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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.

Try example.com, gmail.com, www.github.com, dnssec-failed.org, 1.1.1.1. A URL, e-mail address or IP address works too.

45.54.83.1

1.83.54.45.in-addr.arpa

Zone 83.54.45.in-addr.arpa120 queries in 1.3 s2026-11-09 05:54:49 UTCNot DNSSEC-signed

  • Note 83.54.45.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

3600PTRns01.globalsigndns.com.
ANY query: refused politely (RFC 8482)
3600HINFO"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

  1. .asked d.root-servers.net 199.7.91.135.8 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

    192.36.148.17 failed: NOERROR

  2. in-addr.arpa.asked b.in-addr-servers.arpa 199.253.183.1836.0 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.

    203.119.86.101 failed: NOERROR

  3. 45.in-addr.arpa.asked arin.authdns.ripe.net 193.0.9.1012 ms

    Referral to 83.54.45.in-addr.arpa. unsigned delegation

    • 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
    • dns3.p01.nsone.net 198.51.44.65 2620:4d:4000:6259:7:1:0:3
    • dns4.p01.nsone.net 198.51.45.65 2a00:edc0:6259:7:1::4
    • ns01.globalsigndns.com 45.54.83.1 2607:f740:e00e::1
    • ns02.globalsigndns.com 45.54.83.65 2607:f740:e00e:4::1
    • ns03.globalsigndns.com 45.54.83.129 2607:f740:e00e:8::1
    • ns04.globalsigndns.com 45.54.83.193 2607:f740:e00e:c::1

    No glue for dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.globalsigndns.com, ns02.globalsigndns.com, ns03.globalsigndns.com, ns04.globalsigndns.com: addresses looked up via a resolver.

    199.180.180.63 failed: NOERROR

  4. 83.54.45.in-addr.arpa.asked dns3.p01.nsone.net 198.51.44.6514 ms

    Answer (authoritative):

    1.83.54.45.in-addr.arpa.3600PTRns01.globalsigndns.com.

    45.54.83.1 failed: NOERROR

Nameservers

Every address of every nameserver, asked for 83.54.45.in-addr.arpa's SOA. "Parent" means the 45.in-addr.arpa zone delegates to it; "zone" means 83.54.45.in-addr.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
dns1.p01.nsone.netparent + zone198.51.44.1 glueauthoritative163651820515 ms
2620:4d:4000:6259:7:1:0:1 glueauthoritative163651820513 ms
dns2.p01.nsone.netparent + zone198.51.45.1 glueauthoritative16365182056.1 ms
2a00:edc0:6259:7:1::2 glueauthoritative163651820512 ms
dns3.p01.nsone.netparent + zone198.51.44.65 glueauthoritative163651820513 ms
2620:4d:4000:6259:7:1:0:3 glueauthoritative163651820513 ms
dns4.p01.nsone.netparent + zone198.51.45.65 glueauthoritative16365182056.1 ms
2a00:edc0:6259:7:1::4 glueauthoritative163651820513 ms
ns01.globalsigndns.comparent + zone45.54.83.1 glueauthoritative163651820517 ms
2607:f740:e00e::1 glueauthoritative163651820518 ms
ns02.globalsigndns.comparent + zone45.54.83.65 glueauthoritative163651820517 ms
2607:f740:e00e:4::1 glueauthoritative163651820518 ms
ns03.globalsigndns.comparent + zone45.54.83.129 glueauthoritative163651820517 ms
2607:f740:e00e:8::1 glueauthoritative163651820518 ms
ns04.globalsigndns.comparent + zone45.54.83.193 glueauthoritative163651820517 ms
2607:f740:e00e:c::1 glueauthoritative163651820518 ms

DNSSEC

83.54.45.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.

HostAddressReverse DNS (PTR)
dns1.p01.nsone.net
nameserver
198.51.44.1dns1.p01.nsone.net ✓
2620:4d:4000:6259:7:1:0:1dns1.p01.nsone.net ✓
dns2.p01.nsone.net
nameserver
198.51.45.1dns2.p01.nsone.net ✓
2a00:edc0:6259:7:1::2dns2.p01.nsone.net ✓
dns3.p01.nsone.net
nameserver
198.51.44.65dns3.p01.nsone.net ✓
2620:4d:4000:6259:7:1:0:3dns3.p01.nsone.net ✓
dns4.p01.nsone.net
nameserver
198.51.45.65dns4.p01.nsone.net ✓
2a00:edc0:6259:7:1::4dns4.p01.nsone.net ✓
ns01.globalsigndns.com
nameserver · PTR target
45.54.83.1ns01.globalsigndns.com ✓
2607:f740:e00e::1none
ns02.globalsigndns.com
nameserver
45.54.83.65ns02.globalsigndns.com ✓
2607:f740:e00e:4::1none
ns03.globalsigndns.com
nameserver
45.54.83.129ns03.globalsigndns.com ✓
2607:f740:e00e:8::1none
ns04.globalsigndns.com
nameserver
45.54.83.193ns04.globalsigndns.com ✓
2607:f740:e00e:c::1none

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.

ResolverPTR
Cloudflare 1.1.1.1ns01.globalsigndns.com.
TTL 3600
Google 8.8.8.8ns01.globalsigndns.com.
TTL 3146
Quad9 9.9.9.9ns01.globalsigndns.com.
TTL 3600
OpenDNS 208.67.222.222ns01.globalsigndns.com.
TTL 3600

Text dump

; DNS report for 1.83.54.45.in-addr.arpa (45.54.83.1)
; 2026-11-09 05:54:49 UTC, 120 queries in 1.34 s, zone 83.54.45.in-addr.arpa

;; FINDINGS
;  [INFO] 83.54.45.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))
1.83.54.45.in-addr.arpa.	3600	IN	PTR	ns01.globalsigndns.com.

;; TRACE
;  1.83.54.45.in-addr.arpa PTR
;  . @d.root-servers.net (199.7.91.13) 5.8 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. @b.in-addr-servers.arpa (199.253.183.183) 6.0 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. @arin.authdns.ripe.net (193.0.9.10) 12 ms [NOERROR qr]: referral to 83.54.45.in-addr.arpa.
83.54.45.in-addr.arpa.		NS	dns1.p01.nsone.net.	; 198.51.44.1 2620:4d:4000:6259:7:1:0:1
83.54.45.in-addr.arpa.		NS	dns2.p01.nsone.net.	; 198.51.45.1 2a00:edc0:6259:7:1::2
83.54.45.in-addr.arpa.		NS	dns3.p01.nsone.net.	; 198.51.44.65 2620:4d:4000:6259:7:1:0:3
83.54.45.in-addr.arpa.		NS	dns4.p01.nsone.net.	; 198.51.45.65 2a00:edc0:6259:7:1::4
83.54.45.in-addr.arpa.		NS	ns01.globalsigndns.com.	; 45.54.83.1 2607:f740:e00e::1
83.54.45.in-addr.arpa.		NS	ns02.globalsigndns.com.	; 45.54.83.65 2607:f740:e00e:4::1
83.54.45.in-addr.arpa.		NS	ns03.globalsigndns.com.	; 45.54.83.129 2607:f740:e00e:8::1
83.54.45.in-addr.arpa.		NS	ns04.globalsigndns.com.	; 45.54.83.193 2607:f740:e00e:c::1
;  83.54.45.in-addr.arpa. @dns3.p01.nsone.net (198.51.44.65) 14 ms [NOERROR qr aa]: answer
1.83.54.45.in-addr.arpa.	3600	IN	PTR	ns01.globalsigndns.com.

;; NAMESERVERS (SOA asked of each address)
;  dns1.p01.nsone.net [parent+zone]
;    198.51.44.1                             ok                        1636518205  15 ms
;    2620:4d:4000:6259:7:1:0:1               ok                        1636518205  13 ms
;  dns2.p01.nsone.net [parent+zone]
;    198.51.45.1                             ok                        1636518205  6.1 ms
;    2a00:edc0:6259:7:1::2                   ok                        1636518205  12 ms
;  dns3.p01.nsone.net [parent+zone]
;    198.51.44.65                            ok                        1636518205  13 ms
;    2620:4d:4000:6259:7:1:0:3               ok                        1636518205  13 ms
;  dns4.p01.nsone.net [parent+zone]
;    198.51.45.65                            ok                        1636518205  6.1 ms
;    2a00:edc0:6259:7:1::4                   ok                        1636518205  13 ms
;  ns01.globalsigndns.com [parent+zone]
;    45.54.83.1                              ok                        1636518205  17 ms
;    2607:f740:e00e::1                       ok                        1636518205  18 ms
;  ns02.globalsigndns.com [parent+zone]
;    45.54.83.65                             ok                        1636518205  17 ms
;    2607:f740:e00e:4::1                     ok                        1636518205  18 ms
;  ns03.globalsigndns.com [parent+zone]
;    45.54.83.129                            ok                        1636518205  17 ms
;    2607:f740:e00e:8::1                     ok                        1636518205  18 ms
;  ns04.globalsigndns.com [parent+zone]
;    45.54.83.193                            ok                        1636518205  17 ms
;    2607:f740:e00e:c::1                     ok                        1636518205  18 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)
;  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)
;  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)
;  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)
;  ns01.globalsigndns.com (nameserver; PTR target)
;    45.54.83.1                              PTR ns01.globalsigndns.com (confirmed)
;    2607:f740:e00e::1                       PTR none
;  ns02.globalsigndns.com (nameserver)
;    45.54.83.65                             PTR ns02.globalsigndns.com (confirmed)
;    2607:f740:e00e:4::1                     PTR none
;  ns03.globalsigndns.com (nameserver)
;    45.54.83.129                            PTR ns03.globalsigndns.com (confirmed)
;    2607:f740:e00e:8::1                     PTR none
;  ns04.globalsigndns.com (nameserver)
;    45.54.83.193                            PTR ns04.globalsigndns.com (confirmed)
;    2607:f740:e00e:c::1                     PTR none

;; PUBLIC RESOLVERS
;  Cloudflare PTR   ns01.globalsigndns.com.  ttl 3600
;  Google     PTR   ns01.globalsigndns.com.  ttl 3146
;  Quad9      PTR   ns01.globalsigndns.com.  ttl 3600
;  OpenDNS    PTR   ns01.globalsigndns.com.  ttl 3600