https://www.openheartmediaco.com
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
2
REVIEW
1
PASS
4
INFO
1
Checks
84 PASS 1 REVIEW 2 FIX
FCO2 Per Page LoadAction3.51g CO2 per viewFIX
CO2 Per Page Load
Action3.51g CO2 per view
3.51g CO2 per view
Critical::
3.51g CO2 per page view
This page transfers 14.8 MB, producing an estimated 3.51g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.09g, network 0.73g, end-user device 2.70g.
Got: 3.51g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 421.7 kg CO2/year
With 10,000 page views per month, this page would generate approximately 421.7 kg of CO2 annually — equivalent to charging 52716 smartphones.
Info::
Green hosting reduces data center emissions
3.51g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 14.8 MB
Your site
3.51g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.09g
Network
0.73g
End-user device
2.70g
At 10,000 monthly views: Monthly: 35.1 kg · Annual: 421.7 kg · ≈ 52716 smartphone charges
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
3.51g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
3.51g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 486% more
vs Target 603% more
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.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Google Cloud, CDN: Fastly
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Fastly: 100% renewable energy for edge network
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 Google Cloud✓CDN Fastly✓
Google Cloud: Verified by the Green Web Foundation
Fastly: 100% renewable energy for edge network
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 234 KB (vs 15204 KB first visit). 254 of 255 resources are served from browser cache, saving 3.46g CO2 per repeat visit.
Info::
Repeat visit: 0.05g CO2 (first visit: 3.51g)
First visit
15204 KB
Repeat visit
234 KB
98% reduction on repeat visits
Saving 3.46g CO2 per returning visitor
254 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency98% efficientPASS
Transfer Efficiency
98% efficient
98% efficient
Info::
Transfer efficiency: 98%
Only 248 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 248 KB (2% of page weight)
Unused JS 248 KB
0.06g unnecessary CO2 per visit
Actual transfer 15204 KB
Theoretical minimum 14956 KB
Potential savings 248 KB (0.06g 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: Google Cloud
Image Optimization24 images, 62 KB total, 0 KB wastedINFO
Image Optimization
24 images, 62 KB total, 0 KB wasted
Image Optimization Audit
Total Images
24
Total Size
62 KB
22 missing dimensions 11 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.