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 2025.11.27 -

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] 1/0.178073s	0.328490	81627	1.90	0.192430	79693	3.17	167%	graph
com.github  (https)	0.048886	557428	88.60	0.003033	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.052368s  [v6R] 2/0.050038s	0.084061	118475	10.76	0.077125	118475	11.74	109%	graph
com.google.www  (https)	0.055153	17867	2.48	0.052124	17745	2.60	105%	graph
com.linkedin.www  (https)	0.204338	140039	5.24	0.245366	140062	4.36	83%	graph
com.twitter  (https)  [v4R] 1/0.071133s	0.205626	221191	8.23	0.004148	0	0	n/a	graph
com.youtube.www  (https)	0.195377	719377	28.15	0.194513	720073	28.32	101%	graph
gov.hhs.www  (https)	0.027728	365	0.10	0.093453	365	0.03	29%	graph
gov.nih.nlm.ncbi.account  (https)	1.391111	4738831	25.99	0.314509	4738831	115.14	443%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.031553	119140	29.32	0.031674	119140	29.32	100%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.023958	144294	47.86	0.008376	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.098400	42618	3.32	0.100010	42618	3.25	98%	graph
gov.nih.nlm.ncbi.www  (https)	0.033486	37806	8.74	0.036593	37806	8.01	92%	graph
gov.nih.nlm.support  (https)	0.197972	43801	1.70	0.002729	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.100946	34769	2.65	0.118819	34769	2.25	85%	graph
gov.nih.www  (https)	0.244488	57133	1.79	0.112453	57133	3.89	218%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.026869s  [v6R] 1/0.027436s	0.114314	42618	2.85	0.101223	42618	3.22	113%	graph
gov.usa.www  (https)	0.022595	47111	16.34	0.019168	47111	18.92	116%	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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