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 2025.09.21 -

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] 1/0.047576s  [v6R] 1/0.041251s	0.082497	129689	12.07	0.077862	129689	12.85	106%	graph
com.facebook.www  (https)  [v6R] 1/0.083498s	0.236706	77012	2.49	0.246642	74188	2.30	92%	graph
com.flickr.www  (https)	0.043693	46343	8.22	0.050232	46343	7.07	86%	graph
com.instagram  (https)  [v4R] 1/0.088694s  [v6R] 1/0.095591s	0.578081	437810	5.78	0.478747	437743	6.99	121%	graph
com.myshopify.library-of-congress-shop  (https)	0.106399	307140	22.11	0.111590	307140	21.11	95%	graph
com.pinterest.www  (https)	1.979349	572504	2.21	0.003350	0	0	n/a	graph
com.x  (https)	0.128488	221529	13.20	0.003364	0	0	n/a	graph
com.youtube.www  (https)	0.253408	665732	20.08	0.210369	663012	24.09	120%	graph
gov.congress.www  (https)	0.043175	6918	1.23	0.045941	7003	1.19	97%	graph
gov.copyright  [v4R] 1/0.078192s  [v6R] 1/0.031797s	0.115302	57487	3.81	0.079355	57487	5.55	146%	graph
gov.copyright  (https)	0.047161	57487	9.33	0.043111	57487	10.20	109%	graph
gov.loc  (https)  [v4R] 1/0.045568s  [v6R] 1/0.034543s	0.102339	185123	13.85	0.091754	185123	15.52	112%	graph
gov.loc.ask  (https)	0.082045	46269	4.30	0.001817	0	0	n/a	graph
gov.loc.blogs  (https)	0.069715	53900	5.96	0.050665	53900	8.22	138%	graph
gov.loc.catalog  (https)	0.054338	28602	4.04	0.051769	28602	4.28	106%	graph
gov.loc.lcm  (https)	0.056677	182423	24.85	0.048316	182423	29.00	117%	graph
gov.loc.newsroom  (https)	0.096111	112211	8.92	0.094112	112211	9.11	102%	graph
gov.loc.www  [v4R] 1/0.131661s  [v6R] 1/0.125267s	0.189608	185123	7.47	0.181371	185123	7.80	104%	graph
• gov.loc.www  (https)	0.056972	185123	25.22	0.046333	185123	30.70	122%	graph
net.research.www  (https)	0.059161	366835	47.44	0.003352	0	0	n/a	graph
org.purl  [v4R] 2/0.347077s	1.361420	5368	0.03	0.003362	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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