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 2026.02.19 -

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] 1/0.069469s  [v6R] 1/0.137420s	0.149468	80643	4.13	0.419250	389977	7.10	172%	graph
com.fontawesome.use  (https)	0.089537	27150	2.33	0.095033	27150	2.18	94%	graph
com.google.www  (https)	0.057036	17752	2.38	0.065999	17770	2.09	88%	graph
com.googleapis.fonts  (https)	0.039786	1621	0.32	0.047760	1621	0.26	83%	graph
com.gstatic.fonts  (https)	0.022752	1561	0.54	0.022849	1561	0.54	100%	graph
com.linkedin.www  (https)	0.178710	141194	6.05	0.241812	139915	4.43	73%	graph
com.twitter  (https)  [v4R] 1/0.055082s	0.193554	237084	9.37	0.004389	0	0	n/a	graph
com.youtube.www  (https)	0.177784	688028	29.66	0.206940	686151	25.41	86%	graph
gov.clinicaltrials  (https)	0.041030	94488	17.58	0.037168	94488	19.48	111%	graph
gov.hhs.www  (https)	0.093937	365	0.03	0.034769	365	0.08	274%	graph
gov.medlineplus  (https)	0.018359	26445	11.21	0.018983	26445	11.21	100%	graph
gov.medlineplus.magazine  (https)	1.875538	58141	0.24	0.008548	0	0	n/a	graph
gov.nih.nlm.ncbi.blast  (https)  [v4R] 1/0.054061s  [v6R] 1/0.029407s	0.436724	31679	0.55	0.483669	31679	0.50	90%	graph
gov.nih.nlm.ncbi.www  (https)	0.032307	37806	9.01	0.027387	37806	10.68	119%	graph
gov.nih.nlm.openi  (https)	0.000	0	0	5.573385	1939	0.00	n/a	graph
gov.nih.nlm.uts  (https)	0.088781	4596	0.40	0.062596	4596	0.57	142%	graph
gov.nih.nlm.www  (https)	0.079877	34757	3.36	0.054251	34757	4.91	146%	graph
gov.nih.www  (https)	0.102003	56936	4.26	0.075672	56936	5.79	136%	graph
• gov.nlm.www  (https)  [v4R] 1/0.090782s  [v6R] 1/0.033079s	0.167261	34757	1.59	0.107549	34757	2.48	156%	graph
gov.usa.www  (https)	0.019452	47580	19.11	0.028553	47580	12.96	68%	graph
org.purl  [v4R] 2/0.355091s	1.369582	5368	0.03	0.052414	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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