Websites that use less electricity.
Every page view burns power — and the German grid mix is not green. We measure how much CO₂ your site produces per visit, then bring it down to a fraction. Measured in grams, transparent, without greenwashing.
How we measure what we claim.
Numbers for an average bytebrise-built site, calculated with the Sustainable Web Design Model. The industry average sits around 1.8 g CO₂ per visit — we sit at a fraction of that.
Six levers that actually help.
These six levers are part of every optimisation. No promises, just code that gets shipped.
Shrink the images
WebP/AVIF instead of JPG. Responsive srcset. Lazy loading. fetchpriority="high" only for the hero image.
Modernise the videos
AV1 codec saves 95 % compared to H.264. preload="none". Poster fallback when Save-Data is set.
Subset the fonts
Only the characters that are actually used. Self-hosted woff2 instead of a 200 KB Google Fonts round-trip.
Carbon-aware loading
Visitors who signal Save-Data or slow connections get the light asset. No video, just a poster.
Green hosting
Cloudflare CDN plus edge workers for static sites. R2 storage. No always-on server in a brown-power datacentre.
Lighthouse gate
Before every deploy: performance ≥ 90, or no push. A measurement instead of a vague promise.
Three packages, no fine print.
Carbon audit
Full-site analysis of every page, PDF report with grams per visit and concrete recommendations. From 290 € one-off, delivered in 5 working days.
Optimisation
We implement the audit recommendations: images, video codecs, font subsets, lazy loading. Project price from 1,490 €, depending on scope.
CSRD reporting
Quarterly reports for the EU CSRD obligation from 2026 onwards. Methodology documentation included, audit-ready PDF. Recurring from 190 € / month.
How much CO₂ does your site burn?
Enter your URL. We measure the main page and the top assets, estimate the footprint in grams of CO₂ per visit and give you five concrete recommendations. No sign-up, no email, no tracking.
Open the audit toolLet's talk.
Write to us or call. No sales funnel, no autoresponder.