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 2025.11.26 -

gov.nih. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.facebook.www  (https)  [v4R] 1/0.123295s	0.334463	76420	1.75	0.104138	79825	5.86	335%	graph
com.flickr.www  (https)	0.037373	46991	9.69	0.034981	46991	10.54	109%	graph
com.googletagmanager.www  (https)	0.030913	1561	0.40	0.028288	1561	0.43	107%	graph
com.instagram.www  (https)	0.219344	751296	26.17	0.304503	751586	18.86	72%	graph
com.twitter  (https)  [v4R] 1/0.053454s	0.170098	220677	9.90	0.002560	0	0	n/a	graph
com.youtube.www  (https)	0.207815	715894	26.39	0.145549	716399	37.69	143%	graph
gov.hhs.oig  (https)	0.139749	39799	2.18	0.006324	0	0	n/a	graph
gov.hhs.www	0.011292	365	0.25	0.023280	365	0.12	48%	graph
gov.hhs.www  (https)	0.046915	365	0.06	0.038295	365	0.07	121%	graph
gov.medlineplus  (https)	0.033521	26542	6.14	0.034933	26542	5.96	97%	graph
gov.nih.calendar  (https)	0.125441	10093	0.62	0.075475	10093	1.03	167%	graph
gov.nih.dpcpsi  (https)	0.166081	76879	3.53	0.089396	76879	6.59	187%	graph
gov.nih.education.science  (https)	0.091975	192356	16.13	0.024323	0	0	n/a	graph
gov.nih.eeo  (https)	0.054430	5448	0.77	0.078442	5473	0.54	70%	graph
gov.nih.grants  (https)	0.090540	71834	6.09	0.109462	71834	5.03	83%	graph
gov.nih.heal  (https)	0.050891	60993	9.31	0.023002	0	0	n/a	graph
gov.nih.hr  (https)	0.104967	29207	2.14	0.092189	29207	2.42	113%	graph
gov.nih.irp  (https)	0.247112	73478	2.27	0.147926	73478	3.81	168%	graph
gov.nih.jobs.www  (https)	0.123327	5448	0.34	0.041218	5473	1.02	301%	graph
gov.nih.lrp.www  (https)  [v4R] 1/0.099299s  [v6R] 1/0.103961s	0.308571	76074	1.88	0.295504	76074	1.97	104%	graph
gov.nih.newsinhealth  (https)	0.131037	29695	1.73	0.105613	29695	2.16	125%	graph
gov.nih.nhlbi.www  (https)	0.066084	92820	10.73	0.062898	92820	11.42	106%	graph
gov.nih.od.nexus  (https)  [v4R] 1/0.082930s  [v6R] 1/0.096900s	0.243795	113598	3.57	0.246162	113598	3.52	99%	graph
gov.nih.salud  (https)	0.137672	69965	3.90	0.093664	69965	5.74	147%	graph
gov.nih.www  [v4R] 1/0.049757s  [v6R] 1/0.050484s	0.185216	57133	2.36	0.130719	57133	3.35	142%	graph
• gov.nih.www  (https)	0.119665	57133	3.66	0.142091	57133	3.07	84%	graph
gov.usa.www  (https)	1.072011	47111	0.34	0.023044	47111	15.63	4661%	graph
org.recovercovid  (https)	0.123330	286504	17.77	0.030199	0	0	n/a	graph
IPv6 operational: 88% of linked subdomains (14/16), 82% of all linked domains (23/28)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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