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 2025.09.17 -

gov.digitalpreservation. | Library of Congress	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.apple.itunes  [v4R] 2/0.114057s  [v6R] 2/0.118331s	0.152262	129689	6.51	0.167684	129689	5.92	91%	graph
com.facebook.www  [v4R] 2/0.116843s  [v6R] 2/0.112349s	0.269328	77999	2.21	0.300592	78135	1.99	90%	graph
com.flickr.www  [v4R] 1/0.005285s  [v6R] 1/0.005625s	0.047758	46343	7.52	0.049443	46343	7.22	96%	graph
com.pinterest.www  [v4R] 1/0.006066s	0.106322	568230	40.90	0.003437	0	0	n/a	graph
com.twitter  [v4R] 2/0.105639s	0.228431	221001	7.40	0.001216	0	0	n/a	graph
com.youtube.www  [v4R] 1/0.029086s  [v6R] 1/0.021777s	0.177728	661773	28.53	0.202792	662264	25.01	88%	graph
gov.digitalpreservation.www  [v4R] 1/0.072045s  [v6R] 1/0.075595s	0.134510	23817	1.36	0.217757	23817	0.84	62%	graph
• gov.digitalpreservation.www  (https)	0.143410	23817	1.27	0.161468	23817	1.13	89%	graph
gov.digitizationguidelines.www  [v4R] 1/0.037516s  [v6R] 1/0.048249s	0.169786	14746	0.67	0.168616	14746	0.67	101%	graph
gov.loc  (https)  [v4R] 1/0.068055s  [v6R] 1/0.064553s	0.119371	185080	11.87	0.132025	185080	10.70	90%	graph
gov.loc.ask  (https)	0.086805	46269	4.10	0.007570	0	0	n/a	graph
gov.loc.blogs  [v4R] 1/0.044529s  [v6R] 1/0.036089s	0.115630	54482	3.61	0.081190	54482	5.13	142%	graph
gov.loc.catalog  (https)	0.047903	28657	4.65	0.045475	28657	4.86	104%	graph
gov.loc.labs  (https)	0.073923	15	0.00	0.079298	15	0.00	92%	graph
gov.loc.www  (https)	0.052635	185080	27.15	0.039917	185080	36.21	133%	graph
gov.usa.www  [v4R] 1/0.005871s  [v6R] 1/0.008901s	0.028240	48043	13.09	0.030818	48043	12.22	93%	graph
network.dpoe  [v4R] 2/0.240010s	0.418406	94150	1.72	0.032050	0	0	n/a	graph
org.archive.web  (https)	0.430204	153873	2.73	0.064009	0	0	n/a	graph
org.ndsr-program  (https)	0.050196	93136	14.21	0.015715	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (2/2), 68% of all linked domains (13/19)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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