
Choosing a search engine is one of the most immediate decisions that affects your digital carbon footprint. Ecosia plants trees with its ad revenue and runs its infrastructure on renewable energy, while DuckDuckGo emphasizes privacy and uses Microsoft Bing’s index with a leaner ad model. But which one actually moves less data per query and consumes less energy end to end? In this review, I compared page weight, number of network requests, and loading speed across fifty typical searches on both platforms. Ecosia’s results pages tend to be slightly heavier due to tree-planting counters and additional UI elements, while DuckDuckGo returns marginally lighter pages overall. Neither is a clear winner on every metric, but both are dramatically better than mainstream ad-saturated alternatives. Read through the full breakdown below, share your own measurements, and help us build a community-maintained ranking of search engines by real energy efficiency.