Core Web Vitals & Performance Optimization
Core Web Vitals & Performance Optimization
Audit and fix Core Web Vitals, page speed, caching, CDN and conversion flow. Turn your existing site into a Lighthouse 95+ experience that ranks and converts.
- $1,500
- Starting From
- 1–8 weeks
- Typical Timeline
- 40+
- Projects Shipped
- 98%
- On-time Delivery
What you get
Built for outcomes, not output
Lighthouse 95+ guaranteed
We target 95+ across Performance, SEO, Accessibility and Best Practices. Faster sites rank higher, convert better and lower ad costs.
Core Web Vitals
Largest Contentful Paint (LCP) < 2.5s. First Input Delay (INP) < 200ms. Cumulative Layout Shift (CLS) < 0.1. We measure, fix and monitor.
Real-user monitoring
We set up real-user monitoring (RUM) so you see performance metrics from your actual visitors — not just synthetic Lighthouse tests.
Conversion-rate lift
Every 100ms improvement in load time correlates with 1–3% conversion lift. We tie performance work directly to revenue impact.
Platform-agnostic
We work with Next.js, React, Shopify, WordPress, Webflow, custom codebases. We meet your stack where it is.
No re-platforming required
We optimize what you have. No need to rebuild on a new stack. If a re-platform is the right answer, we'll say so.
Process
How a performance project moves
- 01
Performance audit
Lighthouse, WebPageTest, CrUX, RUM data. We identify the top 5–10 bottlenecks and quantify the revenue impact of each.
- 02
Prioritization & roadmap
Quick wins (1–2 weeks) vs. strategic fixes (4–8 weeks). We give you a ranked roadmap with estimated impact and effort.
- 03
Quick wins
Image optimization, font subsetting, third-party script audit, lazy loading, code splitting, caching headers. Ship in the first sprint.
- 04
Strategic fixes
Server-side rendering, image CDN, edge caching, critical CSS, JavaScript bundle analysis, database query optimization.
- 05
Real-user monitoring
Set up RUM (SpeedCurve, Calibre, Vercel Analytics). Define performance budgets. CI/CD checks to prevent regressions.
- 06
Reporting & iteration
Monthly reports with RUM data, conversion correlation, and recommendations. Continuous optimization as the site evolves.
Deliverables
What ships at the end
Every performance engagement includes the following as standard. Nothing is hidden, nothing is upsold.
- Performance audit report (Lighthouse, CrUX, RUM, third-party scripts)
- Prioritized optimization roadmap (quick wins + strategic fixes)
- Image optimization (next-gen formats, responsive sizes, lazy loading)
- Font optimization (subsetting, preloading, font-display)
- Code splitting & bundle optimization
- Server-side rendering / static generation where appropriate
- Caching strategy (browser, CDN, edge)
- Critical CSS extraction
- Third-party script audit and removal
- Real-user monitoring setup (SpeedCurve / Calibre / Vercel)
- Performance budget enforcement in CI/CD
- Monthly performance reports
FAQ
Frequently asked questions
- 01What are Core Web Vitals?
- Core Web Vitals are Google's three official user-experience metrics: Largest Contentful Paint (LCP) — how fast the main content loads; First Input Delay / Interaction to Next Paint (INP) — how fast the page responds to user interaction; Cumulative Layout Shift (CLS) — how visually stable the page is. They are a confirmed Google ranking factor.
- 02How much does performance optimization cost?
- Performance audits start at $1,500. Optimization engagements: $3,000–$15,000 depending on scope. Ongoing monitoring and iteration: $500–$2,000/month.
- 03How long does performance optimization take?
- Quick wins: 1–2 weeks. Strategic fixes: 4–8 weeks. Full engagement with monitoring: 8–12 weeks. We deliver in sprints with measurable improvements at each step.
- 04Do you work with existing sites or only build new ones?
- Both. Most of our performance engagements are existing sites. We work with Next.js, React, Shopify, WordPress, Webflow, custom codebases and legacy stacks. We meet your stack where it is.
- 05Will performance optimization improve my SEO?
- Yes. Page speed and Core Web Vitals are confirmed Google ranking factors. Faster sites also have lower bounce rates, higher engagement, and higher conversion rates. We tie performance work to revenue impact.
- 06Do you guarantee specific scores?
- We guarantee 90+ on Lighthouse Performance, SEO, Accessibility and Best Practices for the pages we optimize. Most engagements achieve 95+ across all four categories. We back it with a written commitment in the contract.
Related Case Studies
How we've shipped performance.
- E-Commerce & DTC
Headless Shopify: 0.6s LCP, 34% conversion lift
Migrated a growing DTC skincare brand from WooCommerce to headless Shopify on Hydrogen. Page speed, conversion rate and LTV all jumped — and ChatGPT now recommends them by name.
Conversion: +34% - SaaS & B2B Software
Marketing site rebuilt for Google AND ChatGPT
Replatformed a B2B SaaS marketing site to Next.js, added Generative Engine Optimization, and built citation-tracking infrastructure. Now cited in ChatGPT and Perplexity for 47 commercial keywords.
Trial signups: +187% - Real Estate & PropTech
IDX real estate platform — 12K active listings
Built a real estate platform with IDX integration, advanced search, broker accounts and a custom CRM. SEO traffic 3.2x in 6 months.
SEO traffic: +220%
Ready to start your performance project?
Tell us about your goals. We reply within 24 hours with a tailored proposal — not a sales pitch. Or book a 30-minute free call to talk it through first.
30-minute free call · no pitch · no obligation