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.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)	0.040677	204	0.04	0.030762	204	0.05	133%	graph
com.facebook.www  [v4R] 1/0.011736s  [v6R] 1/0.011820s	0.348287	424899	9.32	0.464385	422790	6.95	75%	graph
com.facebook.www  (https)	0.387109	422379	8.33	0.503881	425069	6.45	77%	graph
com.googleapis.fonts  (https)	0.043195	1621	0.29	0.058694	1621	0.21	74%	graph
com.googletagmanager.www  (https)	0.056612	1561	0.21	0.054873	1561	0.22	104%	graph
com.instagram  (https)  [v4R] 1/0.051669s  [v6R] 1/0.276140s	0.585115	395968	5.16	0.909526	396159	3.33	64%	graph
com.linkedin.www  (https)	0.229756	141608	4.72	0.214644	141608	5.05	107%	graph
com.pinterest  [v4R] 2/0.044249s	0.259845	949300	27.96	0.005204	0	0	n/a	graph
com.twitter	0.070976	16	0.00	0.002336	0	0	n/a	graph
com.youtube.www  [v4R] 1/0.025893s  [v6R] 1/0.037134s	0.280709	818124	22.29	0.315308	835146	20.23	91%	graph
gov.govinfo.www  (https)	0.076749	65655	6.59	0.075797	65655	6.68	101%	graph
gov.gpo.bensguide  [v4R] 1/0.272339s  [v6R] 1/0.048396s	0.377544	21071	0.43	0.165480	21071	0.97	228%	graph
gov.gpo.bookstore  (https)	0.049241	5365	0.84	0.041587	5429	1.01	121%	graph
gov.gpo.catalog	0.015124	4542	2.31	0.023856	4567	1.51	66%	graph
gov.gpo.catalog  (https)	0.082516	4542	0.42	0.050633	4567	0.70	165%	graph
gov.gpo.govbooktalk  (https)	0.098554	279135	21.73	0.010496	0	0	n/a	graph
gov.gpo.www  [v4R] 1/0.042060s  [v6R] 1/0.045998s	0.134153	94676	5.39	0.372398	94676	1.94	36%	graph
• gov.gpo.www  (https)	0.080502	94676	9.03	0.087580	94676	8.30	92%	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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