Supercool Sessions #15 – How to make your website more sustainable
This Supercool Session was recorded live on 24 September 2025
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Supercool's Strategy Director, Kate Mroczkowski and Chief Executive of Digital Carbon Online, Scott Stonham discuss website carbon footprints in the cultural sector.
We know that web pages have a carbon footprint. And that arts and cultural organisations – and your audiences – care about sustainability. But without a benchmark to assess the carbon footprint of cultural websites, it’s hard to know if and how we can reduce our negative impact.
So, early in 2025 – in collaboration with Digital Carbon Online – we measured the carbon footprints of 66 cultural websites. Tracking nearly 9 million page visits over 3 months, we’ve collated and analysed the data, and the first ever Cultural Website Sustainability Benchmark Report the result of that work.
In this session, we present findings from the study, explain you how you can measure your website, and share straightforward strategies to help you to reduce your website’s carbon footprint.
Great for:
- Marketing / Audience Development Officers and Managers
- Digital Marketing teams
- Anyone who works on your organisation’s website
You’ll learn:
- Sector-specific findings about website carbon footprints
- Practical strategies and actions to reduce the carbon footprint of your website
- Direction on where to focus your energy when it comes to reducing the carbon footprint of your website
FYI: This is a repeat of our session delivered at the AMA Conference, July 2025.
Resources and further reading:
Download the Cultural Website Sustainability Benchmark Report in full – for FREE!
Get a FREE carbon footprint report on your website, from Digital Carbon Online
Indigo's Act Green Report 2024
Supercool Session #3 – Content Strategy with Georgina Brook
Website Carbon – the original website carbon calculator
Theatre Green Book's Digital Management Toolkit
Supercool + Sustainability – resources to help you better understand and take action on digital sustainability
During the webinar we had a question from the audience about AI in terms of sustainability. This article includes some helpful considerations about when – and when not – to rely on AI: If AI is burning the planet, should you be using it?