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 2025.09.15 -

gov.fdsys. | Government Publishing Office	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.github  (https)	0.028969	558265	152.12	0.003532	0	0	n/a	graph
com.googleapis.fonts  (https)	0.037371	1621	0.33	0.046700	1621	0.27	80%	graph
com.surveymonkey.www  (https)	0.056970	1211359	165.03	0.003384	0	0	n/a	graph
gov.ecfr.www  [v4R] 1/0.012539s	0.042099	4274	0.78	0.007599	0	0	n/a	graph
gov.ecfr.www  (https)  [v4R] 1/0.020887s	0.051036	4274	0.64	0.001207	0	0	n/a	graph
gov.fdlp  (https)	0.107639	48828	3.48	0.104318	48828	3.58	103%	graph
gov.fdlp.www	0.085988	48834	4.38	0.103630	48834	3.62	83%	graph
gov.fdlp.www  (https)	0.091994	48836	4.09	0.095064	48836	3.92	96%	graph
• gov.fdsys.www  (https)  [v4R] 1/0.082960s  [v6R] 1/0.083296s	0.159334	82189	3.94	0.177536	82189	3.54	90%	graph
gov.govinfo.api  (https)  [v4R] 1/0.448118s  [v6R] 1/0.214356s	0.744033	2029	0.02	0.510910	2029	0.03	146%	graph
gov.govinfo.www  [v4R] 1/0.039329s  [v6R] 1/0.043786s	0.124155	63375	3.90	0.121776	63375	4.00	102%	graph
gov.govinfo.www  (https)	0.089725	63375	5.43	0.051565	63375	9.48	175%	graph
gov.gpo.access.purl  [v4R] 1/0.112536s	0.135582	4710	0.27	0.003398	0	0	n/a	graph
gov.gpo.ask  (https)  [v4R] 1/0.090033s	0.374957	20232	0.41	0.003473	0	0	n/a	graph
gov.gpo.bensguide  (https)	0.000	0	0	4.205528	802	0.00	n/a	graph
gov.gpo.bookstore  (https)	0.042483	6940	1.26	0.039797	7025	1.37	109%	graph
gov.gpo.catalog	0.024864	5125	1.63	0.023938	5189	1.72	106%	graph
gov.gpo.catalog  (https)	0.038360	6938	1.39	0.051021	6981	1.04	75%	graph
gov.gpo.www  [v4R] 1/0.059767s  [v6R] 1/0.042486s	0.198252	93447	3.60	0.181116	93447	3.94	109%	graph
gov.gpo.www  (https)	0.174020	93447	4.10	0.159256	93447	4.48	109%	graph
gov.section508.www  [v4R] 1/0.020822s  [v6R] 1/0.009136s	0.343424	34643	0.77	0.028058	34643	9.44	1225%	graph
org.coretrustseal.amt  (https)	1.647969	873292	4.05	0.015735	0	0	n/a	graph
org.iso.www  [v4R] 2/0.349588s  [v6R] 2/0.198084s	0.903461	85672	0.72	0.592740	85672	1.10	153%	graph
org.iso16363.www	1.255663	104796	0.64	0.015795	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 67% of all linked domains (16/24)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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