The Carbon Cost of Bad Code: The Web's Greenest Architectures Are Its Least Adopted
We mapped the technology stack of LLMSE's 3.4-million-site index and applied published carbon models to it. WordPress powers 31.6% of the index; static site generators — the lightest-weight, lowest-emission architecture in the models — power just 1.7% combined, roughly 19 WordPress sites for every static-generator site. Apache leads the server layer at 29.2% (not Cloudflare). Every CO2e figure here is a modeled estimate drawn from the Sustainable Web Design Model v4, the IEA, and HTTP Archive — and across every layer of the stack, the lighter, greener option is the one almost no one chooses.