https://www.alinasdogservices.co.uk
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
80
GRADE
B
FIX
1
REVIEW
3
PASS
3
INFO
1
Checks
83 PASS 3 REVIEW 1 FIX
DGreen HostingActionUnknownFIX
Green Hosting
ActionUnknown
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
BTransfer Efficiency77% efficientREVIEW
Transfer Efficiency
77% efficient
77% efficient
Info::
Transfer efficiency: 77%
An estimated 336 KB (23%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 336 KB of unused JavaScript. This wasted data produces 0.09g of unnecessary CO2 per page view.
Total waste: 336 KB (23% of page weight)
Unused JS 336 KB
0.09g unnecessary CO2 per visit
Actual transfer 1465 KB
Theoretical minimum 1129 KB
Potential savings 336 KB (0.09g CO2)
See Deep Analysis sections above for specific optimizations.
BWeb Font Weight Variants6 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
6 font weights loaded across 2 famil(y/ies)
6 font weights loaded across 2 famil(y/ies)
Info::
6 font weights loaded -- review whether all are used
5+ weights for a single page is often more than needed. Compare against the actual font-weight CSS rules in your stylesheets; trim weights that aren't applied to any element. Affected families: Google Sans, Roboto%3A100%2C300%2C400%2C700.
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
ACO2 Per Page Load0.41g CO2 per viewPASS
CO2 Per Page Load
0.41g CO2 per view
0.41g CO2 per view
Info::
0.41g CO2 per page view
This page transfers 1.4 MB, producing an estimated 0.41g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.08g, network 0.07g, end-user device 0.26g.
Got: 0.41g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 48.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 48.6 kg of CO2 annually — equivalent to charging 6080 smartphones.
0.41g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 70% of websites
Sustainable Web Design model v4 · Page size: 1.4 MB
Your site
0.41g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.08g
Network
0.07g
End-user device
0.26g
At 10,000 monthly views: Monthly: 4.1 kg · Annual: 48.6 kg · ≈ 6080 smartphone charges
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 35 KB (vs 1465 KB first visit). 31 of 32 resources are served from browser cache, saving 0.40g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.41g)
First visit
1465 KB
Repeat visit
35 KB
98% reduction on repeat visits
Saving 0.40g CO2 per returning visitor
31 resources served from cache · 1 resources re-downloaded
ACarbon Budget30th percentilePASS
Carbon Budget
30th percentile
30th percentile
Info::
0.41g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 70% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 30th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.41g
30th percentile
Cleaner than 70% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 32% cleaner ✓
vs Target 19% cleaner ✓
Image Optimization4 images, 191 KB total, 142 KB wastedINFO
Image Optimization
4 images, 191 KB total, 142 KB wasted
Image Optimization Audit
Total Images
4
Total Size
191 KB
Oversized
3
Wasted
142 KB
2 missing alt text 4 missing dimensions 3 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.