For the third part of the WRAPS series, I looked at the homepages of well-known NGOs focusing on environmental and climate protection. Namely those are 350.org, Bird Life, BUND, ClientEarth, Friends of Earth, Greenpeace, NABU, Robin Wood, WWF and Zero Waste Europe.
The results show that even climate organisations don’t have sustainability on their radar when it comes to web development.
Results
The evaluation is again based on five criteria. The criteria and their weighting is explained in more detail in a dedicated post. The overall score is calculated as follows:
The results reveal some weaknesses, but there are also positive examples in almost all categories. Greenpeace scores highest in the ranking, with a homepage that loads quickly, uses data relatively sparingly, and also performs comparatively well in terms of privacy.
# | Team | Total | CWV | CO2 | A11y | Privat | Inhalt |
---|---|---|---|---|---|---|---|
1. | Greenpeace | 74.6% | 100% | 70% | 56% | 60% | 100% |
2. | Robin Wood | 72.0% | 100% | 50% | 42% | 93% | 100% |
3. | Zero Waste Europe | 59.8% | 100% | 41% | 45% | 47% | 100% |
4. | Friends of Earth | 53.4% | 94% | 53% | 45% | 0% | 100% |
5. | ClientEarth | 52.9% | 97% | 18% | 41% | 60% | 100% |
6. | BUND | 51.4% | 100% | 31% | 39% | 27% | 100% |
7. | NABU | 50.0% | 100% | 3% | 44% | 67% | 100% |
8. | Bird Life | 39.2% | 82% | 0% | 43% | 40% | 100% |
9. | WWF | 38.4% | 67% | 24% | 41% | 13% | 100% |
10. | 350.org | 25.0% | 40% | 0% | 43% | 20% | 100% |
Performance (CWV)
Seven out of ten homepages score more than 90% of the points in this category. Only one website scores less than 50%. That’s a good result. The homepages are particularly impressive in terms of interactivity, with all homepages achieving a response time (INP) of less than 200 ms in the .75 quantile. When it comes to loading times, many websites are just fast enough to avoid losing points.
Carbon Footprint
Overall, the homepages consume too much data (and with that too much carbon) when first accessed. On the median 4.5 MB of data are sent through the network.
The caching behaviour of the homepages is a positive feature. When reloading, large parts of the assets could be reused in almost all cases, so that on median only 657kB of data are transferred over the network during repeated visits. There is only one outlier where a self-loading video is explicitly excluded from caching. As a result, this website consumes 40MB with every visit.
Accessibility
Unfortunately, there are no high scores to report here. Only one website allows visitors to increase the contrast of the content. Dark mode or other settings for font and colour: none. No homepage offers content in simple language. At least other best practices for accessibility are reasonably well adhered to.
Privacy
Here we have some positive examples of no data being shared with third parties. Robin Wood and NABU do not force you to connect to external servers. Unfortunately, there are also negative examples where unsolicited connections are made to servers belonging to Meta, LinkedIn, Google, and/or Microsoft.
There are also some security vulnerabilities to report. Security headers are often missing, and in some cases outdated libraries are in use.
Content
All of the websites tested are committed to important charitable causes, so I gave them all full marks. However, some attempts to persuade visitors to donate come across as dark patterns and, on closer inspection, could be penalised with point deductions.
Since I’ve given full marks across the board here, I wont go into further detail on this category below.
How the results of the homepages came to pass
More details on the results are summarized in a PDF file. There you can also see how many points were achieved in the subcategories.
Fazit
The results show that even these organizations specialising in sustainability have not yet addressed sustainability on the web. There is still much to be done to raise awareness of this issue.
Greenpeace ultimately prevailed because the site performs well in Core Web Vitals (like some other homepages) and does not show any major weaknesses in the other categories.
On a positive note, the caching behaviour of the websites is good (with one exception), meaning that little data is consumed during repeat visits.
- Brignull, H., Leiser, M., Santos, C., & Doshi, K. (2023, April 25). Deceptive patterns – user interfaces designed to trick you. deceptive.design. Retrieved April 25, 2023, from https://www.deceptive.design/ (last opened: 02.09.2025)
- https://en.wikipedia.org/wiki/Lazy_loading (last opened: 02.09.2025)