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 2026.03.05 -

gov.pubmed. | 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] 1/1.118527s  [v6R] 1/0.106797s	1.301043	79670	0.47	0.374335	463876	9.46	2025%	graph
com.github  (https)	0.218860	562491	19.69	0.003029	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.301875s  [v6R] 2/0.083350s	0.342851	118475	2.64	0.150891	118475	6.03	228%	graph
com.google.www  (https)	0.074198	17828	1.84	0.084794	17866	1.62	88%	graph
com.linkedin.www  (https)	0.354054	139915	3.02	0.234402	141194	4.60	153%	graph
com.twitter  (https)  [v4R] 1/0.083848s	0.235915	238225	7.73	0.005264	0	0	n/a	graph
com.youtube.www  (https)	0.217359	679357	23.89	0.197691	682316	26.42	111%	graph
gov.hhs.www  (https)	0.094915	363	0.03	0.044598	365	0.06	215%	graph
gov.nih.nlm.ncbi.account  (https)	0.608945	4807785	60.33	2.005399	4807785	18.29	30%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.101325	119140	9.00	0.102056	119140	8.91	99%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.078510	158885	15.54	0.024280	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.112017	42243	2.88	0.600194	42243	0.54	19%	graph
gov.nih.nlm.ncbi.www  (https)	0.000	0	0	0.052318	37806	5.55	n/a	graph
gov.nih.nlm.support  (https)	0.464426	43702	0.72	0.002551	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.103544	34757	2.57	0.326201	34757	0.81	32%	graph
gov.nih.www  (https)	0.075550	59644	6.07	0.023230	0	0	n/a	graph
• gov.pubmed.www  (https)  [v4R] 1/0.063638s  [v6R] 1/0.046205s	0.185603	42243	1.74	0.162479	42243	1.99	114%	graph
gov.usa.www  (https)	0.047772	47580	7.72	0.051370	47580	7.12	92%	graph
IPv6 operational: 100% of linked subdomains (1/1), 72% of all linked domains (13/18)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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