| challenge.gov | SOA | 9513 | | dns.gsa.gov hostmaster@gsa.gov 757900428 3600 180 1209600 3600 |
| challenge.gov | NS | 10800 | | dns3.gsa.gov |
| challenge.gov | NS | 10800 | | dns.gsa.gov |
| challenge.gov | NS | 10800 | | dns2.gsa.gov |
| challenge.gov | NS | 10800 | | dns4.gsa.gov |
| challenge.gov | NS | 10800 | | dns5.gsa.gov |
| challenge.gov | A | 10571 | | 159.142.191.107 |
| challenge.gov | MX | 10800 | 5 | alt2.aspmx.l.google.com |
| challenge.gov | MX | 10800 | 5 | alt1.aspmx.l.google.com |
| challenge.gov | MX | 10800 | 1 | aspmx.l.google.com |
| challenge.gov | MX | 10800 | 10 | alt4.aspmx.l.google.com |
| challenge.gov | MX | 10800 | 10 | alt3.aspmx.l.google.com |
| www.challenge.gov | A | 60 | | 108.138.64.102 |
| www.challenge.gov | A | 60 | | 108.138.64.128 |
| www.challenge.gov | A | 60 | | 108.138.64.74 |
| www.challenge.gov | A | 60 | | 108.138.64.43 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:7000:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:8200:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:2a00:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:e400:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:6e00:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:800:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:1000:1:3fe0:8b80:93a1 |
| www.challenge.gov | AAAA | 60 | | 2600:9000:2508:a00:1:3fe0:8b80:93a1 |
| www.challenge.gov | CNAME | 8755 | | d3dwroi31duwq6.cloudfront.net |