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 2025.07.25 -

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] 1/0.051850s  [v6R] 1/0.049404s	0.172448	76873	3.41	0.132337	77008	4.45	131%	graph
com.github  (https)	0.043161	546965	97.05	0.003771	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.056243s  [v6R] 2/0.049628s	0.088218	118404	10.27	0.080842	118404	11.29	110%	graph
com.google.www  (https)	0.058217	17613	2.32	0.056856	17695	2.41	104%	graph
com.linkedin.www  (https)	0.204891	138954	5.20	0.170585	138954	6.24	120%	graph
com.twitter  (https)  [v4R] 1/0.069471s	0.223163	274205	9.38	0.004041	0	0	n/a	graph
com.youtube.www  (https)	0.155091	660699	32.52	0.211347	612776	22.16	68%	graph
gov.hhs.www  (https)	0.169213	365	0.02	0.030733	365	0.09	564%	graph
gov.nih.nlm.ncbi.account  (https)	0.222778	4671473	160.54	0.261082	4671473	136.55	85%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.048706	119140	18.94	0.042577	119140	21.64	114%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.031362	131676	32.41	0.008576	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.086915	42391	3.76	0.090591	42391	3.59	96%	graph
gov.nih.nlm.ncbi.www  (https)	0.048311	37806	6.01	0.065892	37806	4.44	74%	graph
gov.nih.nlm.support  (https)	0.155623	42673	2.10	0.001187	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.065151	35636	4.18	0.076865	35636	3.58	86%	graph
gov.nih.www  (https)	0.082495	62933	5.86	0.201472	62933	2.39	41%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.035578s  [v6R] 1/0.041816s	0.124697	42391	2.61	0.139850	42391	2.33	89%	graph
gov.usa.www  (https)	0.025040	48046	14.66	0.025034	48046	14.66	100%	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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