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 2025.09.18 -

gov.selectagents. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.responsibledisclosure.hhs  (https)  [v4R] 2/0.249277s	0.266817	6616	0.19	0.007707	0	0	n/a	graph
gov.cdc.www  (https)	0.072802	59519	6.31	0.051958	59519	8.90	141%	graph
gov.cdc.wwwn  (https)	0.056158	0	0	0.080501	0	0	n/a	graph
gov.hhs.oig  (https)	0.046879	35906	5.96	0.003437	0	0	n/a	graph
gov.hhs.www  (https)	0.031729	365	0.09	0.046437	365	0.06	67%	graph
gov.nih.od.osp  (https)	0.505477	54144	0.82	0.500125	54144	0.83	101%	graph
gov.oversight.usdaoig  (https)	0.632155	67097	0.81	0.523043	67097	0.98	121%	graph
gov.selectagents.efsap  (https)  [v4R] 4/0.417984s	0.585911	87121	1.14	0.015746	0	0	n/a	graph
• gov.selectagents.www  (https)	0.171768	70687	3.15	0.058106	70687	9.30	295%	graph
IPv6 operational: 50% of linked subdomains (1/2), 56% of all linked domains (5/9)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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