The website contains dublin core meta data extensions.
https://dublincore.org
Syndication Techniques
Get access to data on 1,681,353 websites Dublin Core Customers. We know of 529,112 live websites using Dublin Core and an additional 1,152,241 sites that used Dublin Core historically and 162,733 websites in the United States.
Get a list of 1,681,353 websites using Dublin Core which includes location information, hosting data, contact details, 529,112 currently live websites and an additional 550,603 domains that redirect to sites in this list. 1,152,241 sites that used this technology previouslyand 162,733 websites in the United States currently using Dublin Core.
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