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 2026.07.21 -

gov.cdc. | 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)	0.337308	422477	9.56	0.704149	423401	4.59	48%	graph
com.instagram.www  (https)	0.429972	395858	7.04	0.416304	396086	7.26	103%	graph
com.linkedin.www  (https)	0.336240	141608	3.22	0.238054	141608	4.54	141%	graph
com.pinterest.www  (https)	1.249276	949656	5.80	0.003035	0	0	n/a	graph
com.snapchat.www  (https)	0.061116	45101	5.64	0.003031	0	0	n/a	graph
com.twitter  (https)  [v4R] 1/0.074875s	0.322563	266111	6.31	0.004117	0	0	n/a	graph
com.youtube.www  (https)	0.241994	833387	26.38	0.301079	816593	20.70	78%	graph
gov.cdc.archive  (https)	1.095948	750	0.01	0.316013	750	0.02	347%	graph
gov.cdc.jobs  (https)	0.308488	84909	2.10	0.137399	84909	4.73	225%	graph
gov.cdc.stacks  (https)	0.084276	41642	3.78	0.097214	41642	3.28	87%	graph
• gov.cdc.www  (https)  [v4R] 1/0.069362s  [v6R] 1/0.248243s	0.096374	61013	4.85	0.269203	61013	1.73	36%	graph
gov.cdc.wwwnc  (https)  [v4R] 2/0.168517s  [v6R] 2/0.199789s	0.230739	61013	2.02	0.252184	61013	1.85	91%	graph
gov.hhs  (https)  [v4R] 1/0.249228s	0.976925	365	0.00	0.008501	0	0	n/a	graph
gov.hhs.oig  (https)	0.232922	49840	1.64	0.052261	0	0	n/a	graph
gov.hhs.www  (https)	0.043845	365	0.06	0.311532	365	0.01	14%	graph
gov.usa  (https)  [v4R] 1/0.042060s  [v6R] 1/0.029841s	0.080362	47199	4.50	1.579098	47199	0.23	5%	graph
IPv6 operational: 100% of linked subdomains (5/5), 69% of all linked domains (11/16)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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