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 2026.07.21 -

gov.vaccines. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.googletagmanager.www  (https)	0.047628	1561	0.25	0.272305	1561	0.04	17%	graph
gov.cdc.www  (https)  [v4R] 1/0.104373s  [v6R] 1/0.103281s	0.185716	61013	2.52	0.356501	61013	1.31	52%	graph
gov.hhs.www  (https)	0.073286	365	0.04	1.116861	365	0.00	7%	graph
• gov.vaccines.www  (https)  [v4R] 1/1.196215s  [v6R] 1/0.043682s	1.300026	43719	0.26	0.069263	43719	4.83	1884%	graph
IPv6 operational: 100% of linked subdomains (1/1), 100% of all linked domains (4/4)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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