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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.

2620:1ec:8ec:700::5

5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa

Zone c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa113 queries in 2.0 s2026-11-09 06:13:06 UTCNot DNSSEC-signed

WHOIS for 2620:1ec:8ec:700::5 →TextJSON
  • Note c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of ns2-05.azure-dns.net (150.171.21.5), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

3600PTRns2-05.azure-dns.net.

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 a.root-servers.net 198.41.0.412 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
    • f.ip6-servers.arpa 193.0.9.2 2a13:27c0:30::2
    • a.ip6-servers.arpa 199.180.182.53 2620:37:e000::53
    • c.ip6-servers.arpa 196.216.169.11 2001:43f8:110::11
    • e.ip6-servers.arpa 203.119.86.101 2001:dd8:6::101

    202.12.27.33 failed: NOERROR

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

    Referral to 1.0.0.2.6.2.ip6.arpa. signed (1 DS)

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

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

    196.216.169.11 failed: NOERROR

  3. 1.0.0.2.6.2.ip6.arpa.asked arin.authdns.ripe.net 193.0.9.1011 ms

    Referral to 0.c.e.1.0.0.2.6.2.ip6.arpa. unsigned delegation

    • ns1-08.azure-dns.com 13.107.236.8 2603:1061:0:700::8
    • ns2-08.azure-dns.net 150.171.21.8 2620:1ec:8ec:700::8
    • ns3-08.azure-dns.org 204.14.183.8 2a01:111:4000:700::8
    • ns4-08.azure-dns.info 208.84.5.8 2620:1ec:bda:700::8

    No glue for ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info: addresses looked up via a resolver.

  4. 0.c.e.1.0.0.2.6.2.ip6.arpa.asked ns3-08.azure-dns.org 204.14.183.87.0 ms

    Referral to c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa. unsigned delegation

    • ns4-05.azure-dns.info 208.84.5.5 2620:1ec:bda:700::5
    • ns3-05.azure-dns.org 204.14.183.5 2a01:111:4000:700::5
    • ns2-05.azure-dns.net 150.171.21.5 2620:1ec:8ec:700::5
    • ns1-05.azure-dns.com 13.107.236.5 2603:1061:0:700::5

    No glue for ns4-05.azure-dns.info, ns3-05.azure-dns.org, ns2-05.azure-dns.net, ns1-05.azure-dns.com: addresses looked up via a resolver.

    150.171.21.8 failed: NOERROR

  5. c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.asked ns3-05.azure-dns.org 204.14.183.56.8 ms

    Answer (authoritative):

    5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.3600PTRns2-05.azure-dns.net.

Nameservers

Every address of every nameserver, asked for c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa's SOA. "Parent" means the 0.c.e.1.0.0.2.6.2.ip6.arpa zone delegates to it; "zone" means c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
ns1-05.azure-dns.comparent + zone13.107.236.5 glueauthoritative16.2 ms
2603:1061:0:700::5 glueauthoritative16.1 ms
ns2-05.azure-dns.netparent + zone150.171.21.5 glueauthoritative16.1 ms
2620:1ec:8ec:700::5 glueauthoritative17.3 ms
ns3-05.azure-dns.orgparent + zone204.14.183.5 glueauthoritative17.2 ms
2a01:111:4000:700::5 glueauthoritative17.0 ms
ns4-05.azure-dns.infoparent + zone208.84.5.5 glueauthoritative17.1 ms
2620:1ec:bda:700::5 glueauthoritative16.9 ms

DNSSEC

c.e.8.0.c.e.1.0.0.2.6.2.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)
ns1-05.azure-dns.com
nameserver
13.107.236.5ns1-05.azure-dns.com ✓
2603:1061:0:700::5ns1-05.azure-dns.com ✓
ns2-05.azure-dns.net
nameserver · PTR target
150.171.21.5ns2-05.azure-dns.net ✓
2620:1ec:8ec:700::5ns2-05.azure-dns.net ✓
ns3-05.azure-dns.org
nameserver
204.14.183.5ns3-05.azure-dns.org ✓
2a01:111:4000:700::5ns3-05.azure-dns.org ✓
ns4-05.azure-dns.info
nameserver
208.84.5.5ns4-05.azure-dns.info ✓
2620:1ec:bda:700::5ns4-05.azure-dns.info ✓

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 1.1.1.1ns2-05.azure-dns.net.
TTL 3600
Google 8.8.8.8ns2-05.azure-dns.net.
TTL 3600
Quad9 9.9.9.9ns2-05.azure-dns.net.
TTL 3600
OpenDNS 208.67.222.222ns2-05.azure-dns.net.
TTL 3600

Text dump

; DNS report for 5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa (2620:1ec:8ec:700::5)
; 2026-11-09 06:13:06 UTC, 113 queries in 2.00 s, zone c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa

;; FINDINGS
;  [INFO] c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from ns2-05.azure-dns.net (150.171.21.5))
5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.	3600	IN	PTR	ns2-05.azure-dns.net.

;; TRACE
;  5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa PTR
;  . @a.root-servers.net (198.41.0.4) 12 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	f.ip6-servers.arpa.	; 193.0.9.2 2a13:27c0:30::2
ip6.arpa.		NS	a.ip6-servers.arpa.	; 199.180.182.53 2620:37:e000::53
ip6.arpa.		NS	c.ip6-servers.arpa.	; 196.216.169.11 2001:43f8:110::11
ip6.arpa.		NS	e.ip6-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
ip6.arpa.	86400	IN	DS	13880 8 2 068554EFCB5861F42AF93EF8E79C442A86C16FC5652E6B6D2419ED527F344D17
ip6.arpa.	86400	IN	DS	64060 8 2 8A11501086330132BE2C23F22DEDF0634AD5FF668B4AA1988E172C6A2A4E5F7B
ip6.arpa.	86400	IN	DS	45094 8 2 E6B54E0A20CE1EDBFCB6879C02F5782059CECB043A31D804A04AFA51AF01D5FB
;  ip6.arpa. @a.ip6-servers.arpa (199.180.182.53) 90 ms [NOERROR qr]: referral to 1.0.0.2.6.2.ip6.arpa.
1.0.0.2.6.2.ip6.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
1.0.0.2.6.2.ip6.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
1.0.0.2.6.2.ip6.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
1.0.0.2.6.2.ip6.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
1.0.0.2.6.2.ip6.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
1.0.0.2.6.2.ip6.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
1.0.0.2.6.2.ip6.arpa.	86400	IN	DS	18796 8 2 28289A2B5A02DFF9893B632884858E6E0A7E8D3E21D12F21C48C4EF9E20EA8C4
;  1.0.0.2.6.2.ip6.arpa. @arin.authdns.ripe.net (193.0.9.10) 11 ms [NOERROR qr]: referral to 0.c.e.1.0.0.2.6.2.ip6.arpa.
0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns1-08.azure-dns.com.	; 13.107.236.8 2603:1061:0:700::8
0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns2-08.azure-dns.net.	; 150.171.21.8 2620:1ec:8ec:700::8
0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns3-08.azure-dns.org.	; 204.14.183.8 2a01:111:4000:700::8
0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns4-08.azure-dns.info.	; 208.84.5.8 2620:1ec:bda:700::8
;  0.c.e.1.0.0.2.6.2.ip6.arpa. @ns3-08.azure-dns.org (204.14.183.8) 7.0 ms [NOERROR qr ad]: referral to c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.
c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns4-05.azure-dns.info.	; 208.84.5.5 2620:1ec:bda:700::5
c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns3-05.azure-dns.org.	; 204.14.183.5 2a01:111:4000:700::5
c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns2-05.azure-dns.net.	; 150.171.21.5 2620:1ec:8ec:700::5
c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.		NS	ns1-05.azure-dns.com.	; 13.107.236.5 2603:1061:0:700::5
;  c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa. @ns3-05.azure-dns.org (204.14.183.5) 6.8 ms [NOERROR qr aa ad]: answer
5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.c.e.8.0.c.e.1.0.0.2.6.2.ip6.arpa.	3600	IN	PTR	ns2-05.azure-dns.net.

;; NAMESERVERS (SOA asked of each address)
;  ns1-05.azure-dns.com [parent+zone]
;    13.107.236.5                            ok                        1           6.2 ms
;    2603:1061:0:700::5                      ok                        1           6.1 ms
;  ns2-05.azure-dns.net [parent+zone]
;    150.171.21.5                            ok                        1           6.1 ms
;    2620:1ec:8ec:700::5                     ok                        1           7.3 ms
;  ns3-05.azure-dns.org [parent+zone]
;    204.14.183.5                            ok                        1           7.2 ms
;    2a01:111:4000:700::5                    ok                        1           7.0 ms
;  ns4-05.azure-dns.info [parent+zone]
;    208.84.5.5                              ok                        1           7.1 ms
;    2620:1ec:bda:700::5                     ok                        1           6.9 ms

;; DNSSEC: unsigned

;; HOSTS
;  ns1-05.azure-dns.com (nameserver)
;    13.107.236.5                            PTR ns1-05.azure-dns.com (confirmed)
;    2603:1061:0:700::5                      PTR ns1-05.azure-dns.com (confirmed)
;  ns2-05.azure-dns.net (nameserver; PTR target)
;    150.171.21.5                            PTR ns2-05.azure-dns.net (confirmed)
;    2620:1ec:8ec:700::5                     PTR ns2-05.azure-dns.net (confirmed)
;  ns3-05.azure-dns.org (nameserver)
;    204.14.183.5                            PTR ns3-05.azure-dns.org (confirmed)
;    2a01:111:4000:700::5                    PTR ns3-05.azure-dns.org (confirmed)
;  ns4-05.azure-dns.info (nameserver)
;    208.84.5.5                              PTR ns4-05.azure-dns.info (confirmed)
;    2620:1ec:bda:700::5                     PTR ns4-05.azure-dns.info (confirmed)

;; PUBLIC RESOLVERS
;  Cloudflare PTR   ns2-05.azure-dns.net.  ttl 3600
;  Google     PTR   ns2-05.azure-dns.net.  ttl 3600
;  Quad9      PTR   ns2-05.azure-dns.net.  ttl 3600
;  OpenDNS    PTR   ns2-05.azure-dns.net.  ttl 3600