gov.airnow.

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 2025.07.19 -

gov.airnow. | Environmental Protection Agency v4[s] v4[B] v4[Mbps] v6[s] v6[B] v6[Mbps] 6/4[Mbps] v4|v6
com.cloudflare.cdnjs  (https)
0.03837488911.790.04262488911.6290%graph
com.facebook.www  (https)  [v6R] 1/0.040291s
0.173666780863.440.121661779774.92143%graph
com.googletagmanager.www  (https)
0.03680515610.330.03412515610.35106%graph
com.servicenowservices.usepa  (https)  [v4R] 1/0.190087s
0.303986251340.630.00752000n/agraph
com.twitter  (https)  [v4R] 1/0.065886s
0.2387572738168.780.01160000n/agraph
com.unpkg  (https)
0.040231232124.430.037068232124.79108%graph
gov.airnow.fire  (https)
0.03428922350.500.03028822350.57113%graph
gov.airnow.www  (https)
0.4141791007191.860.03184210071924.791335%graph
gov.epa.gispub  (https)  [v4R] 1/0.121352s
0.13795638120.210.00000n/agraph
gov.epa.www  (https)
0.0221866175821.420.0175566175827.72129%graph
gov.epa.www3  (https)  [v4R] 1/0.093026s  [v6R] 1/0.079659s
0.135260617583.490.107667617584.40126%graph
info.enviroflash.feeds  (https)
0.082286106320.990.00762300n/agraph
info.enviroflash.www  [v4R] 1/0.030304s
0.12267880710.500.00122800n/agraph
info.enviroflash.www  (https)
0.08874880710.700.00010200n/agraph
net.jsdelivr.cdn  (https)  [v4R] 1/0.031635s  [v6R] 1/0.019336s
0.195694468071.830.059133468076.05331%graph
org.airnowapi.docs  (https)
0.11415442030.280.00121300n/agraph
IPv6 operational: 100% of linked subdomains (2/2), 56% of all linked domains (9/16)v4[s]v4[B]v4[Mbps]v6[s]v6[B]v6[Mbps]6/4[Mbps]v4|v6

For comments, questions or suggested domains please contact: itrg-contact@list.nist.gov