Web Eco Design - Environmental Calculator - BetaThe purpose of this calculator is to give an environmental assessment of a functional unit, i.e. a user path according to measurable criteria on which the various digital professions can act.
More informations here:
CHOOSE YOUR VERSION
Calculator Version
Complete will need more informations and technical specifications
Number of pages inspected
Your functional unit page numbers
Use the Green IT
analysis tool 
to
score your journey
to
score your journeyPAGE #_number_ ANALYSIS
Plugin Score for the page #_number_
Greenhouse Gases Emission for the page #_number_ (g CO2eq)
ANALYSIS: Number of HTTP requests
ANALYSIS: Page Weight
ANALYSIS: DOM Complexity
Number of visits per year for the page
INFOS
The lower the better. Calculated using DOM complexity / Page size and number of HTTP Requests
Less HTTP Request = less
network usage = less server usage = better performance
Page weight causes
network usage and can cause low local performances
It is recommended that the pages contain less than about 1 500 DOM elements for better accessibility.
Each visit generates network consumption, server
consumption and device obsolescence
SCORE
0
kg CO2 eq
0
0
0
API
Number of API request per
INFOS
M2M connection consumes network and CPU usage
So have an environnemental impact
So have an environnemental impact
SCORE
kg CO2 eq
DEVICES DISTRIBUTION
Specific Mobile Version (Responsive at least) ?
Mobile / Tablet in %
Laptop / Desktop in %
INFOS
Mobile phone or tablet have less memory and CPU capacity. DOM and
Http Request will impact more these devices
SCORE
NETWORK
Wifi Usage rate in %
4G Usage rate in %
INFOS
4G network emits 4 times more than Wifi Usage
SCORE
kg CO2 eq
STORAGE (include replication if some)
Application Files Size (Mo)
Media Files Size (Mo)
Database Size (Mo)
Log size (Mo)
INFOS
Each byte stored consumed energy and need equipment to be used. Manufacturing servers consumes lots of energy wich emits greenhouse gases.
CO2
kg CO2
eq
kg CO2
eq
kg CO2
eq
kg
CO2 eq
BEST PRACTICES
Is there a old media deletion policy?
Is there a database lifecycle policy?
Is there a logs deletion policy?
log retention time in years
INFOS
Consider deleting old media when not used
Databases are rarely purged from old data
Logs must be deleted when not used
Depending of the activity, when can consider deleting logs could be
done once a year
SCORE
0
0
0
0
HOSTING
Server Country ?
Renewable Energy?
Server Location
INFOS
Depending on the country, the CO2eq emission factor differs
XX % of the impact in datacenter is due to energy consumption
Consider bringing your servers closer to your users
TODO