rel-ecolabel: Difference between revisions

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== previous formats ==
== previous formats ==
'''This section should be moved to a separate page like [[ecolabel-formats]].'''
'''This section should be moved to a separate page like [[ecolabel-formats]].'''
=== Similar Microformats ===
* [[rel-license]]
indicates a "that the destination of that hyperlink is a license for the current page." whereas rel-ecolabel would indicate that the destination of that hyperlink is an ecolabel for a product, company or service listed on the page.
In this case I am uncertain if rel-license defines an authoritative source for license information. The difference with rel-ecolabel is that we would define an authoritative source at We'd do this because there are many ecolabels 300+ and very few display their information in a standardised way. That being said, we're not beholden to this approach.
* [[rel-tag]]
This would need to have the option / ability to point to the issuing labels site as well. Or if want to become the source, it should have a simple an quick method of adding labels into the system that aren't listed .. eg. a lot of UK based certified labels are currently not on the site. Would there be a conflict if I wanted to point the URL at the label associations website instead of (asked for discussion purposes)
Label example: Vegan Society Trademark:
=== Ecolabel Schema ===
ecolabel entry @
ecolabel entry @
ecolabel ISO types
=== conformsTo ===
The  [ Dublin Core conformsTo] term appears to already solve a more general problem of indicating conforming to any external label etc, not just ecolabels.
Re-using conformsTo is also better than minting a new rel term. conformsTo can be used in a wider set of situations that "ecolabel" in that it can be used to indicate non-ecological conformance to standards too. e.g. a web page can conform to HTML 4.01 Strict, or software could conform to "Certified for Windows Vista" or a toy could conform to a particular child safety standard.
As a [[poshformat]] inside the product description, e.g. inside an [[hProduct]]:
<source lang=html4strict>
This product conforms to <a rel="conformsTo"
using [ RDFa]:
This product conforms to <a about="#product"
xmlns:dc="" rel="dc:conformsTo"
These claims could be verified by the authority being linked to (in the case above by simply providing a link back from to the product:
as a poshformat on the certified-carbonfree page:
<source lang=html4strict>
The <a href="" rev="conformsTo">Foo product conforms to certified carbonfree.</a>
as RDFa:
by linking to it using an about attribute, a namespace URL declaration, and labeling it with <tt>rev="dc:conformsTo"</tt>.

== Brainstorming ==
== Brainstorming ==

Revision as of 23:54, 27 July 2009

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It's difficult to authenticate eco-friendly goods and services online.

  • The proposed solution below is not a solution to the above problem. The proposed solution offers a mechanism by which a service can claim an eco-friendly label, but no way of authenticating that claim.

Proposed Solution

It is premature to propose any brainstormed solution without first at a minimum per the process creating pages to research and collect ecolabel-examples and ecolabel-formats. Only then should proposals be drafted on a ecolabel-brainstroming page.

We are interested in establishing "rel-ecolabel" as a way of identifying ecolabelled (and thus eco-friendly) items (where item = ecolabel certified unit including products, services, companies, land, or any other thing that can be certified eco-friendly) on the World Wide Web.

Definition of an ecolabel:


This section should be moved to a separate page like ecolabel-examples.

previous formats

This section should be moved to a separate page like ecolabel-formats.


This section should be moved to a separate page like ecolabel-brainstorming.


Rel-Ecolabel is a simple, open, format for indicating ecolabelled items which is embedable in HTML or XHTML, Atom, RSS, and arbitrary XML. Specification 2008-05-12


Jacob Malthouse (, formerly of ICANN (


By adding rel="ecolabel" to a hyperlink, a page indicates that the destination of that hyperlink is the ecolabel for an ecolabelled item listed on the current page. E.g. with the following hyperlink:

<a href="" rel="ecolabel">ecologo</a>

NOTE: in the highlighted portion - is this where we would put an ecolabel code or readable URL for entry?

the author indicates that the product, company, or services has obtained an "ecologo" certification.

--Spiritquest 23:06, 27 July 2009 (UTC)

It seems that it might work well with being linked to an hproduct / hCard - to identify a manufacturer - I've yet to explore hproduct in detail.

I don't know that pointing the URL of the ecolabel directly to would work.

If I ran a product site with ecolabelled products, I would want to point to either a source of information on the label internally within the site, or have it point to a list of all data tagged with similar ecolables.

<a href="" rel="license">ecologo</a>

The destination would then show all ecologo tagged products within the catalogue of

maybe microformat parsing tools could be created to send users or pull information from site as a source of authoritative info and background on the label.

rel-tag as an example can point to an internal site structure using a taxonomy but can also use microformat tools to extend data searches to sites like technorati.

Multiple Licenses

Multiple such rel="ecolabel" hyperlinks indicate that multiple items on the page are available under any of the referred licenses. E.g. the following hyperlinks could be used to declare that a page is available under either an ecologo or a certified carbon free ecolabel:

<a href="" rel="ecolabel">ecologo</a> <a href="" rel="ecolabel">certified-carbon-free</a>

XMDP profile

unknown/in development



List of Ecolabels see also: about


See Also