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We held our own website to the standard we set for our clients.

We spend our days helping organisations measure and reduce their environmental impact. So we turned the lens on ourselves and asked the same hard question we ask everyone else: what is our website's footprint — and can we do better?

Why we did this

Sustainability doesn't stop at operations.

Every website has a carbon footprint. Data travels across networks, servers run around the clock, and every visitor's device has to render the page — and all of it draws power. The heavier and slower a site is, the more energy it burns on every single visit.

Our previous website was hosted in a United States data centre on a high-carbon grid, and it carried far more code, script and imagery than it needed. It worked — but it didn't reflect what we stand for.

So we rebuilt it. We partnered with OYNK to redesign and engineer the site from the ground up, and with their flagship tool, EcoPigs, to measure it honestly — not with rough estimates, but with a live, evidence-based scan against the UK's real-time grid.

A+ 97 / 100
22 Page scans (desktop & mobile)
~0.03g CO₂e per visit (A+)
Green hosted & verified
AA WCAG 2.2 — Pass

PEER stands for Performance, Experience, Emissions and Ranking. It measures how fast a site loads, how easy it is to use, how much carbon it produces, and how well search engines can find it. Each area is scored out of 100.

How we scored in each area.

Performance A+
99/ 100

Speed

  • Main content appears in around 270 ms — far under the 2,500 ms "good" mark.
  • Practically zero layout shift while the page loads.
  • The server responds in under a millisecond from the UK.
  • Brotli compression, HTTP/2 and long-life caching all in place.
Experience A+
96/ 100

Accessibility & usability

  • Meets WCAG 2.2 AA — and passes every automated AAA check too.
  • Zero accessibility violations found across all pages.
  • Every link and button works with the keyboard alone, with a clear focus outline.
  • Full screen-reader landmarks, a skip link, and descriptive alt text throughout.
Emissions A+
96/ 100

Carbon

  • Each page view produces around 0.03 g of CO₂e — an A+ rating.
  • Hosted on renewable energy, independently verified by the Green Web Foundation.
  • Measured against the UK's real-time grid — not a global average.
  • Lean pages, most well under half a megabyte.
Ranking A+
95/ 100

SEO & visibility

  • Four types of structured data help search engines show rich results.
  • Clear page titles and descriptions, each within the ideal length.
  • robots.txt and sitemap both present — every page is easy to find.
  • Strong mobile speed and secure HSTS headers throughout.

The same domain, rebuilt.

Here's how the new site compares with our old one, measured like for like.

MeasureBeforeAfter
Hosting & energy USA, not green UK, green-verified
Grid carbon intensity 371 gCO₂/kWh ~50 gCO₂/kWh
Total page transfer 5.35 MB ~0.94 MB
Requests per page 475 42
JavaScript 907 KB 57 KB
Largest paint (load) 1.73 s ~0.47 s
Desktop carbon grade C A+

Now we practise what we preach.

A cleaner, faster website isn't a nice-to-have. It loads quicker, reaches more people, ranks higher and costs the planet less — on every visit, by everyone, forever.

We've proven it on ourselves. The same approach we use to cut emissions in operations, supply chains and energy applies just as squarely to the digital world — and the gains are real and measurable.

That's why we now actively encourage every organisation we work with to hold their own website to the same standard. If you'd like us to look at yours, we'd be glad to.

Live emissions 0.03gCO₂e per visit
A+ Green hosted
Measured live by EcoPigs

This figure is live. It updates with the UK grid every time it's measured — this very page, right now.

The team behind the build and the numbers.

This site was designed and built by OYNK, and measured with their flagship platform, EcoPigs. The numbers are grounded in independent data — the UK's live grid intensity and Green Web Foundation hosting checks.

About this audit.

Audit standard
PEER (Enterprise tier)
Overall score
97 / 100 — A+
Pages scanned
11 pages, desktop & mobile (22 scans)
Method
EcoPigs Digital Carbon v2.0 + axe-core + Puppeteer
Host
Hostinger, Manchester, UK (green hosted)
Accessibility
WCAG 2.2 AA — Pass (0 issues)
Work with Daniel

Let's turn your sustainability ambition into measurable action.

Whether you're starting your carbon journey, preparing for certification, or scaling an existing programme — Green Lark provides the strategy, evidence and credibility to move from ambition to outcome.

  • Two decades of environmental sector experience
  • Chartered Environmentalist (CEnv) · ISEP Member
Daniel Cope, Director of Green Lark Environmental Solutions
Daniel Cope Director, Chartered Environmentalist