This page holds every figure Agnikii Digital publishes about its own work, from Lighthouse scores to carbon per page view, with the method behind each one.
If you want to check a number you have seen on our site, or quote one, start here. Where a figure is modelled rather than measured, we say so next to it.
Last updated
We last updated this page on 8 October 2026. We took our own site’s figures on 6 October 2026.
Client websites
Performance
An average Lighthouse performance score of 96 across twelve client sites.
Lighthouse is an automated lab test from Google that converts each raw metric value into a metric score from 0 to 100, where 90 to 100 counts as good. Our average is taken from the performance score we recorded for each of twelve client homepages. A lab score is a controlled test, not a reading of how real visitors experience a site.
Carbon per page view
Our websites emit up to 83% less CO₂ than Website Carbon’s published global average of about 0.36g per page view, performing at 0.06g to 0.20g per page view.
Across client websites, we average under 0.1g of CO₂ per page view (modelled), against Website Carbon’s published global average of about 0.36g.
Both figures are modelled from measured page weight using the Sustainable Web Design model. The page weight is measured: it is the data a browser actually transfers to load the homepage. The grams are a model’s estimate built on that weight. The global average we compare against is Website Carbon’s published average of about 0.36g CO₂e per page view (2025).
Carbon saved
10,300kg of CO₂ saved across our client work.
This is a modelled total. Each project’s site is scored before work begins and again after it ends, and the difference is added to the total. Anthony Whitefield maintains the figure and updates it when a project completes.
Our own website
These figures describe agnikii.co.uk, our own site. They are not a client result.
- Our homepage page weight (measured): 475,821 bytes, about 476 KB, across 18 requests.
- Our carbon per page view, no green hosting credited (modelled): 0.07g CO₂e.
- Our carbon per page view, renewable hosting credited (modelled): 0.058g CO₂e.
- Our Lighthouse scores (measured, lab test): performance 91, accessibility 99, best practices 100, SEO 100.
Date: We tested our homepage once, on 6 October 2026.
How we took it: Lighthouse 12.8.2 in headless Chrome, mobile, with simulated throttling. Page weight is Lighthouse’s total byte weight: every request made in that single page load.
How we modelled the grams: we use CO2.js (the @tgwf/co2 package, version 0.19.0) running the Sustainable Web Design model version 4. We use a grid intensity of 494g CO₂e per kWh, the global average built into the package, not a UK figure. Our renewable figure credits our host’s electricity at 50g CO₂e per kWh, as the package does for hosts the Green Web Foundation lists.
Hosting
Green hosting: data centres powered by 100% renewables. Our host is listed as green by the Green Web Foundation, and that listing is the basis for the claim, not an independent audit. We last checked the listing for agnikii.co.uk on 3 October 2026. It covers our own site and the hosting we supply, not client sites hosted elsewhere.
Awards
Four named award wins, each listed with the awarding body, the result, the category and the year.
- Business Elite Awards: Winner, Gloucester’s Leading Web Design Agency, 2025.
- Global Recognition Awards Winner 2025 · Excellence in Sustainable Web Development.
- Global Recognition Awards Winner 2025 · Excellence in Sustainable Web Design.
- SME Awards Winner 2025 · Best Web Design Agency, South West England.
More on each award is on our award-winning web design agency page.
How we measure
Every carbon figure on this page has two halves.
- Page weight is measured. A browser loads the page and records how many bytes it transferred.
- Carbon is modelled. A published model converts those bytes into an estimate of energy use, and then into grams of CO₂e using a grid intensity figure.
Nobody can meter the carbon leaving a single web page, so every website carbon figure, ours included, rests on a model. What makes a figure checkable is naming the model, the version, the grid intensity and the date. Our own site’s figures above carry all four. The client range and the 10,300kg total are modelled with the Sustainable Web Design model; the method behind them is set out in our carbon methodology, and we do not claim more precision than that.
Our audits use the same method on your site. The Website Sustainability Audits page explains what an audit covers, and The Green Performance Method explains how we build for low page weight.
What we don’t claim
- No before-and-after page weight reductions. We did not keep the before-weights for past projects, so we publish no percentage cut in page weight.
- No measured carbon. Page weight is measured; grams of CO₂e are modelled. We label them that way.
- No net zero or carbon neutral badge. There is no agreed definition of either for a business of our size.
- No field data in our Lighthouse figures. Our Lighthouse scores are lab tests. Core Web Vitals reflect the real-world experience of visitors, measured in the field, and our Lighthouse figures are not those.
- No annual totals for a client site without its own traffic. A per-page-view figure only becomes a yearly figure when multiplied by real visit numbers, and we state those when we use them.
- No borrowing between our site and client sites. Our own site’s figures are not presented as client results, and our hosting claim does not cover client sites hosted elsewhere.
See your own figures
Want the same figures for your website? Ask for a free website carbon audit: page weight, modelled carbon per page view and the method behind both.