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SustainabilityThe footprint, on the home page

The smallest thing which does the job.

We build the low-carbon version by default. It is not a service, it is not a line on the invoice, and we do not wait to be asked.

39.6 KB this page0.0056 g CO₂e per view4.57 MB the site, film excluded0.5 MB the page budget

Every figure on this page is measured from the deployed files. The arithmetic is in section 03.

We do not sell this. We build it in.

Every project we deliver leaves in its lighter form. We do not itemize it, we do not put it in the proposal, and we do not charge for it, because the moment it becomes a line on a quote it becomes the first line cut.

Some clients care about this and some do not. It makes no difference to what we build. A client who never once mentions carbon still gets the version which loads faster, holds less, and costs less to run.

This is an easy position to hold, because the environmental case and the quality case point the same way. Less weight is less latency. Fewer dependencies are fewer things which break. A smaller build is a cheaper build to maintain. We have not yet had to choose between the greener option and the better one, and if that day arrives we will say so here.

Three places where the weight is decided.

01 In the product The largest saving is the thing you do not build. We cut scope before we cut kilobytes, and we do it in week one, not at handover. A feature nobody uses still ships, still loads, and still runs on somebody's electricity.
02 In the interface Weight is a design decision, usually taken early by somebody who is not thinking about weight. A video which plays itself. A typeface loaded in six weights to use two. A map embedded to show one address. Each of those has a lighter version which does the same job.
03 In delivery Static where static works. Images sized to the space they occupy. No third-party script unless something on the page depends on it. Then measure the result, publish the number, and let somebody argue with it.

This site is the argument, so here is the receipt.

Formist.studio is 75 pages in three languages. The median page transfers 37.7 KB on a first visit and the heaviest transfers 429.3 KB. Every page carries its own weight and its own carbon figure in the footer, computed from the bytes we actually deployed. Everything we deploy adds up to 9.98 MB, and the film on the Intelligent Core page is 5.4 MB of that, spent only when somebody presses play.

The model is Sustainable Web Design v4, which splits energy into operational and embodied across the data center, the network, and the device in your hand.

Operational · data center, network, device0.194 kWh/GB
Embodied · manufacture and end of life0.106 kWh/GB
Energy per gigabyte transferred0.300 kWh/GB
Global average grid intensity494 g CO₂e/kWh
Carbon per gigabyte transferred148.1 g CO₂e/GB

What we do not deduct. The model allows two discounts which we do not take. We apply no green hosting reduction, because our host does not appear in the Green Web Foundation directory and we will not claim a saving we cannot evidence. We apply no returning visitor cache discount, because it would flatter the figure by assuming you have been here before. What we publish is the high end of the model, not the kind one.

Check it yourself. Put this address into the Website Carbon Calculator, which runs the same version of the same model and does not work for us. Put our domain into the Green Web Check and you will see the result which stops us claiming green hosting.

One worked example. There is a film on the Intelligent Core page. It weighs 5.4 MB, more than ten times the budget of the page it sits on. It does not load. What loads is a still image of 44 kilobytes, and the button prints the weight before you decide to spend it. That is the whole method in one component: do not decide for the visitor, and do not hide the cost.

The honest limits.

The host is not provably green. This site runs on Vercel, which does not appear in the Green Web Foundation directory. That does not mean the electricity is dirty. It means we cannot prove it is clean, so we deduct nothing for it and we keep looking.

Images are still the largest cost. Every photograph and plate here is WebP, checked against the original before it shipped. The next saving is not technical. It is editorial: publishing fewer images, and choosing them better.

The brand typeface is not here yet. This site sets in a system font stack, which costs nothing to load. When our own typeface ships it will cost bytes, and we will publish what it cost.

A figure built from bytes is an estimate. It counts the energy of moving this page to you. It does not count the electricity which made the work, the machines it was made on, or the flights nobody took because the studio is remote. We publish the part we can measure, and we do not dress it up as the whole picture.

If you want this built into your project, you do not have to ask for it. It is already how we work.

Under 0.5 MB · page weight budget WCAG 2.2 AA · both color modes Zero · motion libraries, cookies, and trackers Every page · publishes its own figure

Bring the ambition. Two hours together, free. You leave with a direction whether you hire us or not.