Made in / Donate

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.

104.225.46.1

1.46.225.104.in-addr.arpa

Zone 46.225.104.in-addr.arpa108 queries in 1.4 s2026-11-09 05:54:59 UTCNot DNSSEC-signed

WHOIS for 104.225.46.1 →TextJSON
  • Note 46.225.104.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.extcat.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 i.root-servers.net 192.36.148.175.9 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
    • e.in-addr-servers.arpa 203.119.86.101 2001:dd8:6::101
    • d.in-addr-servers.arpa 200.10.60.53 2001:13c7:7010::53
    • c.in-addr-servers.arpa 196.216.169.10 2001:43f8:110::10
    • f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1
  2. in-addr.arpa.asked a.in-addr-servers.arpa 199.180.182.5389 ms

    Referral to 104.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. 104.in-addr.arpa.asked arin.authdns.ripe.net 193.0.9.1011 ms

    Referral to 46.225.104.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.extcat.com 104.225.46.1
    • ns02.extcat.com 104.225.46.65
    • ns03.extcat.com 104.225.46.129
    • ns04.extcat.com 104.225.46.193

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

    199.180.180.63 failed: NOERROR

  4. 46.225.104.in-addr.arpa.asked dns2.p01.nsone.net 198.51.45.18.5 ms

    Answer (authoritative):

    1.46.225.104.in-addr.arpa.3600PTRns01.extcat.com.

Nameservers

Every address of every nameserver, asked for 46.225.104.in-addr.arpa's SOA. "Parent" means the 104.in-addr.arpa zone delegates to it; "zone" means 46.225.104.in-addr.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
dns1.p01.nsone.netparent + zone198.51.44.1 glueauthoritative158588128014 ms
2620:4d:4000:6259:7:1:0:1 glueauthoritative158588128018 ms
dns2.p01.nsone.netparent + zone198.51.45.1 glueauthoritative15858812805.9 ms
2a00:edc0:6259:7:1::2 glueauthoritative158588128014 ms
dns3.p01.nsone.netparent + zone198.51.44.65 glueauthoritative158588128014 ms
2620:4d:4000:6259:7:1:0:3 glueauthoritative158588128017 ms
dns4.p01.nsone.netparent + zone198.51.45.65 glueauthoritative15858812806.6 ms
2a00:edc0:6259:7:1::4 glueauthoritative158588128017 ms
ns01.extcat.comparent + zone104.225.46.1 glueauthoritative158588128025 ms
ns02.extcat.comparent + zone104.225.46.65 glueauthoritative158588128025 ms
ns03.extcat.comparent + zone104.225.46.129 glueauthoritative158588128025 ms
ns04.extcat.comparent + zone104.225.46.193 glueauthoritative158588128025 ms

DNSSEC

46.225.104.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.extcat.com
nameserver · PTR target
104.225.46.1ns01.extcat.com ✓
ns02.extcat.com
nameserver
104.225.46.65ns02.extcat.com ✓
ns03.extcat.com
nameserver
104.225.46.129ns03.extcat.com ✓
ns04.extcat.com
nameserver
104.225.46.193ns04.extcat.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.

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

Text dump

; DNS report for 1.46.225.104.in-addr.arpa (104.225.46.1)
; 2026-11-09 05:54:59 UTC, 108 queries in 1.37 s, zone 46.225.104.in-addr.arpa

;; FINDINGS
;  [INFO] 46.225.104.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))
1.46.225.104.in-addr.arpa.	3600	IN	PTR	ns01.extcat.com.

;; TRACE
;  1.46.225.104.in-addr.arpa PTR
;  . @i.root-servers.net (192.36.148.17) 5.9 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	e.in-addr-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
in-addr.arpa.		NS	d.in-addr-servers.arpa.	; 200.10.60.53 2001:13c7:7010::53
in-addr.arpa.		NS	c.in-addr-servers.arpa.	; 196.216.169.10 2001:43f8:110::10
in-addr.arpa.		NS	f.in-addr-servers.arpa.	; 193.0.9.1 2a13:27c0:30::1
in-addr.arpa.	86400	IN	DS	63982 8 2 AAF4FB5D213EF25AE44679032EBE3514C487D7ABD99D7F5FEC3383D030733C73
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. @a.in-addr-servers.arpa (199.180.182.53) 89 ms [NOERROR qr]: referral to 104.in-addr.arpa.
104.in-addr.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
104.in-addr.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
104.in-addr.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
104.in-addr.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
104.in-addr.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
104.in-addr.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
104.in-addr.arpa.	86400	IN	DS	40042 8 2 B88341BD64E1A398866CBCFE8467425F5F9F370824852C8E6DBE093C85BD6583
;  104.in-addr.arpa. @arin.authdns.ripe.net (193.0.9.10) 11 ms [NOERROR qr]: referral to 46.225.104.in-addr.arpa.
46.225.104.in-addr.arpa.		NS	dns1.p01.nsone.net.	; 198.51.44.1 2620:4d:4000:6259:7:1:0:1
46.225.104.in-addr.arpa.		NS	dns2.p01.nsone.net.	; 198.51.45.1 2a00:edc0:6259:7:1::2
46.225.104.in-addr.arpa.		NS	dns3.p01.nsone.net.	; 198.51.44.65 2620:4d:4000:6259:7:1:0:3
46.225.104.in-addr.arpa.		NS	dns4.p01.nsone.net.	; 198.51.45.65 2a00:edc0:6259:7:1::4
46.225.104.in-addr.arpa.		NS	ns01.extcat.com.	; 104.225.46.1
46.225.104.in-addr.arpa.		NS	ns02.extcat.com.	; 104.225.46.65
46.225.104.in-addr.arpa.		NS	ns03.extcat.com.	; 104.225.46.129
46.225.104.in-addr.arpa.		NS	ns04.extcat.com.	; 104.225.46.193
;  46.225.104.in-addr.arpa. @dns2.p01.nsone.net (198.51.45.1) 8.5 ms [NOERROR qr aa]: answer
1.46.225.104.in-addr.arpa.	3600	IN	PTR	ns01.extcat.com.

;; NAMESERVERS (SOA asked of each address)
;  dns1.p01.nsone.net [parent+zone]
;    198.51.44.1                             ok                        1585881280  14 ms
;    2620:4d:4000:6259:7:1:0:1               ok                        1585881280  18 ms
;  dns2.p01.nsone.net [parent+zone]
;    198.51.45.1                             ok                        1585881280  5.9 ms
;    2a00:edc0:6259:7:1::2                   ok                        1585881280  14 ms
;  dns3.p01.nsone.net [parent+zone]
;    198.51.44.65                            ok                        1585881280  14 ms
;    2620:4d:4000:6259:7:1:0:3               ok                        1585881280  17 ms
;  dns4.p01.nsone.net [parent+zone]
;    198.51.45.65                            ok                        1585881280  6.6 ms
;    2a00:edc0:6259:7:1::4                   ok                        1585881280  17 ms
;  ns01.extcat.com [parent+zone]
;    104.225.46.1                            ok                        1585881280  25 ms
;  ns02.extcat.com [parent+zone]
;    104.225.46.65                           ok                        1585881280  25 ms
;  ns03.extcat.com [parent+zone]
;    104.225.46.129                          ok                        1585881280  25 ms
;  ns04.extcat.com [parent+zone]
;    104.225.46.193                          ok                        1585881280  25 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.extcat.com (nameserver; PTR target)
;    104.225.46.1                            PTR ns01.extcat.com (confirmed)
;  ns02.extcat.com (nameserver)
;    104.225.46.65                           PTR ns02.extcat.com (confirmed)
;  ns03.extcat.com (nameserver)
;    104.225.46.129                          PTR ns03.extcat.com (confirmed)
;  ns04.extcat.com (nameserver)
;    104.225.46.193                          PTR ns04.extcat.com (confirmed)

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