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InhaltCO₂ & EmpCo

CO₂ & EmpCo: what exactly is checked

Page weight · transfer · SWDM · green web hosting · image sizes (co2-v2). Every subtopic leads to its checkpoints with weight and explanation; the list comes from the audit engine itself.

Umweltaussagen (Green Claims)
Was eine Website über ihre Umweltleistung sagen darf: allgemeine Aussagen, Klimaneutralität, Siegel, Ziele, Vergleiche und die Hosting-Aussage.
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Umweltaussagen (Green Claims): Janusz Sobolewski, CC BY 2.0

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Frequent questions about CO₂ & EmpCo

How is the CO2 number calculated?

According to the Sustainable Web Design Model: the amount of data transmitted is used to estimate the energy demand and CO2 emissions per call. If the hosting runs with green electricity, the assigned factor decreases. It is an understandable estimate, not a certified balance sheet.

Where does the information on green energy hosting come from?

From the public database of the Green Web Foundation. If your provider is not listed there as green, we show this as "not proven green" - this may also mean that the proof has not yet been filed.

What does the EmpCo part check?

The environmental claims on your website, sentence by sentence: is there a specific feature next to “sustainable” or “eco-friendly”? Is “climate neutral” based on offsetting emissions? Is a label certified, a target linked to an implementation plan, a comparison backed by a basis? Every finding names sentence, rule and measure. The part has its own score next to the CO₂ value; it is a technical audit, not legal advice.

Do you accompany the change to green energy hosting?

Yes, as an additional service for each tested site: inventory of today’s hosting, move to a server with green electricity, re-measurement in this audit area. The price is called the price page; the booking follows as soon as the first green server is available.

Good to know

The amount of data actually transmitted is measured in the real browser.
The CO2 value is a reasonable estimate, not a certified balance sheet.
Green Energy hosting comes from the Green Web Foundation database.
When certifying, real call numbers can refine the extrapolation.
CO₂ is a measured value in the report, not a seal — sustainability labels require a certification scheme from 27 September 2026 (Directive (EU) 2024/825).

CO₂ & EmpCo: what exactly is checked

Umweltaussagen (Green Claims)

Good to know

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