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 2026.03.09 -

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] 1/0.136418s  [v6R] 1/0.483964s	0.195264	130146	5.09	0.767326	130146	1.29	25%	graph
com.facebook.www  (https)  [v4R] 1/0.097113s  [v6R] 1/0.082228s	0.376725	465086	9.44	0.333519	466780	10.69	113%	graph
com.flickr.www  (https)	0.044133	53936	9.35	0.073219	53936	5.64	60%	graph
com.instagram  (https)  [v4R] 1/0.066439s  [v6R] 1/0.057351s	0.422392	600628	10.86	0.442931	595450	10.28	95%	graph
com.myshopify.library-of-congress-shop  (https)	0.717068	230124	2.45	0.141801	230124	12.45	509%	graph
com.pinterest.www  (https)	0.202833	743969	28.10	0.003030	0	0	n/a	graph
com.x  (https)	0.366003	238525	4.97	0.003054	0	0	n/a	graph
com.youtube.www  (https)	0.184405	684679	28.39	0.198684	680462	26.22	92%	graph
gov.congress.www  (https)	0.049639	6843	1.07	0.063528	6908	0.84	79%	graph
gov.copyright  [v4R] 1/0.038828s  [v6R] 1/0.243236s	0.093333	55452	4.55	0.319255	55452	1.33	29%	graph
gov.copyright  (https)	0.064157	55452	6.61	0.062241	55452	6.82	103%	graph
gov.loc  (https)  [v4R] 1/0.084715s  [v6R] 1/0.076900s	0.155903	190896	9.40	0.160553	190896	9.10	97%	graph
gov.loc.ask  (https)	0.145590	46437	2.44	0.003025	0	0	n/a	graph
gov.loc.blogs  (https)	0.100937	53727	4.10	0.070222	53727	5.86	143%	graph
gov.loc.catalog  (https)	0.061306	29274	3.66	1.114257	29274	0.20	5%	graph
gov.loc.lcm  (https)	0.068625	185300	20.79	0.096900	185300	14.73	71%	graph
gov.loc.newsroom  (https)	0.032057	919	0.22	0.042561	919	0.17	76%	graph
gov.loc.www  [v4R] 1/0.090314s  [v6R] 1/0.088728s	0.189459	190896	7.71	0.164859	190896	8.88	115%	graph
• gov.loc.www  (https)	0.069168	190896	21.11	0.062990	190896	23.49	111%	graph
net.research.www  (https)	0.096476	228190	18.13	0.006415	0	0	n/a	graph
org.purl  [v4R] 2/0.557761s	1.570881	5368	0.03	0.103678	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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