Fifteen live websites across fifteen different industries, one consistent result: every site in this portfolio outperforms real-world competitors costing tens of thousands of pounds more.
All 40 websites ranked by their total Lighthouse score out of 400. Chiltern Computers sites are highlighted.
Chiltern Computers average: 393/400. Competitor average: 293/400. That's a 100-point gap. To put this in perspective, the average competitor loses over a quarter of their possible score. Chiltern Computers loses just 1.75%.
Six premium demos built to dominate local trade search — benchmarked the same way. The scores below are mobile Lighthouse (the tougher test), and all six rank among the portfolio in the ranking above. Local rivals sit on dated Wix/template sites — or have no website at all.
A premium, heritage-influenced painter & decorator brand. A drag-to-compare before/after slider, a photography-led project gallery as the centrepiece, a Dulux Select badge with full accreditation row (PDA, TrustMark, Which?), a free colour-consultation funnel and per-town local-SEO pages — the craft and colour expertise local decorators never show. 23 pages.
Gas Safe boiler installs, repairs and servicing across Havering. Clickable Gas Safe badge, 0% finance section, 24/7 emergency call-out, individual service pages and per-town local-SEO pages — the finance, reviews and emergency signals local plumbers bury. 23 pages.
A premium, photography-led garden & driveway specialist. A big before/after project gallery as the centrepiece, Marshalls Register & Brett Approved badges, a repeated "Free Design & Quote" CTA and per-town pages — the visual portfolio and accreditation every local landscaper is missing. 24 pages.
A premium roofing brand built to out-credential every local competitor. Interactive before/after slider, a full accreditation badge row (NFRC, CompetentRoofer, TrustMark, Which?), a named 15-year insurance-backed guarantee, a free roof-survey funnel and per-town pages. 24 pages.
A premium barbershop & men's grooming brand built to fill every chair. A repeated "Book Appointment" CTA wired to online booking, a photography-led gallery of cuts and fades, six named master-barber profiles, a clear price list with student & OAP rates, on-page 5-star reviews, walk-ins welcome and per-town pages — the booking and trust signals most local barbers never show. 25 pages.
A sharp, modern electrician brand for domestic and commercial work. NICEIC / NAPIT badges with registration numbers, dedicated pages for EV chargers, EICRs, rewires and fuse-board upgrades, on-page reviews, a sticky click-to-call / WhatsApp bar and per-town pages. 25 pages.
The websites we tested aren’t amateur efforts. These are professional sites built by agencies and in-house teams with substantial budgets.
Built with Next.js + Sanity CMS + Shopify integration + Klaviyo email marketing. A site like this would typically cost £75,000–125,000 from a digital agency. It scores 288/400.
Built on Sitecore CMS (enterprise licence alone: £50,000+/year) with custom Next.js frontend. Total build likely £150,000–300,000+. It scores 310/400.
Full e-commerce spa booking platform with multiple locations. A build of this scale would typically run £80,000–150,000. It scores 257/400 — and has a layout shift so bad the page visibly rearranges itself on every load.
The highest-scoring competitor at 361/400. Custom platform serving 500+ locations. Estimated £200,000–500,000+ build. Despite this investment, they still don’t achieve 100 in Accessibility (91) or Performance (70).
Websites costing £75,000 to £500,000 are scoring 236–361 out of 400. Chiltern Computers sites score 379–398. The difference isn’t budget — it’s approach. We build lean, modern, purpose-built sites that prioritise what actually matters: speed, accessibility, security, and search visibility. No bloat. No shortcuts.
A summary of what these results mean in the context of the wider web industry.
Across eleven industries — fitness, legal, hospitality, wellness, construction, roofing, electrical, plumbing, landscaping, decorating and barbering — Chiltern Computers’s portfolio outperforms every competitor tested. Not by a small margin, but by an average of 102 points out of 400. The six newest trade demos carry the same standard into local trades — scoring 396–399 against rivals stuck on dated templates, or with no website at all. We achieve perfect scores in Accessibility, Best Practices, and SEO on every page of every site, combined with desktop performance averaging 99+ and mobile averaging ~98. These results place Chiltern Computers firmly in the top 1% of web quality worldwide, regardless of industry or competitor budget.
All scores in this report are real, measured using Google Lighthouse 12.x on 12 May 2026 under identical conditions (mobile emulation: Moto G Power, 4x CPU throttling, simulated slow 4G). Each value can be independently reproduced by anyone running PageSpeed Insights against the same URL. No scores have been estimated or fabricated. The six trade demos were added and measured under the same conditions on 27–28 June 2026.