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 2025.09.16 -

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] 1/0.109764s  [v6R] 1/0.136737s	0.309032	77985	1.93	0.333110	78126	1.79	93%	graph
com.fontawesome.use  (https)	0.087462	27150	2.38	0.096085	27150	2.16	91%	graph
com.google.www  (https)	0.050870	17009	2.60	0.060583	16946	2.15	83%	graph
com.googleapis.fonts  (https)	0.049940	1621	0.25	0.038142	1621	0.33	129%	graph
com.gstatic.fonts  (https)	0.024007	1561	0.50	0.024216	1561	0.50	100%	graph
com.linkedin.www  (https)	0.166708	138894	6.38	0.207101	138894	5.12	80%	graph
com.twitter  (https)  [v4R] 1/0.077613s	0.188411	220915	8.97	0.001188	0	0	n/a	graph
com.youtube.www  (https)	0.194179	658337	25.89	0.175306	656709	28.63	111%	graph
gov.clinicaltrials  (https)	0.045924	85758	14.54	0.046894	85758	14.22	98%	graph
gov.hhs.www  (https)	0.029694	365	0.10	0.047907	365	0.06	62%	graph
gov.medlineplus  (https)	0.037652	26542	5.47	0.035176	26542	5.79	106%	graph
gov.medlineplus.magazine  (https)	1.280407	58074	0.35	0.003357	0	0	n/a	graph
gov.nih.nlm.ncbi.blast  (https)  [v4R] 1/0.043209s  [v6R] 1/0.033989s	0.369854	31654	0.65	0.199504	31654	1.21	185%	graph
gov.nih.nlm.ncbi.www  (https)	0.036931	37806	8.01	0.042174	37806	6.87	86%	graph
gov.nih.nlm.openi  (https)	0.043946	1146	0.20	0.041706	1146	0.21	105%	graph
gov.nih.nlm.uts  (https)	0.108278	4596	0.32	0.053638	4596	0.66	204%	graph
gov.nih.nlm.www  (https)	0.069505	34773	3.84	0.062013	34773	4.28	111%	graph
gov.nih.www  (https)	0.121823	57119	3.60	0.063791	57119	6.92	192%	graph
• gov.nlm.www  (https)  [v4R] 1/0.054616s  [v6R] 1/0.031807s	0.113486	34773	2.35	0.097874	34773	2.74	116%	graph
gov.usa.www  (https)	0.030888	47992	12.20	0.029732	47992	12.63	103%	graph
org.purl  [v4R] 2/0.353952s	1.368758	5368	0.03	0.031995	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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