https://romewebagency.it
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
1
REVIEW
3
PASS
3
INFO
1
Checks
83 PASS 3 REVIEW 1 FIX
DCarbon BudgetAction52th percentileFIX
Carbon Budget
Action52th percentile
52th percentile
Warning::
0.68g CO2 — above the median website (0.60g)
Heavier than an estimated 48% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 52th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.68g
52nd percentile
Cleaner than 48% of websites
✗ Above the median website
vs Median 14% more
vs Target 37% more
BCO2 Per Page Load0.68g CO2 per viewREVIEW
CO2 Per Page Load
0.68g CO2 per view
0.68g CO2 per view
Info::
0.68g CO2 per page view
This page transfers 2.9 MB, producing an estimated 0.68g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.14g, end-user device 0.53g.
Got: 0.68g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 82.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 82.2 kg of CO2 annually — equivalent to charging 10268 smartphones.
Info::
Green hosting reduces data center emissions
0.68g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 48% of websites
Sustainable Web Design model v4 · Page size: 2.9 MB
Your site
0.68g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.14g
End-user device
0.53g
At 10,000 monthly views: Monthly: 6.8 kg · Annual: 82.2 kg · ≈ 10268 smartphone charges
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Apache HTTP Server uses renewable energy
Info::
Apache HTTP Server: Verified by the Green Web Foundation
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 Apache HTTP Server✓CDN Not identified✗
Apache HTTP Server: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
CWeb Font Weight VariantsAction21 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
Action21 font weights loaded across 2 famil(y/ies)
21 font weights loaded across 2 famil(y/ies)
Warning::
21 font weights loaded -- likely 100+ KB of unused payload
Loading 21 font weights typically transfers 200-400 KB just for fonts. Most pages legitimately use 2-3 weights (regular + bold, maybe medium). Audit which weights your stylesheet actually applies and trim the Google Fonts URL accordingly. Affected families: Roboto, Source Sans Pro%3A200%2C200italic%2C300%2C300italic%2C400%2C400italic%2C600%2C600italic%2C700%2C700italic%2C900%2C900italic%7CMontserrat%3A100%2C200%2C300%2C400%2C500%2C600%2C700%2C800%2C900%2C100italic%2C200italic%2C300italic%2C400italic%2C500italic%2C600italic%2C700italic%2C800italic%2C900italic.
A+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 25 KB (vs 2961 KB first visit). 45 of 46 resources are served from browser cache, saving 0.68g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.68g)
First visit
2961 KB
Repeat visit
25 KB
99% reduction on repeat visits
Saving 0.68g CO2 per returning visitor
45 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency99% efficientPASS
Transfer Efficiency
99% efficient
99% efficient
Info::
Transfer efficiency: 99%
Only 22 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 22 KB (1% of page weight)
Unused JS 22 KB
0.01g unnecessary CO2 per visit
Actual transfer 2961 KB
Theoretical minimum 2939 KB
Potential savings 22 KB (0.01g CO2)
See Deep Analysis sections above for specific optimizations.
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Hetzner Online GmbH
Image Optimization8 images, 0 KB total, 0 KB wastedINFO
Image Optimization
8 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
8
Total Size
0 KB
Oversized
4
3 missing dimensions 6 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.