Turtle Labs Studio

Journal · Sustainability

The carbon cost of a heavy website - and what to do about it

Every megabyte you ship is energy someone else has to spend. Lightweight is not just faster - it is more sustainable.

Written by
Turtle Labs
Published
May 19, 2026
Length
7 min read

The average web page has quietly ballooned over the last decade. Most of that weight is invisible to the people who commission it and expensive for the people who load it.

A lighter site loads faster, ranks better and costs less to run - and it also burns less energy across every device that opens it. Sustainability and performance are the same project.

The biggest wins are boring: right-size your images, drop the fonts you are not using, and question every third-party script. Most heavy sites are heavy by accident, not by need.

We build to a payload budget the same way we build to a deadline. When weight is a first-class constraint, the whole product gets sharper.

More from the journal

Want this done rather than described?

The Studio runs it as a project, with a scope and a signature.

Start a project
Brand Strategy Workbook · Free

Before you write to us

The five questions that arrive with every brief, answered.

Ten disciplines, from brand strategy through to packaging and film. Most projects use two or three of them. The services page says what each one involves and, more usefully, when it is not the right one.

See the ten

Projects are quoted per brief, because a name and a full identity are not the same size of job and a number here would be invented. Retainers have a floor and it is published: marketing, creative partner and studio partner.

See the floors

A positioning sprint is weeks. An identity is a couple of months. A website depends almost entirely on how ready the content is, which is the part most people underestimate.

How a project runs

Probably, and the sectors list says where the research is already done. It does not mean we only work in those; it means the first three weeks are faster if you are in one.

See the work

Then do not commission anything yet. Score your brand free on BrandOS, which takes about four minutes and names the gap. If the answer is that you do not need us, it will say so.

Score it free

Not covered here? Ask a person.