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 2026.03.26 -

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)	0.588574	464806	6.03	0.350410	462844	10.09	167%	graph
com.googletagmanager.www  (https)	0.034718	1561	0.35	0.056803	1561	0.21	61%	graph
com.govdelivery.public  (https)  [v4R] 1/0.185898s  [v6R] 1/0.186358s	0.248824	7656	0.24	0.254534	7656	0.23	98%	graph
com.instagram.www  (https)	0.447779	601950	10.27	0.503829	602074	9.13	89%	graph
com.linkedin.www  (https)	0.170437	141175	6.34	0.282841	141175	3.82	60%	graph
com.unpkg  (https)	0.533114	23212	0.33	0.080541	23212	2.21	666%	graph
com.x  (https)	0.160532	244940	11.68	0.004115	0	0	n/a	graph
com.youtube.www  (https)	0.256837	699553	20.85	0.276050	693527	19.17	92%	graph
gov.dhs  (https)  [v4R] 1/1.088706s  [v6R] 1/0.063723s	1.172450	297586	1.94	0.154630	297612	14.74	761%	graph
gov.disasterassistance  (https)  [v4R] 1/0.052615s  [v6R] 1/0.064634s	0.116231	119630	7.87	0.207126	119630	4.41	56%	graph
gov.fema  (https)  [v4R] 1/0.061051s  [v6R] 1/0.080606s	0.387919	120616	2.38	0.793990	120616	1.16	49%	graph
gov.fema.msc  (https)  [v4R] 1/0.078231s	0.224042	36662	1.25	0.006351	0	0	n/a	graph
gov.fema.www  (https)	0.048194	120616	19.17	0.299852	120616	3.08	16%	graph
gov.floodsmart  (https)  [v4R] 1/1.066457s  [v6R] 1/0.349811s	1.260537	95451	0.58	0.600486	95451	1.21	210%	graph
gov.floodsmart.agents  (https)	0.271922	72032	2.03	0.203703	72032	2.71	133%	graph
• gov.floodsmart.www  (https)	0.440008	95451	1.66	0.197644	95451	3.70	223%	graph
gov.ready  (https)  [v4R] 1/0.075104s  [v6R] 1/1.102207s	0.410627	53288	0.99	1.157745	53288	0.35	35%	graph
gov.usa  (https)  [v4R] 1/0.045388s  [v6R] 1/0.247200s	0.077083	47231	4.68	1.326215	47231	0.27	6%	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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