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About Website Carbon Calculator
Website Carbon Calculator estimates the carbon footprint of a single web page. You enter the page address and it works out the emissions for each visit, using version 4 of the Sustainable Web Design Model.
It comes from Wholegrain Digital, a London agency that builds sustainable WordPress sites, and is offered free to raise awareness. The site also shows a gallery of efficient pages as examples. It suits designers and developers who want a rough measure of page weight and energy use to compare against.
Strengths
- Simple per-page estimate from a single address
- Based on the published Sustainable Web Design Model
- Examples of efficient sites for comparison
Limitations
- Results are estimates, not measurements
- Tests one page at a time
Details
- Pricing
- FreeFree tool; the developer offers paid consulting separately.
- License
- Proprietary
- Developer
- Wholegrain Digital
- Platforms
- Web
- How it runs
- Web application
- Account
- Not required
- Works offline
- No
- Best suited for
- Web teams wanting a quick estimate of a page's carbon footprint
- Categories
- Website testing
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to Website Carbon Calculator
Compare allSoftware that can replace Website Carbon Calculator for an important use case, and what changes if you switch.
Ecograder
Online checker that reports a website's page weight, performance and estimated emissions.
Ecograder tracks page weight, performance and emissions over time and maps results to W3C Web Sustainability Guidelines, but requires an account and is in open beta.
Similar software
Related functionality, not necessarily a direct replacement.
PageSpeed Insights
Google's free web tool that reports Core Web Vitals and Lighthouse results for any URL.
GTmetrix
An online page speed tester with waterfall charts, Core Web Vitals, scheduled monitoring and alerts.
Yellow Lab Tools
An open-source tool that audits a webpage for performance and front-end code quality issues.
Request Map Generator
A web tool that draws a node map of every request a page makes, including third parties.
WebPageTest
An online website performance tester with waterfall charts, filmstrips, multiple locations and throttled connections.
