Referenced Domain IPv4/IPv6 Web Statistics

Background and Methodology	IPv6 & DNSSEC SnapShots
USG IPv6 & DNSSEC Statistics	USG IPv4 Statistics
Industry IPv6 & DNSSEC Statistics	Industry IPv4 Statistics
University IPv6 & DNSSEC Statistics	University IPv4 Statistics
CFO Act Agency Summary Statistics	USG IPv6 Enabled WWW Sites

- Referenced Domain Web Statistics for 2025.12.15 -

gov.loc. | Library of Congress	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.apple.itunes  (https)  [v4R] 1/0.096625s  [v6R] 1/0.146482s	0.150776	130123	6.62	0.244404	130123	4.07	61%	graph
com.facebook.www  (https)  [v4R] 1/0.062609s  [v6R] 1/0.154063s	0.170834	83367	3.74	0.336718	83576	1.90	51%	graph
com.flickr.www  (https)	0.075746	46991	4.78	0.330878	46991	1.09	23%	graph
com.instagram  (https)  [v4R] 1/0.061436s  [v6R] 1/0.071028s	0.509233	818692	12.27	0.321674	819024	19.47	159%	graph
com.myshopify.library-of-congress-shop  (https)	0.190208	220040	8.84	0.155326	220040	10.83	123%	graph
com.pinterest.www  (https)	0.286842	836339	22.31	0.003034	0	0	n/a	graph
com.x  (https)	0.502808	227133	3.45	0.003033	0	0	n/a	graph
com.youtube.www  (https)	0.188946	700677	28.43	0.253196	697003	21.02	74%	graph
gov.congress.www  (https)	0.056600	6981	0.95	0.058647	7066	0.93	98%	graph
gov.copyright  [v4R] 1/0.064993s  [v6R] 1/0.242706s	0.170865	56455	2.53	0.317368	56455	1.36	54%	graph
gov.copyright  (https)	0.085680	56455	5.07	1.085347	56455	0.40	8%	graph
gov.loc  (https)  [v4R] 1/0.270358s  [v6R] 1/0.066582s	0.378920	197454	3.99	0.158215	197454	9.53	239%	graph
gov.loc.ask  (https)	0.077682	45970	4.55	0.003053	0	0	n/a	graph
gov.loc.blogs  (https)	0.077394	53908	5.34	0.058962	53908	7.09	133%	graph
gov.loc.catalog  (https)	0.304408	29327	0.74	0.082017	29327	2.73	371%	graph
gov.loc.lcm  (https)	0.066890	182423	21.09	1.093440	182423	1.27	6%	graph
gov.loc.newsroom  (https)	0.115418	107388	7.12	0.129048	107388	6.35	89%	graph
gov.loc.www  [v4R] 1/0.161752s  [v6R] 1/0.115061s	0.234343	197454	6.44	0.208797	197454	7.24	113%	graph
• gov.loc.www  (https)	0.087410	197454	17.32	0.140875	197454	10.76	62%	graph
net.research.www  (https)	0.112558	244083	16.63	0.010626	0	0	n/a	graph
org.purl  [v4R] 2/1.457113s	2.467588	5368	0.02	0.004120	0	0	n/a	graph
IPv6 operational: 88% of linked subdomains (7/8), 76% of all linked domains (16/21)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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