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.americaslibrary. | Library of Congress	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.apple.itunes  (https)  [v4R] 1/0.095024s  [v6R] 1/0.102583s	0.133187	130146	7.47	0.146688	130146	6.80	91%	graph
com.facebook.www  (https)	0.304201	452191	11.35	0.274715	451530	12.57	111%	graph
com.flickr  (https)	0.044995	44780	7.76	0.004115	0	0	n/a	graph
com.flickr.www  (https)	0.043840	44780	7.95	0.047781	44780	7.27	91%	graph
com.imaginationlibrary  (https)	0.064942	156439	18.65	0.053016	156439	22.52	121%	graph
com.instagram  (https)  [v4R] 1/0.058302s  [v6R] 1/0.052540s	0.474628	591384	9.52	0.490337	586204	9.13	96%	graph
com.myshopify.library-of-congress-shop  (https)	0.305013	228069	5.71	0.615826	228069	2.83	50%	graph
com.pinterest.www  (https)	0.147053	750493	38.95	0.006470	0	0	n/a	graph
com.x  (https)	0.123749	237018	14.70	0.004227	0	0	n/a	graph
com.youtube.www  (https)	0.199753	685966	26.30	0.193105	689676	27.26	104%	graph
• gov.americaslibrary.www  (https)  [v4R] 1/0.089985s  [v6R] 1/0.043022s	0.142236	120949	6.50	0.088079	120949	10.49	161%	graph
gov.congress.www  (https)	0.034978	6960	1.56	0.061888	7066	0.88	57%	graph
gov.copyright  [v4R] 1/0.047977s  [v6R] 1/0.034135s	0.083038	55484	5.10	0.072961	55484	5.88	115%	graph
gov.copyright  (https)	0.044948	55484	9.62	0.059170	55484	7.17	75%	graph
gov.loc  (https)  [v4R] 1/0.048812s  [v6R] 1/0.049084s	0.153895	88763	4.43	0.169686	88763	4.01	91%	graph
gov.loc.ask  (https)	0.094454	46437	3.77	0.009678	0	0	n/a	graph
gov.loc.blogs  (https)	0.051677	52984	7.93	0.048439	52984	8.42	106%	graph
gov.loc.catalog  (https)	0.044859	29967	5.20	0.050836	29967	4.57	88%	graph
gov.loc.chroniclingamerica  (https)  [v4R] 2/0.080968s  [v6R] 2/0.102790s	0.106536	600465	43.22	0.135181	600465	33.93	79%	graph
gov.loc.guides  (https)	0.053525	26716	3.85	0.077663	26716	2.65	69%	graph
gov.loc.newsroom  (https)	0.034241	919	0.21	0.028776	919	0.25	121%	graph
gov.loc.www  [v4R] 1/0.057095s  [v6R] 1/0.068141s	0.106442	195085	14.04	0.118110	195085	12.61	90%	graph
gov.loc.www  (https)	0.067166	195085	22.21	0.051077	195085	29.18	131%	graph
gov.read  (https)	0.142452	17666	0.95	0.143174	17666	0.94	99%	graph
net.research.www  (https)	0.066868	246394	28.48	0.010748	0	0	n/a	graph
org.purl  [v4R] 2/0.405305s	1.419855	5368	0.03	0.040314	0	0	n/a	graph
IPv6 operational: 100% of linked subdomains (1/1), 77% of all linked domains (20/26)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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