the audit surfaces priorities and you need someone to actually implement the fixes, our engineering team can take that on directly. You don't have to hand a 40-page recommendations doc to your own team and wish them luck. A lot of clients use the consulting engagement as the scoping phase for a larger build project. It's a pretty natural progression -- we find what's broken, we agree on what matters most, and then we build it.

Explore related industries

Need enterprise scale?

200+ employee company? Complex multi-tenant, auction, or multi-location requirement? We have a dedicated enterprise capability track.

View Enterprise Hub

Get started — 09

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