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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.

74.125.71.109

109.71.125.74.in-addr.arpa

Zone 125.74.in-addr.arpa94 queries in 0.8 s2026-11-09 05:45:09 UTCNot DNSSEC-signed

WHOIS for 74.125.71.109 →TextJSON
  • Note 125.74.in-addr.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

86400PTRwn-in-f109.1e100.net.
ANY query: 1 records
86400PTRwn-in-f109.1e100.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 g.root-servers.net 192.112.36.426 ms

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

    • e.in-addr-servers.arpa 203.119.86.101 2001:dd8:6::101
    • c.in-addr-servers.arpa 196.216.169.10 2001:43f8:110::10
    • 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
    • d.in-addr-servers.arpa 200.10.60.53 2001:13c7:7010::53
    • f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1
  2. in-addr.arpa.asked a.in-addr-servers.arpa 199.180.182.5392 ms

    Referral to 74.in-addr.arpa. signed (1 DS)

    • y.arin.net 192.82.134.30 2001:500:127::30
    • 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
    • arin.authdns.ripe.net 193.0.9.10 2a13:27c0:30::10
    • z.arin.net 199.180.180.63 2001:500:f0::63

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

    203.119.86.101 failed: NOERROR

  3. 74.in-addr.arpa.asked u.arin.net 204.61.216.505.8 ms

    Referral to 125.74.in-addr.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.

  4. 125.74.in-addr.arpa.asked ns4.google.com 216.239.38.106.8 ms

    Answer (authoritative):

    109.71.125.74.in-addr.arpa.86400PTRwn-in-f109.1e100.net.

Nameservers

Every address of every nameserver, asked for 125.74.in-addr.arpa's SOA. "Parent" means the 74.in-addr.arpa zone delegates to it; "zone" means 125.74.in-addr.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
ns1.google.comparent + zone216.239.32.10 glueauthoritative101668721013 ms
2001:4860:4802:32::a glueauthoritative101668721016 ms
ns2.google.comparent + zone216.239.34.10 glueauthoritative101668721027 ms
2001:4860:4802:34::a glueauthoritative101668721029 ms
ns3.google.comparent + zone216.239.36.10 glueauthoritative101668721013 ms
2001:4860:4802:36::a glueauthoritative101668721016 ms
ns4.google.comparent + zone216.239.38.10 glueauthoritative10166872106.2 ms
2001:4860:4802:38::a glueauthoritative10166872108.9 ms

DNSSEC

125.74.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)
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 ✓
wn-in-f109.1e100.net
PTR target
74.125.71.109wn-in-f109.1e100.net ✓
2a00:1450:400c:c02::6dwn-in-x6d.1e100.net, wn-in-f109.1e100.net ✓

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 1.1.1.1wn-in-f109.1e100.net.
TTL 86400
Google 8.8.8.8wn-in-f109.1e100.net.
TTL 12596
Quad9 9.9.9.9wn-in-f109.1e100.net.
TTL 43200
OpenDNS 208.67.222.222wn-in-f109.1e100.net.
TTL 86400

Text dump

; DNS report for 109.71.125.74.in-addr.arpa (74.125.71.109)
; 2026-11-09 05:45:09 UTC, 94 queries in 0.83 s, zone 125.74.in-addr.arpa

;; FINDINGS
;  [INFO] 125.74.in-addr.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))
109.71.125.74.in-addr.arpa.	86400	IN	PTR	wn-in-f109.1e100.net.

;; TRACE
;  109.71.125.74.in-addr.arpa PTR
;  . @g.root-servers.net (192.112.36.4) 26 ms [NOERROR qr]: referral to in-addr.arpa.
in-addr.arpa.		NS	e.in-addr-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
in-addr.arpa.		NS	c.in-addr-servers.arpa.	; 196.216.169.10 2001:43f8:110::10
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	d.in-addr-servers.arpa.	; 200.10.60.53 2001:13c7:7010::53
in-addr.arpa.		NS	f.in-addr-servers.arpa.	; 193.0.9.1 2a13:27c0:30::1
in-addr.arpa.	86400	IN	DS	53696 8 2 13E5501C56B20394DA921B51412D48B7089C5EB6957A7C58553C4D4D424F04DF
in-addr.arpa.	86400	IN	DS	47054 8 2 5CAFCCEC201D1933B4C9F6A9C8F51E51F3B39979058AC21B8DF1B1F281CBC6F2
in-addr.arpa.	86400	IN	DS	63982 8 2 AAF4FB5D213EF25AE44679032EBE3514C487D7ABD99D7F5FEC3383D030733C73
in-addr.arpa.	86400	IN	DS	54956 8 2 E0E2BF5CFBD66572CA05EC18267D91509BA6A9405AF05C3FD4141DFA45200C08
;  in-addr.arpa. @a.in-addr-servers.arpa (199.180.182.53) 92 ms [NOERROR qr]: referral to 74.in-addr.arpa.
74.in-addr.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
74.in-addr.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
74.in-addr.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
74.in-addr.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
74.in-addr.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
74.in-addr.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
74.in-addr.arpa.	86400	IN	DS	28591 8 2 CF40EF51C48EF5EDBA1746B717500DC0EB920225F3E053512A3540F7F7101A3C
;  74.in-addr.arpa. @u.arin.net (204.61.216.50) 5.8 ms [NOERROR qr]: referral to 125.74.in-addr.arpa.
125.74.in-addr.arpa.		NS	ns3.google.com.	; 216.239.36.10 2001:4860:4802:36::a
125.74.in-addr.arpa.		NS	ns4.google.com.	; 216.239.38.10 2001:4860:4802:38::a
125.74.in-addr.arpa.		NS	ns1.google.com.	; 216.239.32.10 2001:4860:4802:32::a
125.74.in-addr.arpa.		NS	ns2.google.com.	; 216.239.34.10 2001:4860:4802:34::a
;  125.74.in-addr.arpa. @ns4.google.com (216.239.38.10) 6.8 ms [NOERROR qr aa]: answer
109.71.125.74.in-addr.arpa.	86400	IN	PTR	wn-in-f109.1e100.net.

;; NAMESERVERS (SOA asked of each address)
;  ns1.google.com [parent+zone]
;    216.239.32.10                           ok                        1016687210  13 ms
;    2001:4860:4802:32::a                    ok                        1016687210  16 ms
;  ns2.google.com [parent+zone]
;    216.239.34.10                           ok                        1016687210  27 ms
;    2001:4860:4802:34::a                    ok                        1016687210  29 ms
;  ns3.google.com [parent+zone]
;    216.239.36.10                           ok                        1016687210  13 ms
;    2001:4860:4802:36::a                    ok                        1016687210  16 ms
;  ns4.google.com [parent+zone]
;    216.239.38.10                           ok                        1016687210  6.2 ms
;    2001:4860:4802:38::a                    ok                        1016687210  8.9 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)
;  wn-in-f109.1e100.net (PTR target)
;    74.125.71.109                           PTR wn-in-f109.1e100.net (confirmed)
;    2a00:1450:400c:c02::6d                  PTR wn-in-x6d.1e100.net, wn-in-f109.1e100.net (confirmed)

;; PUBLIC RESOLVERS
;  Cloudflare PTR   wn-in-f109.1e100.net.  ttl 86400
;  Google     PTR   wn-in-f109.1e100.net.  ttl 12596
;  Quad9      PTR   wn-in-f109.1e100.net.  ttl 43200
;  OpenDNS    PTR   wn-in-f109.1e100.net.  ttl 86400