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 2026.01.26 -

gov.nlm. | 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] 1/0.139897s  [v6R] 1/0.107581s	0.294605	81847	2.12	0.303438	82004	2.06	97%	graph
com.fontawesome.use  (https)	0.088804	27150	2.35	0.126408	27150	1.64	70%	graph
com.google.www  (https)	0.065689	17715	2.08	0.060708	17636	2.24	108%	graph
com.googleapis.fonts  (https)	0.037232	1621	0.33	0.034773	1621	0.36	109%	graph
com.gstatic.fonts  (https)	0.025423	1561	0.48	0.024275	1561	0.50	104%	graph
com.linkedin.www  (https)	0.240806	141119	4.49	0.212759	141119	5.08	113%	graph
com.twitter  (https)  [v4R] 1/0.072976s	0.220888	233452	8.10	0.006015	0	0	n/a	graph
com.youtube.www  (https)	0.164277	666031	30.98	0.180874	672239	28.49	92%	graph
gov.clinicaltrials  (https)	0.034561	94488	21.20	0.038147	94488	18.97	89%	graph
gov.hhs.www  (https)	0.043401	365	0.06	0.062261	365	0.04	69%	graph
gov.medlineplus  (https)	0.030096	26445	6.73	0.018069	26445	11.21	167%	graph
gov.medlineplus.magazine  (https)	1.947973	58329	0.23	0.010670	0	0	n/a	graph
gov.nih.nlm.ncbi.blast  (https)  [v4R] 1/0.028541s  [v6R] 1/0.029380s	0.203704	31679	1.19	0.207854	31679	1.17	98%	graph
gov.nih.nlm.ncbi.www  (https)	0.032889	37806	9.01	0.035368	37806	8.24	91%	graph
gov.nih.nlm.openi  (https)	0.036384	1939	0.41	0.040152	1939	0.37	90%	graph
gov.nih.nlm.uts  (https)	0.152714	4596	0.23	0.056083	4596	0.63	271%	graph
gov.nih.nlm.www  (https)	0.073482	34757	3.63	0.087306	34757	3.05	84%	graph
gov.nih.www  (https)	0.102205	56910	4.26	0.068836	56910	6.39	150%	graph
• gov.nlm.www  (https)  [v4R] 1/0.137416s  [v6R] 1/0.036967s	0.212042	34757	1.25	0.115015	34757	2.31	184%	graph
gov.usa.www  (https)	0.033413	46894	10.84	0.032834	46894	11.18	103%	graph
org.purl  [v4R] 2/0.359862s	1.375671	5368	0.03	0.053638	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 86% of all linked domains (18/21)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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