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 2026.03.17 -

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] 1/0.101106s  [v6R] 1/0.313780s	1.123682	467197	3.17	1.663624	465185	2.13	67%	graph
com.fontawesome.use  (https)	0.098950	27150	2.11	0.075223	27150	2.76	131%	graph
com.google.www  (https)	0.294401	20680	0.54	0.084839	20538	1.87	348%	graph
com.googleapis.fonts  (https)	0.138169	1621	0.09	0.061842	1621	0.20	226%	graph
com.gstatic.fonts  (https)	0.038434	1561	0.31	0.035442	1561	0.34	109%	graph
com.linkedin.www  (https)	0.314862	141546	3.44	0.484549	141175	2.23	65%	graph
com.twitter  (https)  [v4R] 1/0.287800s	0.680379	238714	2.68	0.003036	0	0	n/a	graph
com.youtube.www  (https)	0.388623	687127	13.51	0.555047	683281	9.39	70%	graph
gov.clinicaltrials  (https)	0.072862	94488	10.01	0.056152	94488	12.87	129%	graph
gov.hhs.www  (https)	0.050287	365	0.06	1.094012	365	0.00	5%	graph
gov.medlineplus  (https)	0.132445	26445	1.53	0.311623	26445	0.65	42%	graph
gov.medlineplus.magazine  (https)	2.055818	58253	0.22	0.056994	0	0	n/a	graph
gov.nih.nlm.ncbi.blast  (https)  [v4R] 1/0.062240s  [v6R] 1/1.099444s	0.959094	31679	0.25	1.872035	31679	0.13	51%	graph
gov.nih.nlm.ncbi.www  (https)	0.252191	37806	1.14	0.261419	37806	1.11	97%	graph
gov.nih.nlm.openi  (https)	0.000	0	0	0.288417	1939	0.05	n/a	graph
gov.nih.nlm.uts  (https)	0.107972	4596	0.33	0.090645	4596	0.39	119%	graph
gov.nih.nlm.www  (https)	0.123875	34757	2.16	0.108310	34757	2.46	114%	graph
gov.nih.www  (https)	0.057135	59592	7.98	0.004180	0	0	n/a	graph
• gov.nlm.www  (https)  [v4R] 1/0.161092s  [v6R] 1/1.094361s	0.460733	34757	0.58	1.210401	34757	0.22	38%	graph
gov.usa.www  (https)	0.047820	47580	7.72	0.803778	47580	0.45	6%	graph
org.purl  [v4R] 2/1.295746s	1.915387	5368	0.02	0.022972	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 81% of all linked domains (17/21)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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