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.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] 1/0.120948s	1.174599	465322	3.02	1.435281	465338	2.47	82%	graph
com.fontawesome.use  (https)	0.294738	27150	0.70	0.068577	27150	3.05	432%	graph
com.google.www  (https)	0.507396	79234	1.19	0.315612	79384	1.92	161%	graph
com.googleapis.fonts  (https)	0.053933	1621	0.23	0.067720	1621	0.18	79%	graph
com.gstatic.fonts  (https)	0.250815	1561	0.05	0.046960	1561	0.26	543%	graph
com.linkedin.www  (https)	0.405273	141175	2.66	0.203390	141175	5.31	200%	graph
com.twitter  (https)  [v4R] 1/0.069094s	0.452012	244522	4.13	0.003031	0	0	n/a	graph
com.youtube.www  (https)	0.279514	692717	18.94	0.277881	691666	19.05	101%	graph
gov.clinicaltrials  (https)	0.049968	94241	14.67	0.149679	94241	4.83	33%	graph
gov.hhs.www  (https)	0.057584	365	0.05	0.050075	365	0.06	114%	graph
gov.medlineplus  (https)	0.054661	26445	3.74	0.042233	26445	4.80	129%	graph
gov.medlineplus.magazine  (https)	0.000	0	0	0.010473	0	0	n/a	graph
gov.nih.nlm.ncbi.blast  (https)  [v4R] 1/0.068461s  [v6R] 1/0.076211s	0.428898	31675	0.56	0.255974	31675	0.95	168%	graph
gov.nih.nlm.ncbi.www  (https)	0.040482	37806	7.21	0.062852	37806	4.65	65%	graph
gov.nih.nlm.openi  (https)	0.077213	1939	0.19	1.823632	1939	0.01	4%	graph
gov.nih.nlm.uts  (https)	0.154983	4596	0.23	0.097628	4596	0.36	159%	graph
gov.nih.nlm.www  (https)	0.293541	34757	0.91	0.091250	34757	2.91	322%	graph
gov.nih.www  (https)	0.046323	59592	9.88	0.003035	0	0	n/a	graph
• gov.nlm.www  (https)  [v4R] 1/0.098235s  [v6R] 1/0.063266s	0.202867	34757	1.31	0.154924	34757	1.72	131%	graph
gov.usa.www  (https)	0.501001	47231	0.72	0.272750	47231	1.32	184%	graph
org.purl  [v4R] 2/0.783672s	2.695529	5368	0.02	0.028878	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 81% of all linked domains (17/21)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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