0.279 g
cleaner than an estimated 59.9% 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
- 0.323 g CO₂e
- 0.144 g CO₂e
- unknown
- 556 ms
- 0.56
- 185 ms
At 10,000 views a month this page emits about 33.4 kg CO₂e a year, roughly 137 km in an average petrol car. The estimate assumes 75% new and 25% returning visitors, a measured cache reload ratio of 45%, and world-average grid intensity. How we calculate this
What to fix
apply everything → ~0.128 g/visit, rating B
Audit third-party servicessave ~0.077 g/visit (600 kB)High impact · moderate effort
8 third-party domains account for 1.20 MB (55% of the page).
Remove services that no longer earn their place; load the rest on interaction (facades for embeds, delayed consent-gated tags). Each third party is also a privacy and performance dependency.
- g.alicdn.com847 kB
- img.alicdn.com208 kB
- at.alicdn.com70 kB
- d.alicdn.com63 kB
- o.alicdn.com10 kB
- fourier.taobao.com1.1 kB
Reduce JavaScript payloadsave ~0.025 g/visit (193 kB)High impact · moderate effort
32 scripts total 770 kB on the wire (2.48 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.
- et_f.js112 kB
- 2766.js105 kB
- b3cb5cc6.js78 kB
- framework.js66 kB
- 5146.js59 kB
Lazy-load below-the-fold mediasave ~0.013 g/visit (102 kB)Medium impact · quick fix
17 below-the-fold images/iframes (204 kB) download immediately for every visitor.
Add loading="lazy" to below-fold img and iframe elements (and keep it off the LCP image). Browsers then fetch them only when scrolling approaches.
- O1CN01KF6GA11qHlxh1xDEr_!!6000000005471-2-tps…52 kB
- O1CN01DG7AhY1iKxrQybqcA_!!6000000004395-2-tps…28 kB
- O1CN014Kc0IE1awxnNicCWm_!!6000000003395-2-tps…24 kB
- O1CN01nxZmSz1KIAbU3JDNG_!!6000000001140-2-tps…15 kB
- O1CN01UiXfx21CXGjbMXAFt_!!6000000000090-2-tps…14 kB
Serve images at the size they displayMedium impact · quick fix
15 images are encoded at more than twice the pixels the layout shows, even accounting for this viewport's pixel density.
Generate multiple sizes and let the browser pick with srcset/sizes; a 4000px original behind a 400px slot spends bandwidth no screen displays.
- O1CN01KF6GA11qHlxh1xDEr_!!6000000005471-2-tps…52 kB
- O1CN01KF6GA11qHlxh1xDEr_!!6000000005471-2-tps…52 kB
- O1CN01DG7AhY1iKxrQybqcA_!!6000000004395-2-tps…28 kB
- O1CN01DG7AhY1iKxrQybqcA_!!6000000004395-2-tps…28 kB
- O1CN014Kc0IE1awxnNicCWm_!!6000000003395-2-tps…24 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 ~0.036 g/visit (286 kB)Advisory · quick fix
1.91 MB 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.
- retrieval941 kB
- et_f.js112 kB
- 2766.js105 kB
- 2766.css78 kB
- b3cb5cc6.js78 kB
Set a page-weight budgetAdvisory · moderate effort
At 2.18 MB per view this page rates E. The findings above list where the weight is.
Agree a transfer budget (e.g. under 975 kB reaches a B), enforce it in CI, and re-scan after each change to hold the line.
Where the bytes are
- Data (XHR)945 kB · 6 req
- JavaScript770 kB · 32 req
- Images208 kB · 22 req
- CSS101 kB · 7 req
- Fonts64 kB · 2 req
- Data (fetch)64 kB · 2 req
- HTML28 kB · 1 req
- Other2.0 kB · 3 req
Ten heaviest requests
| Resource | Type | Wire size | Cache-Control |
|---|---|---|---|
| qwen.ai/api/v2/article/retrieval?type=qwen_ai&language=en-US | xhr | 941 kB | n/a |
| g.alicdn.com/AWSC/et/1.83.41/et_f.js | script | 112 kB | max-age=336069, s-maxage=86400 |
| g.alicdn.com/qwenweb/qwen-ai-fe/0.0.78/js/2766.js | script | 105 kB | max-age=1710918, s-maxage=86400 |
| g.alicdn.com/qwenweb/qwen-ai-fe/0.0.78/css/2766.css | stylesheet | 78 kB | max-age=1710918, s-maxage=86400 |
| g.alicdn.com/qwenweb/qwen-ai-fe/0.0.78/js/b3cb5cc6.js | script | 78 kB | max-age=1710918, s-maxage=86400 |
| g.alicdn.com/qwenweb/qwen-ai-fe/0.0.78/js/framework.js | script | 66 kB | max-age=1710918, s-maxage=86400 |
| d.alicdn.com/alilog/??aplus/1.13.29/aplus_pc.js,aplus/1.13.29/plugin/aplus_spmact.js?v=20260728193427 | fetch | 63 kB | max-age=60,s-maxage=60, max-age=1800,s-maxage=1800 |
| g.alicdn.com/qwenweb/qwen-ai-fe/0.0.78/js/5146.js | script | 59 kB | max-age=1710918, s-maxage=86400 |
| at.alicdn.com/t/a/font_4808287_y5yts1vlc7q.woff2?t=1764668650182 | font | 58 kB | max-age=63072000 |
| img.alicdn.com/imgextra/i2/O1CN01KF6GA11qHlxh1xDEr_!!6000000005471-2-tps-1398-1011.png | image | 52 kB | max-age=31536000 |
Share this report
<a href="https://carbonless.cc/report/qwen.ai/home"><img src="https://carbonless.cc/api/badge?url=https%3A%2F%2Fqwen.ai%2Fhome" 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.