Skip to content
https://www.snapchat.com

Sustainability

· 7 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
4
PASS
2
INFO
0
Device:
Mobile Desktop
Checks
7
2 PASS 4 REVIEW 1 FIX
D
Carbon Budget
Action
51th percentile
FIX
51th percentile
Warning::
0.64g CO2 — above the median website (0.60g)
Heavier than an estimated 49% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 51th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.64g

51st percentile

Cleaner than 49% of websites

✗ Above the median website

vs Median 6% more
vs Target 27% more
B
CO2 Per Page Load
0.64g CO2 per view
REVIEW
0.64g CO2 per view
Info::
0.64g CO2 per page view
This page transfers 2.7 MB, producing an estimated 0.64g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.13g, end-user device 0.49g.
Got: 0.64g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 76.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 76.4 kg of CO2 annually — equivalent to charging 9544 smartphones.
Info::
Green hosting reduces data center emissions

0.64g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 49% of websites

Sustainable Web Design model v4 · Page size: 2.7 MB

Your site
0.64g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.02g
Network
0.13g
End-user device
0.49g
At 10,000 monthly views: Monthly: 6.4 kg · Annual: 76.4 kg · ≈ 9544 smartphone charges
B
Green Hosting
Green (hosting)
REVIEW
Green (hosting)
Info::
Amazon Web Services uses renewable energy
Info::
Amazon Web Services: Verified by the Green Web Foundation
Info::
Google Cloud CDN: Inherits Google Cloud regional renewable mix
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 Amazon Web Services✓CDN Google Cloud CDN✗

Amazon Web Services: Verified by the Green Web Foundation

Google Cloud CDN: Inherits Google Cloud regional renewable mix

Based on known provider commitments. Verify at thegreenwebfoundation.org

B
Transfer Efficiency
90% efficient
REVIEW
90% efficient
Info::
Transfer efficiency: 90%
An estimated 287 KB (10%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 287 KB of unused JavaScript. This wasted data produces 0.07g of unnecessary CO2 per page view.
90% efficient

Total waste: 287 KB (10% of page weight)

Unused JS 287 KB

0.07g unnecessary CO2 per visit

Actual transfer 2752 KB
Theoretical minimum 2465 KB
Potential savings 287 KB (0.07g CO2)

See Deep Analysis sections above for specific optimizations.

B
Web Font Weight Variants
No detectable Google Fonts weights
REVIEW
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+
Repeat Visit Weight
98% cached
PASS
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 41 KB (vs 2752 KB first visit). 64 of 65 resources are served from browser cache, saving 0.63g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.64g)
First visit
2752 KB
Repeat visit
41 KB

98% reduction on repeat visits

Saving 0.63g CO2 per returning visitor

64 resources served from cache · 1 resources re-downloaded

A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback