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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.

2001:4860:4860::8844

4.4.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa

Zone 0.6.8.4.1.0.0.2.ip6.arpa95 queries in 1.4 s2026-11-09 05:32:59 UTCNot DNSSEC-signed

WHOIS for 2001:4860:4860::8844 →TextJSON
  • Note 0.6.8.4.1.0.0.2.ip6.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of ns4.google.com (216.239.38.10), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

86400PTRdns.google.
ANY query: 1 records
86400PTRdns.google.

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 m.root-servers.net 202.12.27.3317 ms

    Referral to ip6.arpa. signed (3 DS)

    • b.ip6-servers.arpa 199.253.182.182 2001:500:86::86
    • d.ip6-servers.arpa 200.7.86.53 2001:13c7:7012::53
    • a.ip6-servers.arpa 199.180.182.53 2620:37:e000::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
    • c.ip6-servers.arpa 196.216.169.11 2001:43f8:110::11
  2. ip6.arpa.asked a.ip6-servers.arpa 199.180.182.5394 ms

    Referral to 8.4.1.0.0.2.ip6.arpa. signed (1 DS)

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

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

  3. 8.4.1.0.0.2.ip6.arpa.asked arin.authdns.ripe.net 193.0.9.1012 ms

    Referral to 0.6.8.4.1.0.0.2.ip6.arpa. unsigned delegation

    • ns3.google.com 216.239.36.10 2001:4860:4802:36::a
    • ns4.google.com 216.239.38.10 2001:4860:4802:38::a
    • ns1.google.com 216.239.32.10 2001:4860:4802:32::a
    • ns2.google.com 216.239.34.10 2001:4860:4802:34::a

    No glue for ns3.google.com, ns4.google.com, ns1.google.com, ns2.google.com: addresses looked up via a resolver.

    199.180.180.63 failed: NOERROR

  4. 0.6.8.4.1.0.0.2.ip6.arpa.asked ns4.google.com 216.239.38.1011 ms

    Answer (authoritative):

    4.4.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa.86400PTRdns.google.

Nameservers

Every address of every nameserver, asked for 0.6.8.4.1.0.0.2.ip6.arpa's SOA. "Parent" means the 8.4.1.0.0.2.ip6.arpa zone delegates to it; "zone" means 0.6.8.4.1.0.0.2.ip6.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
ns1.google.comparent216.239.32.10 glueauthoritative101668721014 ms
2001:4860:4802:32::a glueauthoritative101668721016 ms
ns2.google.comparent216.239.34.10 glueauthoritative101668721027 ms
2001:4860:4802:34::a glueauthoritative101668721028 ms
ns3.google.comparent216.239.36.10 glueauthoritative101668721014 ms
2001:4860:4802:36::a glueauthoritative101668721015 ms
ns4.google.comparent216.239.38.10 glueauthoritative10166872107.2 ms
2001:4860:4802:38::a glueauthoritative101668721010 ms

DNSSEC

0.6.8.4.1.0.0.2.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)
ns1.google.com
nameserver
216.239.32.10ns1.google.com ✓
2001:4860:4802:32::ans1.google.com ✓
ns2.google.com
nameserver
216.239.34.10ns2.google.com ✓
2001:4860:4802:34::ans2.google.com ✓
ns3.google.com
nameserver
216.239.36.10ns3.google.com ✓
2001:4860:4802:36::ans3.google.com ✓
ns4.google.com
nameserver
216.239.38.10ns4.google.com ✓
2001:4860:4802:38::ans4.google.com ✓
dns.google
PTR target
8.8.8.8dns.google ✓
8.8.4.4dns.google ✓
2001:4860:4860::8844dns.google ✓
2001:4860:4860::8888dns.google ✓

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 1.1.1.1dns.google.
TTL 86400
Google 8.8.8.8dns.google.
TTL 1783
Quad9 9.9.9.9dns.google.
TTL 43200
OpenDNS 208.67.222.222dns.google.
TTL 86400

Text dump

; DNS report for 4.4.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa (2001:4860:4860::8844)
; 2026-11-09 05:32:59 UTC, 95 queries in 1.35 s, zone 0.6.8.4.1.0.0.2.ip6.arpa

;; FINDINGS
;  [INFO] 0.6.8.4.1.0.0.2.ip6.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from ns4.google.com (216.239.38.10))
4.4.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa.	86400	IN	PTR	dns.google.

;; TRACE
;  4.4.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa PTR
;  . @m.root-servers.net (202.12.27.33) 17 ms [NOERROR qr]: referral to ip6.arpa.
ip6.arpa.		NS	b.ip6-servers.arpa.	; 199.253.182.182 2001:500:86::86
ip6.arpa.		NS	d.ip6-servers.arpa.	; 200.7.86.53 2001:13c7:7012::53
ip6.arpa.		NS	a.ip6-servers.arpa.	; 199.180.182.53 2620:37:e000::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.		NS	c.ip6-servers.arpa.	; 196.216.169.11 2001:43f8:110::11
ip6.arpa.	86400	IN	DS	64060 8 2 8A11501086330132BE2C23F22DEDF0634AD5FF668B4AA1988E172C6A2A4E5F7B
ip6.arpa.	86400	IN	DS	13880 8 2 068554EFCB5861F42AF93EF8E79C442A86C16FC5652E6B6D2419ED527F344D17
ip6.arpa.	86400	IN	DS	45094 8 2 E6B54E0A20CE1EDBFCB6879C02F5782059CECB043A31D804A04AFA51AF01D5FB
;  ip6.arpa. @a.ip6-servers.arpa (199.180.182.53) 94 ms [NOERROR qr]: referral to 8.4.1.0.0.2.ip6.arpa.
8.4.1.0.0.2.ip6.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
8.4.1.0.0.2.ip6.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
8.4.1.0.0.2.ip6.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
8.4.1.0.0.2.ip6.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
8.4.1.0.0.2.ip6.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
8.4.1.0.0.2.ip6.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
8.4.1.0.0.2.ip6.arpa.	86400	IN	DS	37714 8 2 EEF58C48BDDB0C677FA70E67F45EC5818C3C7950F8672103353E8DE9609E3719
;  8.4.1.0.0.2.ip6.arpa. @arin.authdns.ripe.net (193.0.9.10) 12 ms [NOERROR qr]: referral to 0.6.8.4.1.0.0.2.ip6.arpa.
0.6.8.4.1.0.0.2.ip6.arpa.		NS	ns3.google.com.	; 216.239.36.10 2001:4860:4802:36::a
0.6.8.4.1.0.0.2.ip6.arpa.		NS	ns4.google.com.	; 216.239.38.10 2001:4860:4802:38::a
0.6.8.4.1.0.0.2.ip6.arpa.		NS	ns1.google.com.	; 216.239.32.10 2001:4860:4802:32::a
0.6.8.4.1.0.0.2.ip6.arpa.		NS	ns2.google.com.	; 216.239.34.10 2001:4860:4802:34::a
;  0.6.8.4.1.0.0.2.ip6.arpa. @ns4.google.com (216.239.38.10) 11 ms [NOERROR qr aa]: answer
4.4.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa.	86400	IN	PTR	dns.google.

;; NAMESERVERS (SOA asked of each address)
;  ns1.google.com [parent]
;    216.239.32.10                           ok                        1016687210  14 ms
;    2001:4860:4802:32::a                    ok                        1016687210  16 ms
;  ns2.google.com [parent]
;    216.239.34.10                           ok                        1016687210  27 ms
;    2001:4860:4802:34::a                    ok                        1016687210  28 ms
;  ns3.google.com [parent]
;    216.239.36.10                           ok                        1016687210  14 ms
;    2001:4860:4802:36::a                    ok                        1016687210  15 ms
;  ns4.google.com [parent]
;    216.239.38.10                           ok                        1016687210  7.2 ms
;    2001:4860:4802:38::a                    ok                        1016687210  10 ms

;; DNSSEC: unsigned

;; HOSTS
;  ns1.google.com (nameserver)
;    216.239.32.10                           PTR ns1.google.com (confirmed)
;    2001:4860:4802:32::a                    PTR ns1.google.com (confirmed)
;  ns2.google.com (nameserver)
;    216.239.34.10                           PTR ns2.google.com (confirmed)
;    2001:4860:4802:34::a                    PTR ns2.google.com (confirmed)
;  ns3.google.com (nameserver)
;    216.239.36.10                           PTR ns3.google.com (confirmed)
;    2001:4860:4802:36::a                    PTR ns3.google.com (confirmed)
;  ns4.google.com (nameserver)
;    216.239.38.10                           PTR ns4.google.com (confirmed)
;    2001:4860:4802:38::a                    PTR ns4.google.com (confirmed)
;  dns.google (PTR target)
;    8.8.8.8                                 PTR dns.google (confirmed)
;    8.8.4.4                                 PTR dns.google (confirmed)
;    2001:4860:4860::8844                    PTR dns.google (confirmed)
;    2001:4860:4860::8888                    PTR dns.google (confirmed)

;; PUBLIC RESOLVERS
;  Cloudflare PTR   dns.google.  ttl 86400
;  Google     PTR   dns.google.  ttl 1783
;  Quad9      PTR   dns.google.  ttl 43200
;  OpenDNS    PTR   dns.google.  ttl 86400