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 2025.12.16 -

gov.mentalhealth. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.cloudflare.cdnjs  (https)	0.061056	8891	1.11	0.041949	8891	1.65	149%	graph
com.facebook.www  (https)  [v4R] 1/0.047348s  [v6R] 1/0.142765s	0.117738	83472	5.44	0.340553	83617	1.88	34%	graph
com.googletagmanager.www  (https)	0.029909	1561	0.41	0.029596	1561	0.41	100%	graph
com.instagram.www  (https)	0.258315	819730	24.24	0.312475	807818	19.75	81%	graph
com.linkedin.www  (https)	0.359902	140057	2.98	0.238767	140062	4.49	151%	graph
com.x  (https)	0.121386	226581	14.29	0.003033	0	0	n/a	graph
com.youtube  (https)  [v4R] 1/0.043217s  [v6R] 1/0.038484s	0.249362	695559	21.31	0.262794	696718	20.29	95%	graph
com.youtube.www  (https)	0.276230	700055	19.35	0.231932	699708	23.11	119%	graph
gov.findtreatment  (https)	0.119502	4539	0.29	0.120354	4539	0.29	99%	graph
gov.gpo.orders  (https)	2.219101	139795	0.48	3.260876	139795	0.33	68%	graph
gov.hhs.oig  (https)	0.133735	38783	2.22	0.002736	0	0	n/a	graph
gov.hhs.www  (https)	0.033550	365	0.08	0.075387	363	0.04	44%	graph
• gov.mentalhealth.www  (https)  [v4R] 1/0.039402s	0.188998	794988	32.26	0.010561	0	0	n/a	graph
gov.samhsa.datatools  (https)	0.091783	3903	0.33	0.008398	0	0	n/a	graph
gov.samhsa.dpt2  (https)	0.059223	6853	0.89	0.008865	0	0	n/a	graph
gov.samhsa.intranet  (https)	0.000	0	0	0.006303	0	0	n/a	graph
gov.samhsa.library  (https)	0.110952	249046	17.27	0.008388	0	0	n/a	graph
gov.samhsa.www  (https)	0.148367	787436	40.59	0.004114	0	0	n/a	graph
gov.usa.www  (https)	0.020579	47100	17.97	0.021159	47100	17.11	95%	graph
net.veteranscrisisline.www  (https)	0.055248	24077	3.34	0.091394	24077	2.02	60%	graph
org.988lifeline  (https)	0.094598	310260	25.18	0.076318	310260	31.15	124%	graph
IPv6 operational: 0% of linked subdomains (0/1), 62% of all linked domains (13/21)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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