https://www.91servings.in
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
79
GRADE
C
FIX
0
REVIEW
5
PASS
2
INFO
1
Checks
82 PASS 5 REVIEW
BCO2 Per Page Load0.59g CO2 per viewREVIEW
CO2 Per Page Load
0.59g CO2 per view
0.59g CO2 per view
Info::
0.59g CO2 per page view
This page transfers 2.5 MB, producing an estimated 0.59g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.12g, end-user device 0.45g.
Got: 0.59g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 70.7 kg CO2/year
With 10,000 page views per month, this page would generate approximately 70.7 kg of CO2 annually — equivalent to charging 8839 smartphones.
Info::
Green hosting reduces data center emissions
0.59g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 52% of websites
Sustainable Web Design model v4 · Page size: 2.5 MB
Your site
0.59g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.12g
End-user device
0.45g
At 10,000 monthly views: Monthly: 5.9 kg · Annual: 70.7 kg · ≈ 8839 smartphone charges
BCarbon Budget48th percentileREVIEW
Carbon Budget
48th percentile
48th percentile
Info::
0.59g CO2 — below the median website (0.60g)
Better than an estimated 52% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
Info::
Estimated 48th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.59g
48th percentile
Cleaner than 52% of websites
✗ Above the median website
vs Median 2% cleaner ✓
vs Target 18% more
BTransfer Efficiency88% efficientREVIEW
Transfer Efficiency
88% efficient
88% efficient
Info::
Transfer efficiency: 88%
An estimated 301 KB (12%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 301 KB of unused JavaScript. This wasted data produces 0.07g of unnecessary CO2 per page view.
Total waste: 301 KB (12% of page weight)
Unused JS 301 KB
0.07g unnecessary CO2 per visit
Actual transfer 2549 KB
Theoretical minimum 2247 KB
Potential savings 301 KB (0.07g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction12 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
Action12 font weights loaded across 2 famil(y/ies)
12 font weights loaded across 2 famil(y/ies)
Warning::
12 font weights loaded -- likely 100+ KB of unused payload
Loading 12 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, Rubik.
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
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 Weight97% cachedPASS
Repeat Visit Weight
97% cached
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 87 KB (vs 2549 KB first visit). 240 of 244 resources are served from browser cache, saving 0.57g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 0.59g)
First visit
2549 KB
Repeat visit
87 KB
97% reduction on repeat visits
Saving 0.57g CO2 per returning visitor
240 resources served from cache · 4 resources re-downloaded
Image Optimization125 images, 445 KB total, 0 KB wastedINFO
Image Optimization
125 images, 445 KB total, 0 KB wasted
Image Optimization Audit
Total Images
125
Total Size
445 KB
4 missing alt text 53 missing dimensions 48 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.