EDNS Compliance Tester

Checking: 'highlandarrow.com' as at 2026-01-12T19:17:29Z

highlandarrow.com. @38.143.59.203 (ns1.highlandarrow.com.): dns=ok zflag=ok edns=ok edns1=ok edns@512=ok,notc ednsopt=ok edns1opt=ok do=ok ednsflags=ok docookie=ok,cookie edns512tcp=ok optlist=ok,expire,cookie,subnet

All Ok

Codes

ok - test passed.
expire - EDNS EXPIRE supported [RFC7314].
subnet - EDNS Client Subnet supported [RFC7871].
cookie - EDNS COOKIE supported [RFC7873].

To retrieve this report in the future: https://ednscomp.isc.org/ednscomp/ead5783054

The source code for the tester can be downloaded from ISC Open Source Projects / DNS-Compliance-Testing.

For more information about EDNS please see the main site.