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 2026.03.17 -

gov.healthit. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.googleapis.fonts  (https)	0.580221	1621	0.02	0.289104	1621	0.04	201%	graph
com.linkedin.www  (https)	1.301610	141215	0.83	0.412609	141175	2.61	316%	graph
com.x  (https)	0.163059	238714	11.17	0.003029	0	0	n/a	graph
com.youtube.www  [v4R] 1/0.036749s  [v6R] 1/0.035665s	0.429495	682374	12.14	0.545222	684621	9.58	79%	graph
gov.healthdata  (https)	1.340033	832000	4.74	0.002756	0	0	n/a	graph
gov.healthit  (https)	1.269314	413217	2.48	0.053399	0	0	n/a	graph
gov.healthit.chpl  (https)	0.284220	15133	0.41	0.005226	0	0	n/a	graph
gov.healthit.ecqi  (https)	0.268989	87029	2.48	0.080183	87029	8.30	335%	graph
gov.healthit.inquiry  (https)  [v4R] 3/0.134728s	0.462522	75941	1.25	0.005205	0	0	n/a	graph
gov.healthit.isp  (https)	0.040277	118	0.02	0.004120	0	0	n/a	graph
gov.healthit.site  (https)	0.136963	124550	6.99	0.006307	0	0	n/a	graph
• gov.healthit.www  (https)  [v4R] 1/0.365193s	0.457618	413217	6.90	0.052393	0	0	n/a	graph
gov.hhs  (https)  [v4R] 1/0.462855s	0.506752	365	0.01	0.007404	0	0	n/a	graph
gov.hhs.www	0.024593	365	0.12	0.026353	365	0.11	92%	graph
gov.hhs.www  (https)	0.043028	365	0.06	0.039693	363	0.07	110%	graph
gov.usa.gobierno  (https)  [v4R] 1/0.220870s  [v6R] 1/0.395594s	0.269521	48510	1.38	0.445998	48510	0.83	60%	graph
IPv6 operational: 14% of linked subdomains (1/7), 44% of all linked domains (7/16)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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