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 2026.01.04 -

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] 1/0.062289s  [v6R] 1/0.060377s	0.155241	87875	4.33	0.185343	88009	3.63	84%	graph
com.github  (https)	0.028367	562278	153.21	0.004108	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.100616s  [v6R] 2/0.053230s	0.129522	118475	7.01	0.081088	118475	11.16	159%	graph
com.google.www  (https)	0.052760	17741	2.60	0.047850	17724	2.88	111%	graph
com.linkedin.www  (https)	0.203904	138797	5.22	0.144149	140076	7.42	142%	graph
com.twitter  (https)  [v4R] 1/0.050679s	0.168611	230565	10.47	0.003035	0	0	n/a	graph
com.youtube.www  (https)	0.206338	687883	25.48	0.165991	688847	31.85	125%	graph
gov.hhs.www  (https)	0.036000	363	0.08	0.059902	365	0.05	61%	graph
gov.nih.nlm.ncbi.account  (https)	0.252642	4761617	144.16	0.253744	4761617	143.59	100%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.035838	119140	25.97	0.031679	119140	29.32	113%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.026117	147896	43.40	0.024153	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.090050	42454	3.60	0.080989	42454	4.05	113%	graph
gov.nih.nlm.ncbi.www  (https)	0.028802	37806	10.30	0.039328	37806	7.40	72%	graph
gov.nih.nlm.support  (https)	0.218833	43663	1.53	0.002329	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.091025	34757	2.91	0.086409	34757	3.08	106%	graph
gov.nih.www  (https)	0.311163	56803	1.39	0.138519	56803	3.14	225%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.025928s  [v6R] 1/0.030192s	0.118592	42454	2.74	0.107747	42454	3.03	110%	graph
gov.usa.www  (https)	0.035386	47068	10.26	0.047302	47068	7.64	74%	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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