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 2025.07.25 -

gov.nlm. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.facebook.www  (https)  [v4R] 1/0.067849s  [v6R] 1/0.055586s	0.188268	76877	3.12	0.148153	77015	3.97	127%	graph
com.fontawesome.use  (https)	0.087536	27150	2.38	0.110477	27150	1.88	79%	graph
com.google.www  (https)	0.056415	17657	2.41	0.061174	17524	2.19	91%	graph
com.googleapis.fonts  (https)	0.042875	1621	0.29	0.036506	1621	0.34	117%	graph
com.gstatic.fonts  (https)	0.024118	1561	0.50	0.023383	1561	0.52	104%	graph
com.linkedin.www  (https)	0.185585	138954	5.73	0.159338	138954	6.67	116%	graph
com.twitter  (https)  [v4R] 1/0.100903s	0.221843	274205	9.47	0.001296	0	0	n/a	graph
com.youtube.www  (https)	0.208527	615072	22.56	0.183790	609387	25.41	113%	graph
gov.clinicaltrials  (https)	0.053893	85758	12.34	0.039285	85758	16.78	136%	graph
gov.hhs.www  (https)	0.030969	365	0.09	0.111240	363	0.02	27%	graph
gov.medlineplus  (https)	0.030232	26573	6.76	0.022351	26573	9.22	136%	graph
gov.medlineplus.magazine  (https)	1.342996	58362	0.33	0.003365	0	0	n/a	graph
gov.nih.nlm.ncbi.blast  (https)  [v4R] 1/0.034659s  [v6R] 1/0.054529s	0.219706	31735	1.11	0.238382	31735	1.02	92%	graph
gov.nih.nlm.ncbi.www  (https)	0.043142	37806	6.71	0.035159	37806	8.24	123%	graph
gov.nih.nlm.openi  (https)	0.050664	1146	0.17	0.043255	1146	0.20	116%	graph
gov.nih.nlm.uts  (https)	0.080319	4596	0.44	0.071115	4596	0.49	113%	graph
gov.nih.nlm.www  (https)	0.054856	35636	5.03	0.067024	35636	4.06	81%	graph
gov.nih.www  (https)	0.157529	62933	3.06	0.064749	62933	7.50	245%	graph
• gov.nlm.www  (https)  [v4R] 1/0.076217s  [v6R] 1/0.035662s	0.124010	35636	2.19	0.090012	35636	3.02	138%	graph
gov.usa.www  (https)	0.026917	48046	14.10	0.022171	48046	16.66	118%	graph
org.purl  [v4R] 2/0.435030s	1.444285	5368	0.03	0.003421	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 86% of all linked domains (18/21)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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