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 2026.03.26 -

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] 1/0.580596s	1.710145	465865	2.08	0.508527	463578	6.96	335%	graph
com.github  (https)	0.174734	569021	24.95	0.004192	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.111289s  [v6R] 2/0.105949s	0.167113	118475	5.41	0.460605	118475	1.96	36%	graph
com.google.www  (https)	0.097715	79236	6.23	0.310281	79294	1.95	31%	graph
com.linkedin.www  (https)	0.253068	141216	4.26	0.345223	141175	3.12	73%	graph
com.twitter  (https)  [v4R] 1/0.315385s	0.673235	244522	2.77	0.004113	0	0	n/a	graph
com.youtube.www  (https)	0.259025	689971	20.32	0.342047	693752	15.48	76%	graph
gov.hhs.www  (https)	0.042389	365	0.07	0.059257	365	0.05	71%	graph
gov.nih.nlm.ncbi.account  (https)	1.020141	4833288	36.15	0.709120	4833288	52.01	144%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.311613	119140	2.92	0.062422	119140	14.66	502%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.067726	157575	17.94	0.026673	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.116177	42394	2.79	0.429893	42394	0.75	27%	graph
gov.nih.nlm.ncbi.www  (https)	0.066219	37806	4.37	0.058455	37806	4.97	114%	graph
gov.nih.nlm.support  (https)	0.144703	43998	2.33	0.008476	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.073126	34757	3.63	0.090312	34757	2.95	81%	graph
gov.nih.www  (https)	0.055519	59592	8.27	0.004120	0	0	n/a	graph
• gov.pubmed.www  (https)  [v4R] 1/0.040838s  [v6R] 1/0.049500s	0.171028	42394	1.89	0.184773	42394	1.76	93%	graph
gov.usa.www  (https)	0.053869	47231	6.80	0.313871	47231	1.15	17%	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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