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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.

132.185.158.45

45.158.185.132.in-addr.arpa

Zone 158.185.132.in-addr.arpa32 queries in 0.7 s2026-11-09 05:34:53 UTC

WHOIS for 132.185.158.45 →TextJSON
  • Problem 45.158.185.132.in-addr.arpa doesn't exist (NXDOMAIN from 158.185.132.in-addr.arpa's nameservers). The domain isn't registered, or its registration has lapsed.

Resolution trace

  1. .asked i.root-servers.net 192.36.148.176.2 ms

    Referral to in-addr.arpa. signed (4 DS)

    • f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1
    • 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
    • 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
  2. in-addr.arpa.asked f.in-addr-servers.arpa 193.0.9.112 ms

    Referral to 132.in-addr.arpa. signed (1 DS)

    • arin.authdns.ripe.net 193.0.9.10 2a13:27c0:30::10
    • y.arin.net 192.82.134.30 2001:500:127::30
    • r.arin.net 199.180.180.63 2001:500:f0::63
    • x.arin.net 199.180.180.63 2001:500:f0::63
    • u.arin.net 204.61.216.50 2001:500:14:6050:ad::1
    • z.arin.net 199.180.180.63 2001:500:f0::63

    No glue for arin.authdns.ripe.net, y.arin.net, r.arin.net, x.arin.net, u.arin.net, z.arin.net: addresses looked up via a resolver.

  3. 132.in-addr.arpa.asked y.arin.net 192.82.134.306.1 ms

    Referral to 185.132.in-addr.arpa. unsigned delegation

    • ns0.bbcdns.net.uk 198.51.44.73 2620:4d:4000:6259:7:9:0:3
    • ns1.bbcdns.net.uk 198.51.45.73 2a00:edc0:6259:7:9::4
    • ns0.bbcdns.net 198.51.44.9 2620:4d:4000:6259:7:9:0:1
    • ns1.bbcdns.net 198.51.45.9 2a00:edc0:6259:7:9::2

    No glue for ns0.bbcdns.net.uk, ns1.bbcdns.net.uk, ns0.bbcdns.net, ns1.bbcdns.net: addresses looked up via a resolver.

    199.180.180.63 failed: NOERROR

  4. 185.132.in-addr.arpa.asked ns1.bbcdns.net 198.51.45.96.2 ms

    NXDOMAIN: this name does not exist.

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 1.1.1.1NXDOMAIN
Google 8.8.8.8NXDOMAIN
Quad9 9.9.9.9NXDOMAIN
OpenDNS 208.67.222.222NXDOMAIN

Text dump

; DNS report for 45.158.185.132.in-addr.arpa (132.185.158.45)
; 2026-11-09 05:34:53 UTC, 32 queries in 0.69 s, zone 158.185.132.in-addr.arpa

;; FINDINGS
;  [ERROR] 45.158.185.132.in-addr.arpa doesn't exist (NXDOMAIN from 158.185.132.in-addr.arpa's nameservers). The domain isn't registered, or its registration has lapsed.

;; TRACE
;  45.158.185.132.in-addr.arpa PTR
;  . @i.root-servers.net (192.36.148.17) 6.2 ms [NOERROR qr]: referral to in-addr.arpa.
in-addr.arpa.		NS	f.in-addr-servers.arpa.	; 193.0.9.1 2a13:27c0:30::1
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	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.	86400	IN	DS	54956 8 2 E0E2BF5CFBD66572CA05EC18267D91509BA6A9405AF05C3FD4141DFA45200C08
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. @f.in-addr-servers.arpa (193.0.9.1) 12 ms [NOERROR qr]: referral to 132.in-addr.arpa.
132.in-addr.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
132.in-addr.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
132.in-addr.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
132.in-addr.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
132.in-addr.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
132.in-addr.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
132.in-addr.arpa.	86400	IN	DS	29281 8 2 8265693B03620327BF75BBAF02F4B748D0A05978797E0840B85C723F4DD28602
;  132.in-addr.arpa. @y.arin.net (192.82.134.30) 6.1 ms [NOERROR qr]: referral to 185.132.in-addr.arpa.
185.132.in-addr.arpa.		NS	ns0.bbcdns.net.uk.	; 198.51.44.73 2620:4d:4000:6259:7:9:0:3
185.132.in-addr.arpa.		NS	ns1.bbcdns.net.uk.	; 198.51.45.73 2a00:edc0:6259:7:9::4
185.132.in-addr.arpa.		NS	ns0.bbcdns.net.	; 198.51.44.9 2620:4d:4000:6259:7:9:0:1
185.132.in-addr.arpa.		NS	ns1.bbcdns.net.	; 198.51.45.9 2a00:edc0:6259:7:9::2
;  185.132.in-addr.arpa. @ns1.bbcdns.net (198.51.45.9) 6.2 ms [NXDOMAIN qr aa]: NXDOMAIN

;; PUBLIC RESOLVERS
;  Cloudflare PTR   NXDOMAIN
;  Google     PTR   NXDOMAIN
;  Quad9      PTR   NXDOMAIN
;  OpenDNS    PTR   NXDOMAIN