| Vocabulary | URLs / Total | URLs / Percentage |
|---|
| http://www.facebook.com/2008/ | 36,361,868 | 54.2% |
| http://opengraphprotocol.org/schema/ | 30,332,952 | 45.21% |
| http://ogp.me/ns | 14,604,730 | 21.77% |
| http://www.w3.org/1999/02/22-rdf-syntax-ns | 7,717,503 | 11.5% |
| http://rdf.data-vocabulary.org/ | 6,315,145 | 9.41% |
| http://ogp.me/ns/fb | 2,985,201 | 4.45% |
| http://purl.org/dc/terms/ | 1,568,116 | 2.34% |
| http://creativecommons.org/ns | 1,420,809 | 2.12% |
| http://purl.org/dc/elements/1.1/ | 1,385,137 | 2.06% |
| http://xmlns.com/foaf/0.1/ | 1,198,579 | 1.79% |
| http://opengraph.org/schema/ | 1,024,957 | 1.53% |
| http://developers.facebook.com/schema/ | 804,840 | 1.2% |
| http://rdfs.org/sioc/ns | 742,853 | 1.11% |
| http://purl.org/rss/1.0/modules/content/ | 657,953 | 0.98% |
| http://www.w3.org/2000/01/rdf-schema | 625,190 | 0.93% |
| http://mixi-platform.com/ns | 491,636 | 0.73% |
| http://www.w3.org/2004/02/skos/core | 345,648 | 0.52% |
| http://search.yahoo.com/searchmonkey/media/ | 193,208 | 0.29% |
| http://www.w3.org/2006/vcard/ns | 188,394 | 0.28% |
| http://gree.jp/ | 153,377 | 0.23% |
| http://purl.org/goodrelations/v1 | 133,541 | 0.2% |
| http://schema.org/ | 124,291 | 0.19% |
| http://rdfs.org/sioc/types | 108,728 | 0.16% |
| http://ogp.me/ | 84,976 | 0.13% |
| http://rdf.data-vocabulary.org/ | 76,835 | 0.11% |
| http://search.yahoo.com/searchmonkey/product/ | 66,753 | 0.1% |
| http://search.yahoo.com/searchmonkey/commerce/ | 65,878 | 0.1% |
| http://purl.org/ontology/mo/ | 58,009 | 0.09% |
| http://www.facebook.com/2008/fbml/ | 55,001 | 0.08% |
| http://dbpedia.org/ontology/ | 50,475 | 0.08% |
| http://search.yahoo.co.jp/searchmonkey/shopping/ | 49,392 | 0.07% |
| http:/rdf.data-vocabulary.org | 46,542 | 0.07% |
| http://www.w3.org/2002/07/owl | 45,501 | 0.07% |
| http://ogp.me/ns/ | 45,143 | 0.07% |
| http://www.w3.org/1999/ | 40,190 | 0.06% |
| http://dbpedia.org/property/ | 39,941 | 0.06% |
| http://opengraphprotocol.org/ | 38,177 | 0.06% |
| http://dbpedia.org/ | 35,829 | 0.05% |
| http://purl.org/vocab/frbr/core | 20,741 | 0.03% |
| http://purl.org/ontology/mfo/ | 19,437 | 0.03% |
| http://www.loc.gov/loc.terms/relators/ | 17,397 | 0.03% |
| http://ogp.me/ns/book | 17,016 | 0.03% |
| http://www.abmeta.org/ns | 15,768 | 0.02% |
| http://yago-knowledge.org/resource/ | 15,266 | 0.02% |
| http://lod.openlinksw.com/describe/ | 15,150 | 0.02% |
| http://ogp.mc/ns | 15,130 | 0.02% |
| http://umbel.org/umbel/rc/ | 14,835 | 0.02% |
| http://purl.org/stuff/rev | 14,089 | 0.02% |
| http://www.w3.org/2003/01/geo/wgs84-pos | 13,475 | 0.02% |
| http://vocab.org/bio/0.1/ | 13,110 | 0.02% |
| http://open.vocab.org/terms/ | 10,745 | 0.02% |
| http://ogp.me/ns/article | 8,841 | 0.01% |
| http://commontag.org/ns | 8,413 | 0.01% |
| http://www.opengis.net/gml/ | 5,963 | 0.01% |
| http://www.georss.org/georss/ | 5,848 | 0.01% |
| http://www.w3.org/2001/vcard-rdf/3.0 | 5,831 | 0.01% |
| http://likemastr.com/api/ns | 5,406 | 0.01% |
| http://facebook.com/2008/ | 4,496 | 0.01% |
| http://purl.oclc.org/argot/ | 4,100 | 0.01% |
| http://www.w3.org/2006/vcard/ | 3,761 | 0.01% |
| http://www.productontology.org/id/ | 3,569 | 0.01% |
| http://www.facebook.com/2011/ | 3,394 | 0.01% |
| http://plus.lefigaro.fr/fp/elements/1.0/ | 3,169 | 0.0% |
| http://www.renren.com/2009/ | 2,963 | 0.0% |
| http://www.w3.org/2002/12/cal/ | 2,765 | 0.0% |
| http://pictopia.com/ | 2,688 | 0.0% |
| http://x.myspacecdn.com/modules/sitesearch/static/rdf/profileschema.rdf | 2,651 | 0.0% |
| http://purl.org/ontology/po/ | 2,614 | 0.0% |
| http://www.w3.org/2002/12/cal/icaltzd | 2,510 | 0.0% |
| http://purl.org/amicroformat/ | 2,398 | 0.0% |
| http://sw.nokia.com/MARS-3/ | 2,255 | 0.0% |
| https://ogp.me/ns | 2,221 | 0.0% |
| http://www.w3.org/2005/02/ | 2,197 | 0.0% |
| http://search.yahoo.com/searchmonkey/ | 2,094 | 0.0% |
| http://www.gazettes-online.co.uk/ontology | 2,005 | 0.0% |
| http://sw.nokia.com/Editor-1/ | 1,997 | 0.0% |
| http://www.getty.edu/CDWA/ | 1,754 | 0.0% |
| http://www.vraweb.org/vracore4.htm | 1,754 | 0.0% |
| http://sw.nokia.com/NC-1/ | 1,669 | 0.0% |
| http://tw.rpi.edu/proj/portal.wiki/index.php/ | 1,647 | 0.0% |
| http://sw.nokia.com/WebArch-1/ | 1,570 | 0.0% |
| http://ogp.me/schema/ | 1,402 | 0.0% |
| http://developers.facebook.com/ | 1,383 | 0.0% |
| Http://www.facebook.com/2008/ | 1,370 | 0.0% |
| http://opg.me/ns | 1,308 | 0.0% |
| http://ogp.me/ns/profile | 1,260 | 0.0% |
| http://sw.nokia.com/FN-1/ | 1,192 | 0.0% |
| http://opg.me/ns/fb | 1,034 | 0.0% |
| http://zbw.eu/namespaces/zbw-extensions/ | 1,009 | 0.0% |