0.103 g
cleaner than an estimated 86.3% of pages on the web
- A+
- A
- B
- C
- D
- E
- F
A+ is 0.04 g or less per view, F is more than 0.359 g CO₂e.
The numbers
- 0.136 g CO₂e
- 0.0055 g CO₂e
- unknown
- 632 ms
- 0.014
- 302 ms
At 10,000 views a month this page emits about 12.4 kg CO₂e a year, roughly 51 km in an average petrol car. The estimate assumes 75% new and 25% returning visitors, a measured cache reload ratio of 4%, and world-average grid intensity. How we calculate this
What to fix
apply everything → ~0.065 g/visit, rating A
Reduce JavaScript payloadsave ~0.024 g/visit (211 kB)High impact · moderate effort
6 scripts total 843 kB on the wire (4.19 MB decoded). Bundles this size usually carry a lot of unused code.
Split bundles per route, tree-shake dependencies, and audit with a bundle analyzer or coverage profile. A 25% cut is a conservative target for bundles this size.
- tool-viewer-Cj8Xsjef.js514 kB
- cortexkit-vendor-BMCn-lI0.js324 kB
- loglevel-DocMxhYH.js1.7 kB
- units-BiC1pYt9.js1.5 kB
- landing-preview-CHTwTteE.js1.3 kB
Verify your hosting energyMedium impact · moderate effort
This host has not published renewable energy evidence with the Green Web Foundation, so its energy source is unknown.
Choose a provider listed in the Green Web Directory, or ask your current provider to publish evidence (and a carbon.txt). This cuts the data-center share of every single page view.
- carbon.txtNo carbon.txt found at the site root; publishing one is the lightest first step.
Upgrade compression beyond gzipsave ~0.015 g/visit (132 kB)Advisory · quick fix
882 kB of text ships gzip-compressed; Brotli or Zstandard would cut roughly another 15-20%, and browsers without them fall back to gzip automatically.
Serve precompressed Brotli for static text assets (highest level, compressed at build time) and enable Brotli or zstd for dynamic responses; keep gzip only as the fallback.
- tool-viewer-Cj8Xsjef.js514 kB
- cortexkit-vendor-BMCn-lI0.js324 kB
- ifcortex.com37 kB
- basic-building.metadata.json2.0 kB
- loglevel-DocMxhYH.js1.7 kB
Where the bytes are
- JavaScript843 kB · 6 req
- HTML37 kB · 1 req
- Data (fetch)36 kB · 3 req
Ten heaviest requests
| Resource | Type | Wire size | Cache-Control |
|---|---|---|---|
| ifcortex.com/build/assets/tool-viewer-Cj8Xsjef.js | script | 514 kB | public, max-age=31536000, immutable |
| ifcortex.com/build/assets/cortexkit-vendor-BMCn-lI0.js | script | 324 kB | public, max-age=31536000, immutable |
| ifcortex.com/ | document | 37 kB | max-age=0, must-revalidate, no-cache, no-store, private |
| ifcortex.com/showcase/basic-building.cxb | fetch | 33 kB | n/a |
| ifcortex.com/showcase/basic-building.metadata.json | fetch | 2.0 kB | n/a |
| ifcortex.com/build/assets/loglevel-DocMxhYH.js | script | 1.7 kB | public, max-age=31536000, immutable |
| ifcortex.com/build/assets/units-BiC1pYt9.js | script | 1.5 kB | public, max-age=31536000, immutable |
| ifcortex.com/build/assets/landing-preview-CHTwTteE.js | script | 1.3 kB | public, max-age=31536000, immutable |
| ifcortex.com/samples/samples.json | fetch | 1.1 kB | n/a |
| ifcortex.com/build/assets/preload-helper-I4rgV-VL.js | script | 843 B | public, max-age=31536000, immutable |
Share this report
<a href="https://carbonless.cc/report/ifcortex.com"><img src="https://carbonless.cc/api/badge?url=https%3A%2F%2Fifcortex.com" alt="Carbon rating for this page" width="150" height="30" loading="lazy" /></a>The badge is a lightweight SVG (under 1 kB) served with long-lived caching, so a new scan can take up to a day to show through.