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 2025.12.13 -

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] 1/0.061438s  [v6R] 1/0.119178s	0.145017	82242	4.33	0.307121	82346	2.05	47%	graph
com.github  (https)	0.038804	562017	112.84	0.004139	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.056765s  [v6R] 2/0.086485s	0.086763	118475	10.51	0.116066	118475	7.79	74%	graph
com.google.www  (https)	0.056593	17848	2.43	0.053154	17891	2.58	106%	graph
com.linkedin.www  (https)	0.286308	140061	3.74	0.198819	140062	5.40	144%	graph
com.twitter  (https)  [v4R] 1/0.057310s	0.161149	226622	10.74	0.003033	0	0	n/a	graph
com.youtube.www  (https)	0.217957	697723	24.53	0.195388	700322	27.40	112%	graph
gov.hhs.www  (https)	0.033886	365	0.08	0.063280	365	0.04	52%	graph
gov.nih.nlm.ncbi.account  (https)	0.244684	4748194	148.47	0.242119	4748194	149.69	101%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.029275	119140	31.34	0.030595	119140	30.30	97%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.029928	147125	38.71	0.024465	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.094552	42264	3.43	0.093889	42264	3.47	101%	graph
gov.nih.nlm.ncbi.www  (https)	0.029604	37806	9.95	0.036684	37806	8.01	81%	graph
gov.nih.nlm.support  (https)	0.225807	43649	1.48	0.002270	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.378470	34769	0.70	0.073994	34769	3.63	518%	graph
gov.nih.www  (https)	0.236685	56210	1.82	0.116766	56210	3.70	203%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.035409s  [v6R] 1/0.028304s	0.128312	42264	2.52	0.109849	42264	2.96	117%	graph
gov.usa.www  (https)	0.029595	47100	12.39	0.026172	47100	13.82	112%	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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