DNS lookup
Everything DNS says about a domain: traced from the root servers down, every record type asked of the domain's own nameservers, each nameserver checked, then every hostname and policy record it points at followed, with SPF, DMARC, DKIM and DNSSEC checked along the way.
45.54.79.129
129.79.54.45.in-addr.arpa
Zone 79.54.45.in-addr.arpa142 queries in 0.8 s2026-11-09 06:11:13 UTCNot DNSSEC-signed
- Warning The parent zone delegates to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.foxdoua.com, ns02.foxdoua.com, ns03.foxdoua.com, ns04.foxdoua.com but 79.54.45.in-addr.arpa itself lists dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net, ns01.foxdoua.com, ns02.foxdoua.com, ns03.foxdoua.com, ns04.foxdoua.com. Make the two lists match.
- Note 79.54.45.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.
Records
Asked directly of dns2.p01.nsone.net (198.51.45.1), an authoritative server: no cache in between, so these are the live values.
PTR Reverse pointer
| 3600 | PTR | ns03.foxdoua.com. |
ANY query: refused politely (RFC 8482)
| 3600 | HINFO | "RFC8482" "" |
No records of type A, AAAA, CNAME, DNAME, NS, SOA, MX, TXT, CAA, HTTPS, SVCB, SRV, NAPTR, DS, DNSKEY, CDS, CDNSKEY, NSEC3PARAM, TLSA, SSHFP, LOC, HINFO, RP, URI, SPF, OPENPGPKEY, ZONEMD, CSYNC.
Resolution trace
- .asked d.root-servers.net 199.7.91.135.6 ms
Referral to in-addr.arpa. signed (4 DS)
- a.in-addr-servers.arpa 199.180.182.53 2620:37:e000::53
- b.in-addr-servers.arpa 199.253.183.183 2001:500:87::87
- c.in-addr-servers.arpa 196.216.169.10 2001:43f8:110::10
- d.in-addr-servers.arpa 200.10.60.53 2001:13c7:7010::53
- e.in-addr-servers.arpa 203.119.86.101 2001:dd8:6::101
- f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1
- in-addr.arpa.asked f.in-addr-servers.arpa 193.0.9.111 ms
Referral to 45.in-addr.arpa. signed (1 DS)
- r.arin.net 199.180.180.63 2001:500:f0::63
- u.arin.net 204.61.216.50 2001:500:14:6050:ad::1
- x.arin.net 199.180.180.63 2001:500:f0::63
- y.arin.net 192.82.134.30 2001:500:127::30
- z.arin.net 199.180.180.63 2001:500:f0::63
- arin.authdns.ripe.net 193.0.9.10 2a13:27c0:30::10
No glue for r.arin.net, u.arin.net, x.arin.net, y.arin.net, z.arin.net, arin.authdns.ripe.net: addresses looked up via a resolver.
196.216.169.10 failed: NOERROR
- 45.in-addr.arpa.asked u.arin.net 204.61.216.506.0 ms
Referral to 79.54.45.in-addr.arpa. unsigned delegation
- ns03.foxdoua.com 45.54.79.129
- dns4.p01.nsone.net 198.51.45.65 2a00:edc0:6259:7:1::4
- dns3.p01.nsone.net 198.51.44.65 2620:4d:4000:6259:7:1:0:3
- ns02.foxdoua.com 45.54.79.65
- dns1.p01.nsone.net 198.51.44.1 2620:4d:4000:6259:7:1:0:1
- dns2.p01.nsone.net 198.51.45.1 2a00:edc0:6259:7:1::2
- ns01.foxdoua.com 45.54.79.1
- ns04.foxdoua.com 45.54.79.193
No glue for ns03.foxdoua.com, dns4.p01.nsone.net, dns3.p01.nsone.net, ns02.foxdoua.com, dns1.p01.nsone.net, dns2.p01.nsone.net, ns01.foxdoua.com, ns04.foxdoua.com: addresses looked up via a resolver.
199.180.180.63 failed: NOERROR
- 79.54.45.in-addr.arpa.asked dns4.p01.nsone.net 198.51.45.656.0 ms
Answer (authoritative):
129.79.54.45.in-addr.arpa. 3600 PTR ns03.foxdoua.com. 45.54.79.1 failed: NOERROR
Nameservers
Every address of every nameserver, asked for 79.54.45.in-addr.arpa's SOA. "Parent" means the 45.in-addr.arpa zone delegates to it; "zone" means 79.54.45.in-addr.arpa lists it itself.
| Nameserver | Listed in | Address | Status | Serial | Time |
|---|---|---|---|---|---|
| dns1.p01.nsone.net | parent | 198.51.44.1 glue | authoritative | 1578642012 | 12 ms |
| 2620:4d:4000:6259:7:1:0:1 glue | authoritative | 1578642012 | 14 ms | ||
| dns1.p08.nsone.net | zone | 198.51.44.8 | authoritative | 1578642012 | 14 ms |
| 2620:4d:4000:6259:7:8:0:1 | authoritative | 1578642012 | 14 ms | ||
| dns2.p01.nsone.net | parent | 198.51.45.1 glue | authoritative | 1578642012 | 6.0 ms |
| 2a00:edc0:6259:7:1::2 glue | authoritative | 1578642012 | 13 ms | ||
| dns2.p08.nsone.net | zone | 198.51.45.8 | authoritative | 1578642012 | 6.0 ms |
| 2a00:edc0:6259:7:8::2 | authoritative | 1578642012 | 13 ms | ||
| dns3.p01.nsone.net | parent | 198.51.44.65 glue | authoritative | 1578642012 | 15 ms |
| 2620:4d:4000:6259:7:1:0:3 glue | authoritative | 1578642012 | 14 ms | ||
| dns3.p08.nsone.net | zone | 198.51.44.72 | authoritative | 1578642012 | 14 ms |
| 2620:4d:4000:6259:7:8:0:3 | authoritative | 1578642012 | 15 ms | ||
| dns4.p01.nsone.net | parent | 198.51.45.65 glue | authoritative | 1578642012 | 6.5 ms |
| 2a00:edc0:6259:7:1::4 glue | authoritative | 1578642012 | 14 ms | ||
| dns4.p08.nsone.net | zone | 198.51.45.72 | authoritative | 1578642012 | 6.4 ms |
| 2a00:edc0:6259:7:8::4 | authoritative | 1578642012 | 14 ms | ||
| ns01.foxdoua.com | parent + zone | 45.54.79.1 glue | authoritative | 1578642012 | 23 ms |
| ns02.foxdoua.com | parent + zone | 45.54.79.65 glue | authoritative | 1578642012 | 23 ms |
| ns03.foxdoua.com | parent + zone | 45.54.79.129 glue | authoritative | 1578642012 | 24 ms |
| ns04.foxdoua.com | parent + zone | 45.54.79.193 glue | authoritative | 1578642012 | 23 ms |
DNSSEC
79.54.45.in-addr.arpa isn't signed: no DS at the parent and no DNSKEY in the zone.
Hosts and reverse DNS
Every hostname the records point at, resolved to its addresses; each address's PTR (reverse DNS), with ✓ where the PTR name resolves back to the same address.
| Host | Address | Reverse DNS (PTR) |
|---|---|---|
dns1.p01.nsone.net nameserver | 198.51.44.1 | dns1.p01.nsone.net ✓ |
| 2620:4d:4000:6259:7:1:0:1 | dns1.p01.nsone.net ✓ | |
dns1.p08.nsone.net nameserver | 198.51.44.8 | ns8.demysdns.com, dns1.p08.nsone.net ✓ |
| 2620:4d:4000:6259:7:8:0:1 | dns1.p08.nsone.net, ns8.demysdns.com ✓ | |
dns2.p01.nsone.net nameserver | 198.51.45.1 | dns2.p01.nsone.net ✓ |
| 2a00:edc0:6259:7:1::2 | dns2.p01.nsone.net ✓ | |
dns2.p08.nsone.net nameserver | 198.51.45.8 | dns2.p08.nsone.net ✓ |
| 2a00:edc0:6259:7:8::2 | dns2.p08.nsone.net ✓ | |
dns3.p01.nsone.net nameserver | 198.51.44.65 | dns3.p01.nsone.net ✓ |
| 2620:4d:4000:6259:7:1:0:3 | dns3.p01.nsone.net ✓ | |
dns3.p08.nsone.net nameserver | 198.51.44.72 | dns3.p08.nsone.net ✓ |
| 2620:4d:4000:6259:7:8:0:3 | dns3.p08.nsone.net ✓ | |
dns4.p01.nsone.net nameserver | 198.51.45.65 | dns4.p01.nsone.net ✓ |
| 2a00:edc0:6259:7:1::4 | dns4.p01.nsone.net ✓ | |
dns4.p08.nsone.net nameserver | 198.51.45.72 | dns4.p08.nsone.net ✓ |
| 2a00:edc0:6259:7:8::4 | dns4.p08.nsone.net ✓ | |
ns01.foxdoua.com nameserver | 45.54.79.1 | ns01.foxdoua.com ✓ |
ns02.foxdoua.com nameserver | 45.54.79.65 | ns02.foxdoua.com ✓ |
ns03.foxdoua.com nameserver · PTR target | 45.54.79.129 | ns03.foxdoua.com ✓ |
ns04.foxdoua.com nameserver | 45.54.79.193 | ns04.foxdoua.com ✓ |
Public resolvers
What four public resolvers answer right now, from their caches. Highlighted values differ from the authoritative answer: either a recent change they haven't picked up yet (the TTL says how long until they do), or, for A and AAAA, a CDN or geo-routed site handing each resolver location its own addresses.
| Resolver | PTR |
|---|---|
| Cloudflare 1.1.1.1 | ns03.foxdoua.com. TTL 3600 |
| Google 8.8.8.8 | ns03.foxdoua.com. TTL 2359 |
| Quad9 9.9.9.9 | ns03.foxdoua.com. TTL 3600 |
| OpenDNS 208.67.222.222 | ns03.foxdoua.com. TTL 3600 |
Text dump
; DNS report for 129.79.54.45.in-addr.arpa (45.54.79.129) ; 2026-11-09 06:11:13 UTC, 142 queries in 0.83 s, zone 79.54.45.in-addr.arpa ;; FINDINGS ; [WARN] The parent zone delegates to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.foxdoua.com, ns02.foxdoua.com, ns03.foxdoua.com, ns04.foxdoua.com but 79.54.45.in-addr.arpa itself lists dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net, ns01.foxdoua.com, ns02.foxdoua.com, ns03.foxdoua.com, ns04.foxdoua.com. Make the two lists match. ; [INFO] 79.54.45.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones. ;; RECORDS (authoritative, from dns2.p01.nsone.net (198.51.45.1)) 129.79.54.45.in-addr.arpa. 3600 IN PTR ns03.foxdoua.com. ;; TRACE ; 129.79.54.45.in-addr.arpa PTR ; . @d.root-servers.net (199.7.91.13) 5.6 ms [NOERROR qr]: referral to in-addr.arpa. in-addr.arpa. NS a.in-addr-servers.arpa. ; 199.180.182.53 2620:37:e000::53 in-addr.arpa. NS b.in-addr-servers.arpa. ; 199.253.183.183 2001:500:87::87 in-addr.arpa. NS c.in-addr-servers.arpa. ; 196.216.169.10 2001:43f8:110::10 in-addr.arpa. NS d.in-addr-servers.arpa. ; 200.10.60.53 2001:13c7:7010::53 in-addr.arpa. NS e.in-addr-servers.arpa. ; 203.119.86.101 2001:dd8:6::101 in-addr.arpa. NS f.in-addr-servers.arpa. ; 193.0.9.1 2a13:27c0:30::1 in-addr.arpa. 86400 IN DS 47054 8 2 5CAFCCEC201D1933B4C9F6A9C8F51E51F3B39979058AC21B8DF1B1F281CBC6F2 in-addr.arpa. 86400 IN DS 53696 8 2 13E5501C56B20394DA921B51412D48B7089C5EB6957A7C58553C4D4D424F04DF in-addr.arpa. 86400 IN DS 54956 8 2 E0E2BF5CFBD66572CA05EC18267D91509BA6A9405AF05C3FD4141DFA45200C08 in-addr.arpa. 86400 IN DS 63982 8 2 AAF4FB5D213EF25AE44679032EBE3514C487D7ABD99D7F5FEC3383D030733C73 ; in-addr.arpa. @f.in-addr-servers.arpa (193.0.9.1) 11 ms [NOERROR qr]: referral to 45.in-addr.arpa. 45.in-addr.arpa. NS r.arin.net. ; 199.180.180.63 2001:500:f0::63 45.in-addr.arpa. NS u.arin.net. ; 204.61.216.50 2001:500:14:6050:ad::1 45.in-addr.arpa. NS x.arin.net. ; 199.180.180.63 2001:500:f0::63 45.in-addr.arpa. NS y.arin.net. ; 192.82.134.30 2001:500:127::30 45.in-addr.arpa. NS z.arin.net. ; 199.180.180.63 2001:500:f0::63 45.in-addr.arpa. NS arin.authdns.ripe.net. ; 193.0.9.10 2a13:27c0:30::10 45.in-addr.arpa. 86400 IN DS 9136 8 2 97414863B7A0FDE713FB174990E9B43DE47467707010C01380743425EE6D146B ; 45.in-addr.arpa. @u.arin.net (204.61.216.50) 6.0 ms [NOERROR qr]: referral to 79.54.45.in-addr.arpa. 79.54.45.in-addr.arpa. NS ns03.foxdoua.com. ; 45.54.79.129 79.54.45.in-addr.arpa. NS dns4.p01.nsone.net. ; 198.51.45.65 2a00:edc0:6259:7:1::4 79.54.45.in-addr.arpa. NS dns3.p01.nsone.net. ; 198.51.44.65 2620:4d:4000:6259:7:1:0:3 79.54.45.in-addr.arpa. NS ns02.foxdoua.com. ; 45.54.79.65 79.54.45.in-addr.arpa. NS dns1.p01.nsone.net. ; 198.51.44.1 2620:4d:4000:6259:7:1:0:1 79.54.45.in-addr.arpa. NS dns2.p01.nsone.net. ; 198.51.45.1 2a00:edc0:6259:7:1::2 79.54.45.in-addr.arpa. NS ns01.foxdoua.com. ; 45.54.79.1 79.54.45.in-addr.arpa. NS ns04.foxdoua.com. ; 45.54.79.193 ; 79.54.45.in-addr.arpa. @dns4.p01.nsone.net (198.51.45.65) 6.0 ms [NOERROR qr aa]: answer 129.79.54.45.in-addr.arpa. 3600 IN PTR ns03.foxdoua.com. ;; NAMESERVERS (SOA asked of each address) ; dns1.p01.nsone.net [parent] ; 198.51.44.1 ok 1578642012 12 ms ; 2620:4d:4000:6259:7:1:0:1 ok 1578642012 14 ms ; dns1.p08.nsone.net [zone] ; 198.51.44.8 ok 1578642012 14 ms ; 2620:4d:4000:6259:7:8:0:1 ok 1578642012 14 ms ; dns2.p01.nsone.net [parent] ; 198.51.45.1 ok 1578642012 6.0 ms ; 2a00:edc0:6259:7:1::2 ok 1578642012 13 ms ; dns2.p08.nsone.net [zone] ; 198.51.45.8 ok 1578642012 6.0 ms ; 2a00:edc0:6259:7:8::2 ok 1578642012 13 ms ; dns3.p01.nsone.net [parent] ; 198.51.44.65 ok 1578642012 15 ms ; 2620:4d:4000:6259:7:1:0:3 ok 1578642012 14 ms ; dns3.p08.nsone.net [zone] ; 198.51.44.72 ok 1578642012 14 ms ; 2620:4d:4000:6259:7:8:0:3 ok 1578642012 15 ms ; dns4.p01.nsone.net [parent] ; 198.51.45.65 ok 1578642012 6.5 ms ; 2a00:edc0:6259:7:1::4 ok 1578642012 14 ms ; dns4.p08.nsone.net [zone] ; 198.51.45.72 ok 1578642012 6.4 ms ; 2a00:edc0:6259:7:8::4 ok 1578642012 14 ms ; ns01.foxdoua.com [parent+zone] ; 45.54.79.1 ok 1578642012 23 ms ; ns02.foxdoua.com [parent+zone] ; 45.54.79.65 ok 1578642012 23 ms ; ns03.foxdoua.com [parent+zone] ; 45.54.79.129 ok 1578642012 24 ms ; ns04.foxdoua.com [parent+zone] ; 45.54.79.193 ok 1578642012 23 ms ;; DNSSEC: unsigned ;; HOSTS ; dns1.p01.nsone.net (nameserver) ; 198.51.44.1 PTR dns1.p01.nsone.net (confirmed) ; 2620:4d:4000:6259:7:1:0:1 PTR dns1.p01.nsone.net (confirmed) ; dns1.p08.nsone.net (nameserver) ; 198.51.44.8 PTR ns8.demysdns.com, dns1.p08.nsone.net (confirmed) ; 2620:4d:4000:6259:7:8:0:1 PTR dns1.p08.nsone.net, ns8.demysdns.com (confirmed) ; dns2.p01.nsone.net (nameserver) ; 198.51.45.1 PTR dns2.p01.nsone.net (confirmed) ; 2a00:edc0:6259:7:1::2 PTR dns2.p01.nsone.net (confirmed) ; dns2.p08.nsone.net (nameserver) ; 198.51.45.8 PTR dns2.p08.nsone.net (confirmed) ; 2a00:edc0:6259:7:8::2 PTR dns2.p08.nsone.net (confirmed) ; dns3.p01.nsone.net (nameserver) ; 198.51.44.65 PTR dns3.p01.nsone.net (confirmed) ; 2620:4d:4000:6259:7:1:0:3 PTR dns3.p01.nsone.net (confirmed) ; dns3.p08.nsone.net (nameserver) ; 198.51.44.72 PTR dns3.p08.nsone.net (confirmed) ; 2620:4d:4000:6259:7:8:0:3 PTR dns3.p08.nsone.net (confirmed) ; dns4.p01.nsone.net (nameserver) ; 198.51.45.65 PTR dns4.p01.nsone.net (confirmed) ; 2a00:edc0:6259:7:1::4 PTR dns4.p01.nsone.net (confirmed) ; dns4.p08.nsone.net (nameserver) ; 198.51.45.72 PTR dns4.p08.nsone.net (confirmed) ; 2a00:edc0:6259:7:8::4 PTR dns4.p08.nsone.net (confirmed) ; ns01.foxdoua.com (nameserver) ; 45.54.79.1 PTR ns01.foxdoua.com (confirmed) ; ns02.foxdoua.com (nameserver) ; 45.54.79.65 PTR ns02.foxdoua.com (confirmed) ; ns03.foxdoua.com (nameserver; PTR target) ; 45.54.79.129 PTR ns03.foxdoua.com (confirmed) ; ns04.foxdoua.com (nameserver) ; 45.54.79.193 PTR ns04.foxdoua.com (confirmed) ;; PUBLIC RESOLVERS ; Cloudflare PTR ns03.foxdoua.com. ttl 3600 ; Google PTR ns03.foxdoua.com. ttl 2359 ; Quad9 PTR ns03.foxdoua.com. ttl 3600 ; OpenDNS PTR ns03.foxdoua.com. ttl 3600