https://compaq-mtv-progressive-surgeons.trycloudflare.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
85
GRADE
B
FIX
1
REVIEW
2
PASS
4
INFO
1
Checks
84 PASS 2 REVIEW 1 FIX
DTransfer EfficiencyAction45% efficientFIX
Transfer Efficiency
Action45% efficient
45% efficient
Critical::
Transfer efficiency: 45%
An estimated 146 KB (55%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 146 KB of unused JavaScript. This wasted data produces 0.03g of unnecessary CO2 per page view.
Total waste: 146 KB (55% of page weight)
Unused JS 146 KB
0.03g unnecessary CO2 per visit
Actual transfer 265 KB
Theoretical minimum 119 KB
Potential savings 146 KB (0.03g CO2)
See Deep Analysis sections above for specific optimizations.
BWeb Font Weight VariantsNo detectable Google Fonts weightsREVIEW
Web Font Weight Variants
No detectable Google Fonts weights
No detectable Google Fonts weights
Info::
No detectable Google Fonts weights
The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+CO2 Per Page Load0.06g CO2 per viewPASS
CO2 Per Page Load
0.06g CO2 per view
0.06g CO2 per view
Info::
0.06g CO2 per page view
This page transfers 0.3 MB, producing an estimated 0.06g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.01g, end-user device 0.05g.
Got: 0.06g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 7.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 7.4 kg of CO2 annually — equivalent to charging 921 smartphones.
Info::
Green hosting reduces data center emissions
0.06g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 90% of websites
Sustainable Web Design model v4 · Page size: 0.3 MB
Your site
0.06g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.00g
Network
0.01g
End-user device
0.05g
At 10,000 monthly views: Monthly: 0.6 kg · Annual: 7.4 kg · ≈ 921 smartphone charges
AGreen HostingGreen (cdn)PASS
Green Hosting
Green (cdn)
Green (cdn)
Info::
Cloudflare CDN uses renewable energy
Since most traffic is served through the CDN, the majority of data transfer energy is renewable.
Info::
Cloudflare: 100% renewable energy for global network since 2019
Info::
Green hosting status based on known provider commitments
Green hosting detection uses a curated database of provider renewable energy commitments. This is not a real-time verification. For authoritative checks, visit thegreenwebfoundation.org.
Green Hosting✓ Green Hosted
Hosting Not identified✗CDN Cloudflare✓
Cloudflare: 100% renewable energy for global network since 2019
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight92% cachedPASS
Repeat Visit Weight
92% cached
92% cached
Info::
92% reduction on repeat visits
Returning visitors download only 20 KB (vs 265 KB first visit). 7 of 8 resources are served from browser cache, saving 0.06g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.06g)
First visit
265 KB
Repeat visit
20 KB
92% reduction on repeat visits
Saving 0.06g CO2 per returning visitor
7 resources served from cache · 1 resources re-downloaded
A+Carbon Budget10th percentilePASS
Carbon Budget
10th percentile
10th percentile
Info::
0.06g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 10th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.06g
10th percentile
Cleaner than 90% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 90% cleaner ✓
vs Target 88% cleaner ✓
Image Optimization9 images, 155 KB total, 17 KB wastedINFO
Image Optimization
9 images, 155 KB total, 17 KB wasted
Image Optimization Audit
Total Images
9
Total Size
155 KB
Oversized
1
Wasted
17 KB
9 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.