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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.

2803:f800:50::6ca2:c1f0

0.f.1.c.2.a.c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.0.0.0.8.f.3.0.8.2.ip6.arpa

Zone 0.0.8.f.3.0.8.2.ip6.arpa110 queries in 0.9 s2026-11-09 05:40:51 UTCNot DNSSEC-signed

WHOIS for 2803:f800:50::6ca2:c1f0 →TextJSON
  • Note 0.0.8.f.3.0.8.2.ip6.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of cruz.ns.cloudflare.com (172.64.32.88), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

1800PTRtony.ns.cloudflare.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 f.root-servers.net 192.5.5.2416.8 ms

    Referral to ip6.arpa. signed (3 DS)

    • a.ip6-servers.arpa 199.180.182.53 2620:37:e000::53
    • b.ip6-servers.arpa 199.253.182.182 2001:500:86::86
    • c.ip6-servers.arpa 196.216.169.11 2001:43f8:110::11
    • d.ip6-servers.arpa 200.7.86.53 2001:13c7:7012::53
    • e.ip6-servers.arpa 203.119.86.101 2001:dd8:6::101
    • f.ip6-servers.arpa 193.0.9.2 2a13:27c0:30::2

    192.58.128.30 failed: NOERROR

  2. ip6.arpa.asked a.ip6-servers.arpa 199.180.182.5390 ms

    Referral to 0.8.2.ip6.arpa. signed (1 DS)

    • ns3.afrinic.net 204.61.216.100 2001:500:14:6100:ad::1
    • ns4.lacnic.net 190.112.52.35 2001:13c7:7020:210::35
    • lacnic.authdns.ripe.net 193.0.9.11 2a13:27c0:30::11
    • a.arpa.dns.br 200.160.11.50
    • ns2.lacnic.net 200.3.13.11 2001:13c7:7002:3000::11
    • a.lactld.org 200.0.68.10 2801:14:a000::10
    • rirns.arin.net 199.253.249.53 2620:38:2000::53
    • ns.lacnic.net 200.3.13.10 2001:13c7:7002:3000::10
    • ns4.apnic.net 202.12.31.53 2001:dd8:12::53

    No glue for ns3.afrinic.net, ns4.lacnic.net, lacnic.authdns.ripe.net, a.arpa.dns.br, ns2.lacnic.net, a.lactld.org, rirns.arin.net, ns.lacnic.net, ns4.apnic.net: addresses looked up via a resolver.

  3. 0.8.2.ip6.arpa.asked rirns.arin.net 199.253.249.5390 ms

    Referral to 0.0.8.f.3.0.8.2.ip6.arpa. unsigned delegation

    • cruz.ns.cloudflare.com 108.162.192.88 172.64.32.88 173.245.58.88 2606:4700:50::adf5:3a58 2803:f800:50::6ca2:c058 2a06:98c1:50::ac40:2058
    • kevin.ns.cloudflare.com 108.162.193.191 172.64.33.191 173.245.59.191 2606:4700:58::adf5:3bbf 2803:f800:50::6ca2:c1bf 2a06:98c1:50::ac40:21bf

    No glue for cruz.ns.cloudflare.com, kevin.ns.cloudflare.com: addresses looked up via a resolver.

  4. 0.0.8.f.3.0.8.2.ip6.arpa.asked kevin.ns.cloudflare.com 173.245.59.1916.8 ms

    Answer (authoritative):

    0.f.1.c.2.a.c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.0.0.0.8.f.3.0.8.2.ip6.arpa.1800PTRtony.ns.cloudflare.com.

    172.64.33.191 failed: NOERROR

Nameservers

Every address of every nameserver, asked for 0.0.8.f.3.0.8.2.ip6.arpa's SOA. "Parent" means the 0.8.2.ip6.arpa zone delegates to it; "zone" means 0.0.8.f.3.0.8.2.ip6.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
cruz.ns.cloudflare.comparent + zone108.162.192.88 glueauthoritative23873999577.0 ms
172.64.32.88 glueauthoritative23873999576.6 ms
173.245.58.88 glueauthoritative23873999577.2 ms
2606:4700:50::adf5:3a58 glueauthoritative23873999577.1 ms
2803:f800:50::6ca2:c058 glueauthoritative23873999577.1 ms
2a06:98c1:50::ac40:2058 glueauthoritative23873999577.0 ms
kevin.ns.cloudflare.comparent + zone108.162.193.191 glueauthoritative23873999577.0 ms
172.64.33.191 glueauthoritative23873999577.0 ms
173.245.59.191 glueauthoritative23873999577.3 ms
2606:4700:58::adf5:3bbf glueauthoritative23873999576.9 ms
2803:f800:50::6ca2:c1bf glueauthoritative23873999577.4 ms
2a06:98c1:50::ac40:21bf glueauthoritative23873999576.7 ms

DNSSEC

0.0.8.f.3.0.8.2.ip6.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)
cruz.ns.cloudflare.com
nameserver
108.162.192.88cruz.ns.cloudflare.com ✓
172.64.32.88cruz.ns.cloudflare.com ✓
173.245.58.88cruz.ns.cloudflare.com ✓
2606:4700:50::adf5:3a58cruz.ns.cloudflare.com ✓
2803:f800:50::6ca2:c058cruz.ns.cloudflare.com ✓
2a06:98c1:50::ac40:2058cruz.ns.cloudflare.com ✓
kevin.ns.cloudflare.com
nameserver
108.162.193.191kevin.ns.cloudflare.com ✓
172.64.33.191kevin.ns.cloudflare.com ✓
173.245.59.191kevin.ns.cloudflare.com ✓
2606:4700:58::adf5:3bbfkevin.ns.cloudflare.com ✓
2803:f800:50::6ca2:c1bfkevin.ns.cloudflare.com ✓
2a06:98c1:50::ac40:21bfkevin.ns.cloudflare.com ✓
tony.ns.cloudflare.com
PTR target
108.162.193.240tony.ns.cloudflare.com ✓
172.64.33.240tony.ns.cloudflare.com ✓
173.245.59.240tony.ns.cloudflare.com ✓
2606:4700:58::adf5:3bf0tony.ns.cloudflare.com ✓
2803:f800:50::6ca2:c1f0tony.ns.cloudflare.com ✓
2a06:98c1:50::ac40:21f0tony.ns.cloudflare.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 1.1.1.1tony.ns.cloudflare.com.
TTL 1800
Google 8.8.8.8tony.ns.cloudflare.com.
TTL 1316
Quad9 9.9.9.9tony.ns.cloudflare.com.
TTL 1800
OpenDNS 208.67.222.222tony.ns.cloudflare.com.
TTL 1800

Text dump

; DNS report for 0.f.1.c.2.a.c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.0.0.0.8.f.3.0.8.2.ip6.arpa (2803:f800:50::6ca2:c1f0)
; 2026-11-09 05:40:51 UTC, 110 queries in 0.89 s, zone 0.0.8.f.3.0.8.2.ip6.arpa

;; FINDINGS
;  [INFO] 0.0.8.f.3.0.8.2.ip6.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from cruz.ns.cloudflare.com (172.64.32.88))
0.f.1.c.2.a.c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.0.0.0.8.f.3.0.8.2.ip6.arpa.	1800	IN	PTR	tony.ns.cloudflare.com.

;; TRACE
;  0.f.1.c.2.a.c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.0.0.0.8.f.3.0.8.2.ip6.arpa PTR
;  . @f.root-servers.net (192.5.5.241) 6.8 ms [NOERROR qr]: referral to ip6.arpa.
ip6.arpa.		NS	a.ip6-servers.arpa.	; 199.180.182.53 2620:37:e000::53
ip6.arpa.		NS	b.ip6-servers.arpa.	; 199.253.182.182 2001:500:86::86
ip6.arpa.		NS	c.ip6-servers.arpa.	; 196.216.169.11 2001:43f8:110::11
ip6.arpa.		NS	d.ip6-servers.arpa.	; 200.7.86.53 2001:13c7:7012::53
ip6.arpa.		NS	e.ip6-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
ip6.arpa.		NS	f.ip6-servers.arpa.	; 193.0.9.2 2a13:27c0:30::2
ip6.arpa.	86400	IN	DS	13880 8 2 068554EFCB5861F42AF93EF8E79C442A86C16FC5652E6B6D2419ED527F344D17
ip6.arpa.	86400	IN	DS	45094 8 2 E6B54E0A20CE1EDBFCB6879C02F5782059CECB043A31D804A04AFA51AF01D5FB
ip6.arpa.	86400	IN	DS	64060 8 2 8A11501086330132BE2C23F22DEDF0634AD5FF668B4AA1988E172C6A2A4E5F7B
;  ip6.arpa. @a.ip6-servers.arpa (199.180.182.53) 90 ms [NOERROR qr]: referral to 0.8.2.ip6.arpa.
0.8.2.ip6.arpa.		NS	ns3.afrinic.net.	; 204.61.216.100 2001:500:14:6100:ad::1
0.8.2.ip6.arpa.		NS	ns4.lacnic.net.	; 190.112.52.35 2001:13c7:7020:210::35
0.8.2.ip6.arpa.		NS	lacnic.authdns.ripe.net.	; 193.0.9.11 2a13:27c0:30::11
0.8.2.ip6.arpa.		NS	a.arpa.dns.br.	; 200.160.11.50
0.8.2.ip6.arpa.		NS	ns2.lacnic.net.	; 200.3.13.11 2001:13c7:7002:3000::11
0.8.2.ip6.arpa.		NS	a.lactld.org.	; 200.0.68.10 2801:14:a000::10
0.8.2.ip6.arpa.		NS	rirns.arin.net.	; 199.253.249.53 2620:38:2000::53
0.8.2.ip6.arpa.		NS	ns.lacnic.net.	; 200.3.13.10 2001:13c7:7002:3000::10
0.8.2.ip6.arpa.		NS	ns4.apnic.net.	; 202.12.31.53 2001:dd8:12::53
0.8.2.ip6.arpa.	86400	IN	DS	63532 8 2 5601A3A05D954CA83B64D47D6BA7A52128858F2D1B5CA5FDFF7DEA215BC3556E
;  0.8.2.ip6.arpa. @rirns.arin.net (199.253.249.53) 90 ms [NOERROR qr]: referral to 0.0.8.f.3.0.8.2.ip6.arpa.
0.0.8.f.3.0.8.2.ip6.arpa.		NS	cruz.ns.cloudflare.com.	; 108.162.192.88 172.64.32.88 173.245.58.88 2606:4700:50::adf5:3a58 2803:f800:50::6ca2:c058 2a06:98c1:50::ac40:2058
0.0.8.f.3.0.8.2.ip6.arpa.		NS	kevin.ns.cloudflare.com.	; 108.162.193.191 172.64.33.191 173.245.59.191 2606:4700:58::adf5:3bbf 2803:f800:50::6ca2:c1bf 2a06:98c1:50::ac40:21bf
;  0.0.8.f.3.0.8.2.ip6.arpa. @kevin.ns.cloudflare.com (173.245.59.191) 6.8 ms [NOERROR qr aa]: answer
0.f.1.c.2.a.c.6.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.0.0.0.8.f.3.0.8.2.ip6.arpa.	1800	IN	PTR	tony.ns.cloudflare.com.

;; NAMESERVERS (SOA asked of each address)
;  cruz.ns.cloudflare.com [parent+zone]
;    108.162.192.88                          ok                        2387399957  7.0 ms
;    172.64.32.88                            ok                        2387399957  6.6 ms
;    173.245.58.88                           ok                        2387399957  7.2 ms
;    2606:4700:50::adf5:3a58                 ok                        2387399957  7.1 ms
;    2803:f800:50::6ca2:c058                 ok                        2387399957  7.1 ms
;    2a06:98c1:50::ac40:2058                 ok                        2387399957  7.0 ms
;  kevin.ns.cloudflare.com [parent+zone]
;    108.162.193.191                         ok                        2387399957  7.0 ms
;    172.64.33.191                           ok                        2387399957  7.0 ms
;    173.245.59.191                          ok                        2387399957  7.3 ms
;    2606:4700:58::adf5:3bbf                 ok                        2387399957  6.9 ms
;    2803:f800:50::6ca2:c1bf                 ok                        2387399957  7.4 ms
;    2a06:98c1:50::ac40:21bf                 ok                        2387399957  6.7 ms

;; DNSSEC: unsigned

;; HOSTS
;  cruz.ns.cloudflare.com (nameserver)
;    108.162.192.88                          PTR cruz.ns.cloudflare.com (confirmed)
;    172.64.32.88                            PTR cruz.ns.cloudflare.com (confirmed)
;    173.245.58.88                           PTR cruz.ns.cloudflare.com (confirmed)
;    2606:4700:50::adf5:3a58                 PTR cruz.ns.cloudflare.com (confirmed)
;    2803:f800:50::6ca2:c058                 PTR cruz.ns.cloudflare.com (confirmed)
;    2a06:98c1:50::ac40:2058                 PTR cruz.ns.cloudflare.com (confirmed)
;  kevin.ns.cloudflare.com (nameserver)
;    108.162.193.191                         PTR kevin.ns.cloudflare.com (confirmed)
;    172.64.33.191                           PTR kevin.ns.cloudflare.com (confirmed)
;    173.245.59.191                          PTR kevin.ns.cloudflare.com (confirmed)
;    2606:4700:58::adf5:3bbf                 PTR kevin.ns.cloudflare.com (confirmed)
;    2803:f800:50::6ca2:c1bf                 PTR kevin.ns.cloudflare.com (confirmed)
;    2a06:98c1:50::ac40:21bf                 PTR kevin.ns.cloudflare.com (confirmed)
;  tony.ns.cloudflare.com (PTR target)
;    108.162.193.240                         PTR tony.ns.cloudflare.com (confirmed)
;    172.64.33.240                           PTR tony.ns.cloudflare.com (confirmed)
;    173.245.59.240                          PTR tony.ns.cloudflare.com (confirmed)
;    2606:4700:58::adf5:3bf0                 PTR tony.ns.cloudflare.com (confirmed)
;    2803:f800:50::6ca2:c1f0                 PTR tony.ns.cloudflare.com (confirmed)
;    2a06:98c1:50::ac40:21f0                 PTR tony.ns.cloudflare.com (confirmed)

;; PUBLIC RESOLVERS
;  Cloudflare PTR   tony.ns.cloudflare.com.  ttl 1800
;  Google     PTR   tony.ns.cloudflare.com.  ttl 1316
;  Quad9      PTR   tony.ns.cloudflare.com.  ttl 1800
;  OpenDNS    PTR   tony.ns.cloudflare.com.  ttl 1800