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Carbonless
Measure and reduce your website carbon
Scan any page with a real browser, see what it costs the planet per visit, and get a list of what to fix ordered by how much each change saves.
I built Carbonless because I could not tell how much of any website carbon number was measurement and how much was assumption.
So this one measures. A real browser loads your page twice: once cold, once with a warm cache, recording every request on the wire. Repeat-visit weight comes from the actual reload, not a constant. Findings name the specific files worth fixing and what each change saves. When a site serves the crawler a bot wall, the scan fails with that reason. No rating gets published for a page nobody actually sees.
For teams there is a JSON API and a GitHub Action that fails your PR when the preview deployment crosses a carbon or page-weight budget.
The measurement approach started as a peer-reviewed IEEE conference paper (https://ieeexplore.ieee.org/document/10223952). The prototype stayed an MVP for a while; this beta is a ground-up rewrite of it.
Everything is free while in beta. The methodology page lists every assumption, and Carbonless measured its own site: 0.028 g per visit, rated A+.
I'll be happy to hear your suggestions :)
About Carbonless on Product Hunt
“Measure and reduce your website carbon”
Carbonless was submitted on Product Hunt and earned 7 upvotes and 1 comments, placing #41 on the daily leaderboard. Scan any page with a real browser, see what it costs the planet per visit, and get a list of what to fix ordered by how much each change saves.
On the analytics side, Carbonless competes within Developer Tools, Climate Tech and Web Design — topics that collectively have 539.6k followers on Product Hunt. The dashboard above tracks how Carbonless performed against the three products that launched closest to it on the same day.
Who hunted Carbonless?
Carbonless was hunted by Sait Furkan Teke. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Carbonless including community comment highlights and product details, visit the product overview.
Sait Furkan Teke
Hi Product Hunt,
I built Carbonless because I could not tell how much of any website carbon number was measurement and how much was assumption.
So this one measures. A real browser loads your page twice: once cold, once with a warm cache, recording every request on the wire. Repeat-visit weight comes from the actual reload, not a constant. Findings name the specific files worth fixing and what each change saves. When a site serves the crawler a bot wall, the scan fails with that reason. No rating gets published for a page nobody actually sees.
For teams there is a JSON API and a GitHub Action that fails your PR when the preview deployment crosses a carbon or page-weight budget.
The measurement approach started as a peer-reviewed IEEE conference paper (https://ieeexplore.ieee.org/document/10223952). The prototype stayed an MVP for a while; this beta is a ground-up rewrite of it.
Everything is free while in beta. The methodology page lists every assumption, and Carbonless measured its own site: 0.028 g per visit, rated A+.
I'll be happy to hear your suggestions :)