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.floodsmart. | Department of Homeland Security	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.facebook.www  (https)	0.367850	422321	8.78	0.471004	426144	6.90	79%	graph
com.googletagmanager.www  (https)	0.052541	1561	0.23	0.044809	1561	0.27	118%	graph
com.govdelivery.public  (https)  [v4R] 1/0.059015s  [v6R] 1/0.304467s	0.090252	7681	0.65	0.339819	7681	0.17	27%	graph
com.instagram.www  (https)	0.491166	395940	6.15	0.555716	396170	5.45	89%	graph
com.linkedin.www  (https)	0.491972	141608	2.20	0.224328	141608	4.82	219%	graph
com.unpkg  (https)	0.352479	41606	0.90	0.119426	41606	2.67	296%	graph
com.x  (https)	0.233641	266111	8.71	0.010645	0	0	n/a	graph
com.youtube.www  (https)	0.497848	815261	12.51	0.257491	813574	24.15	193%	graph
gov.dhs  (https)  [v4R] 1/0.054524s  [v6R] 1/1.083298s	0.127840	91904	5.52	1.159888	91917	0.61	11%	graph
gov.disasterassistance  (https)  [v4R] 1/0.071891s  [v6R] 1/0.327320s	0.144893	121530	6.44	0.416257	121530	2.23	35%	graph
gov.fema  (https)  [v4R] 1/0.063501s  [v6R] 1/0.083792s	0.167688	122128	5.58	0.167312	122128	5.58	100%	graph
gov.fema.msc  (https)  [v4R] 1/0.070186s	0.207835	36662	1.35	0.006321	0	0	n/a	graph
gov.fema.www  (https)	0.317897	122128	2.94	0.074671	122128	12.59	428%	graph
gov.floodsmart  (https)  [v4R] 1/0.089642s  [v6R] 1/0.070811s	0.251072	94584	2.87	2.404716	94584	0.30	10%	graph
gov.floodsmart.agents  (https)	0.232821	71858	2.36	0.121595	71858	4.53	192%	graph
• gov.floodsmart.www  (https)	0.337947	94584	2.14	0.126335	94584	5.73	267%	graph
gov.ready  (https)  [v4R] 1/0.061376s  [v6R] 1/0.071951s	0.157674	54311	2.64	0.139771	54311	2.98	113%	graph
gov.usa  (https)  [v4R] 1/0.044256s  [v6R] 1/0.040383s	0.077610	47199	4.68	0.095178	47199	3.79	81%	graph
IPv6 operational: 100% of linked subdomains (3/3), 89% of all linked domains (16/18)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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