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 2026.10.01 -

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)  [v6R] 1/0.068367s	0.630786	462150	5.60	0.294715	460790	11.96	214%	graph
com.github  (https)	1.395194	576205	3.15	0.003039	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.112487s  [v6R] 2/0.115977s	0.166573	118475	5.45	0.160155	118475	5.65	104%	graph
com.google.www  (https)	0.081973	84691	7.98	0.075860	84678	8.61	108%	graph
com.linkedin.www  (https)	0.301028	140465	3.56	0.216778	139186	4.92	138%	graph
com.twitter  (https)  [v4R] 1/0.085672s	0.338848	35200	0.79	0.004116	0	0	n/a	graph
com.youtube.www  (https)	0.524179	888049	12.93	0.246514	888760	27.56	213%	graph
gov.hhs.www  (https)	0.061779	365	0.05	0.053812	365	0.05	115%	graph
gov.nih.nlm.ncbi.account  (https)	0.651848	5104341	59.82	0.528055	5104341	73.76	123%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.048919	119140	18.94	0.096948	119140	9.47	50%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	1.095201	158529	1.10	0.024155	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.102543	42227	3.16	0.114400	42227	2.83	89%	graph
gov.nih.nlm.ncbi.www  (https)	0.045160	39223	6.65	0.071844	39223	4.21	63%	graph
gov.nih.nlm.support  (https)	0.435191	46167	0.81	0.002244	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.102340	33490	2.50	0.112310	33490	2.28	91%	graph
gov.nih.www  (https)	0.046841	5480	0.91	0.127786	5505	0.33	36%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.049644s  [v6R] 1/0.028907s	0.153302	42227	2.11	0.141410	42227	2.28	109%	graph
gov.usa.www  (https)	0.255167	48647	1.46	0.044028	48647	8.44	580%	graph
IPv6 operational: 100% of linked subdomains (1/1), 78% of all linked domains (14/18)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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