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 2025.05.31 -

gov.usability. | General Services Administration	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.facebook.www  (https)  [v4R] 1/0.067745s  [v6R] 1/0.036972s	0.170717	77184	3.46	0.113090	74788	5.05	146%	graph
com.github  (https)	0.028241	546834	149.00	0.003347	0	0	n/a	graph
com.googletagmanager.www  (https)	0.029075	1561	0.41	0.033595	1561	0.36	88%	graph
com.linkedin.www  (https)	0.284394	138931	3.73	0.158572	138931	6.71	180%	graph
com.twitter  (https)  [v4R] 1/0.050834s	0.164037	265154	12.34	0.001184	0	0	n/a	graph
com.youtube  (https)  [v4R] 1/0.046994s  [v6R] 1/0.039839s	0.215532	611956	21.72	0.280344	612505	16.69	77%	graph
gov.18f.methods  (https)	0.007504	0	0	0.003342	0	0	n/a	graph
gov.dhs.www  (https)	0.123686	105880	6.57	0.044867	105898	18.36	280%	graph
gov.digital  (https)	0.399608	56976	1.09	0.062110	56976	7.01	644%	graph
gov.gsa.18f  (https)	0.003339	0	0	0.003345	0	0	n/a	graph
gov.gsa.www  [v4R] 1/0.005066s  [v6R] 1/0.005741s	0.030590	215853	54.89	0.030311	215853	54.89	100%	graph
gov.gsa.www  (https)	0.023300	215853	71.60	0.028102	215853	58.82	82%	graph
gov.gsaig.www  (https)	0.183529	59893	2.50	0.132305	59893	3.46	139%	graph
gov.justice.www  (https)	0.041519	102017	18.98	0.042649	102017	18.53	98%	graph
gov.search  (https)	0.367146	28134	0.58	0.028411	28134	7.67	1311%	graph
gov.usa.blog  (https)	0.054919	52054	7.35	0.043186	52054	9.24	126%	graph
gov.usa.www  (https)	0.018444	47950	20.32	0.020364	47950	18.29	90%	graph
• gov.usability.www  (https)  [v4R] 1/0.038768s  [v6R] 1/0.029833s	0.419423	88696	1.62	0.049245	88696	13.81	855%	graph
IPv6 operational: 100% of linked subdomains (1/1), 78% of all linked domains (14/18)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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