0.028 g
cleaner than an estimated 96.5% 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
- 0.037 g CO₂e
- 0.0018 g CO₂e
- verified green
- 272 ms
- n/a
- 56 ms
At 10,000 views a month this page emits about 3.4 kg CO₂e a year, roughly 14 km in an average petrol car. The estimate assumes 75% new and 25% returning visitors, a measured cache reload ratio of 5%, and world-average grid intensity. How we calculate this
What to fix
apply everything → ~0.019 g/visit, rating A+
Reduce JavaScript payloadsave ~0.0054 g/visit (59 kB)Medium impact · moderate effort
15 scripts total 236 kB on the wire (720 kB 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.
- 08ttfj81-47mu.js72 kB
- 0wonam-vii-qp.js44 kB
- 0pvnxyyp0w44j.js30 kB
- 3n1zye05i_-de.js18 kB
- 1vcx4kgxcd8nm.js12 kB
Upgrade compression beyond gzipsave ~0.0036 g/visit (39 kB)Advisory · quick fix
262 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.
- 08ttfj81-47mu.js72 kB
- 0wonam-vii-qp.js44 kB
- 0pvnxyyp0w44j.js30 kB
- 3n1zye05i_-de.js18 kB
- 2fh7ilqlvkwue.css13 kB
Where the bytes are
- JavaScript236 kB · 15 req
- Fonts30 kB · 1 req
- Data (fetch)14 kB · 29 req
- CSS13 kB · 1 req
- HTML9.4 kB · 1 req
Ten heaviest requests
| Resource | Type | Wire size | Cache-Control |
|---|---|---|---|
| carbonless.cc/_next/static/chunks/08ttfj81-47mu.js | script | 72 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/0wonam-vii-qp.js | script | 44 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/0pvnxyyp0w44j.js | script | 30 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/media/caa3a2e1cccd8315-s.p.0wgildi0cnwt9.woff2 | font | 30 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/3n1zye05i_-de.js | script | 18 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/2fh7ilqlvkwue.css | stylesheet | 13 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/1vcx4kgxcd8nm.js | script | 12 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/2myd868wzcu0a.js | script | 11 kB | public, max-age=31536000, immutable |
| carbonless.cc/_next/static/chunks/2bd0kshyj0lz5.js | script | 11 kB | public, max-age=31536000, immutable |
| carbonless.cc/ | document | 9.4 kB | private, no-cache, no-store, max-age=0, must-revalidate |
Trend
| Date | CO₂e |
|---|---|
| 7 Aug 2026 | 0.027 g |
| 8 Aug 2026 | 0.027 g |
| 10 Aug 2026 | 0.028 g |
| 12 Aug 2026 | 0.028 g |
Share this report
<a href="https://carbonless.cc/report/carbonless.cc"><img src="https://carbonless.cc/api/badge?url=https%3A%2F%2Fcarbonless.cc" 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.