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 2026.02.21 -

gov.gpo. | Government Publishing Office	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.bootstrapcdn.maxcdn  (https)	0.036798	204	0.04	0.099680	204	0.02	36%	graph
com.facebook.www  [v4R] 1/0.007560s  [v6R] 1/0.007010s	0.321017	437754	10.40	0.250792	451703	13.78	132%	graph
com.facebook.www  (https)	0.296815	457772	11.80	0.253050	458091	13.81	117%	graph
com.googleapis.fonts  (https)	0.038506	1621	0.33	0.044693	1621	0.28	86%	graph
com.googletagmanager.www  (https)	0.030434	1561	0.40	0.048892	1561	0.25	62%	graph
com.instagram  (https)  [v4R] 1/0.042194s  [v6R] 1/0.043980s	0.372060	586231	12.02	0.477862	586300	9.38	78%	graph
com.linkedin.www  (https)	0.205637	141194	5.25	0.142974	141565	7.61	145%	graph
com.pinterest  [v4R] 2/0.024868s	0.277514	736754	20.29	0.008400	0	0	n/a	graph
com.twitter	0.047521	15	0.00	0.002781	0	0	n/a	graph
com.youtube.www  [v4R] 1/0.087713s  [v6R] 1/0.051015s	0.333631	682485	15.64	0.241571	682728	21.61	138%	graph
gov.govinfo.www  (https)	0.045181	63219	10.72	0.046411	63219	10.49	98%	graph
gov.gpo.bensguide  [v6R] 1/0.031328s	0.000	0	0	4.237406	802	0.00	n/a	graph
gov.gpo.bookstore  (https)	0.065318	7003	0.82	0.055065	7088	0.98	120%	graph
gov.gpo.catalog	0.014198	4542	2.48	0.012021	4567	2.90	117%	graph
gov.gpo.catalog  (https)	0.035554	4542	0.99	0.036180	4567	0.97	98%	graph
gov.gpo.govbooktalk  (https)	0.032407	279075	66.54	0.003041	0	0	n/a	graph
gov.gpo.www  [v4R] 1/0.033287s  [v6R] 1/0.043647s	0.101278	94912	7.17	0.117056	94912	6.19	86%	graph
• gov.gpo.www  (https)	0.064633	94912	11.31	0.066175	94912	10.97	97%	graph
IPv6 operational: 86% of linked subdomains (6/7), 83% of all linked domains (15/18)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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