webXtrend found the schema.org type DefinedTermSet in the structured data of 3,828 websites, 0.0 % of the 77,645,712 websites with content it analysed on 4 November 2026. The count includes its subtypes, such as CategoryCodeSet.

The count began on 30 October 2026. Until every website has been analysed once, the figures are provisional and overstate the share of websites with structured data.

Typeschema.org/DefinedTermSet
SupertypeCreativeWork
KindDescribes the website
Websites3,828
Share of analysed websites0.0 %
Share of websites with structured data0.0 %
Rank among types187
Top 100,000 websites7 (0.0 %)
As of4 November 2026

Subtypes of DefinedTermSet

The more specific types under DefinedTermSet that websites use, each with its own subtypes. A website can use more than one of them.

TypeWebsitesShare of analysed websites
CategoryCodeSet290.0 %

Where DefinedTermSet is used

The TLDs with the most websites using DefinedTermSet, and its share of all analysed websites under each.

TLDWebsitesShare of analysed websites under the TLD
.com2,4940.0 %
.ai1610.0 %
.de1300.0 %
.org710.0 %
.app620.0 %
.br590.0 %
.cn510.0 %
.ru490.0 %
.co450.0 %
.dev390.0 %
.es340.0 %
.fr300.0 %
.ch280.0 %
.au280.0 %
.net270.0 %
.ca270.0 %
.eu240.0 %
.cz230.0 %
.pl180.0 %
.dk150.0 %

Top websites using DefinedTermSet

Websites of the Tranco top 100,000 whose homepage carries DefinedTermSet or one of its subtypes, by their rank in the list.

Related types

Other types under CreativeWork: WebSite (19,843,090), WebPage (12,962,660), Article (1,752,661), SoftwareApplication (1,070,673), Review (354,261), MediaObject (198,549), WebPageElement (152,760), HowTo (89,571), Credential (72,184), Game (68,157). All types: structured data statistics.

Check a website for DefinedTermSet

Every domain page on webXtrend lists the schema.org types its homepage carries, in the section Structured data. Search for a domain: