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 2026.07.21 -

gov.americaslibrary. | 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] 1/0.352663s  [v6R] 1/0.065808s	0.439122	135609	2.36	0.134402	135609	7.72	328%	graph
com.facebook.www  (https)	0.432866	422589	7.46	0.612359	427441	5.33	71%	graph
com.flickr.www  (https)	0.070972	57606	6.28	0.085096	57606	5.17	82%	graph
com.instagram  (https)  [v4R] 1/0.257084s  [v6R] 1/0.090413s	0.855816	395866	3.53	0.476834	396087	6.35	180%	graph
com.linkedin.www  (https)	0.211142	141608	5.12	1.276985	141608	0.85	17%	graph
com.myshopify.library-of-congress-shop  (https)	0.126572	18	0.00	0.618574	244515	3.02	278630%	graph
com.pinterest.www  (https)	0.809578	1135148	10.71	0.003030	0	0	n/a	graph
com.x  (https)	0.325720	266111	6.25	0.003033	0	0	n/a	graph
com.youtube.www  (https)	0.282333	837258	22.65	0.255013	836587	25.03	110%	graph
• gov.americaslibrary.www  (https)  [v4R] 3/0.125053s  [v6R] 3/0.144671s	0.380108	52661	1.06	0.176360	52661	2.28	216%	graph
gov.congress.www  (https)	0.039545	5343	1.05	0.052696	5385	0.79	76%	graph
gov.copyright  [v4R] 1/0.029005s  [v6R] 1/0.030971s	0.306151	54827	1.37	0.112189	54827	3.73	273%	graph
gov.copyright  (https)	0.067949	54827	6.24	0.053909	54827	7.89	126%	graph
gov.loc  (https)  [v4R] 1/0.066049s  [v6R] 1/0.054198s	0.115748	90037	5.97	0.976876	90037	0.70	12%	graph
gov.loc.ask  (https)	0.132683	46782	2.70	0.006326	0	0	n/a	graph
gov.loc.blogs  (https)	0.065957	53906	6.33	0.064132	53905	6.43	102%	graph
gov.loc.catalog  (https)	0.056814	31404	4.28	0.073379	31404	3.28	77%	graph
gov.loc.newsroom  (https)	0.280819	919	0.03	0.046396	919	0.15	609%	graph
gov.loc.www  [v4R] 1/0.050282s  [v6R] 1/0.197319s	0.115928	90037	5.97	0.897148	90037	0.77	13%	graph
gov.loc.www  (https)	0.314764	90037	2.19	0.062445	90037	11.08	506%	graph
gov.usa.www  (https)	0.035284	47199	10.29	0.273523	47199	1.32	13%	graph
net.research.www  (https)	0.128440	197987	11.80	0.012658	0	0	n/a	graph
org.purl  [v4R] 2/1.006552s	1.944053	5368	0.02	0.040296	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 78% of all linked domains (18/23)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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