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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.

69.252.250.103

103.250.252.69.in-addr.arpa

Zone 252.69.in-addr.arpa96 queries in 1.6 s2026-11-09 05:22:48 UTCNot DNSSEC-signed

WHOIS for 69.252.250.103 →TextJSON
  • Note 252.69.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of dns101.comcast.net (69.252.250.103), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

7200PTRdns101.comcast.net.
ANY query: 1 records
7200PTRdns101.comcast.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 h.root-servers.net 198.97.190.536.2 ms

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

    • 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
    • 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
    • e.in-addr-servers.arpa 203.119.86.101 2001:dd8:6::101
    • f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1

    192.33.4.12 failed: NOERROR

  2. in-addr.arpa.asked b.in-addr-servers.arpa 199.253.183.1836.0 ms

    Referral to 69.in-addr.arpa. signed (1 DS)

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

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

    193.0.9.1 failed: NOERROR

  3. 69.in-addr.arpa.asked arin.authdns.ripe.net 193.0.9.1011 ms

    Referral to 252.69.in-addr.arpa. unsigned delegation

    • dns104.comcast.net 68.87.68.244 2001:558:100a:5:68:87:68:244
    • dns103.comcast.net 68.87.76.228 2001:558:1014:c:68:87:76:228
    • dns102.comcast.net 68.87.85.132 2001:558:1004:7:68:87:85:132
    • dns105.comcast.net 68.87.72.244 2001:558:100e:5:68:87:72:244
    • dns101.comcast.net 69.252.250.103 2001:558:fe23:8:69:252:250:103

    No glue for dns104.comcast.net, dns103.comcast.net, dns102.comcast.net, dns105.comcast.net, dns101.comcast.net: addresses looked up via a resolver.

    199.180.180.63 failed: NOERROR

  4. 252.69.in-addr.arpa.asked dns101.comcast.net 69.252.250.10399 ms

    Answer (authoritative):

    103.250.252.69.in-addr.arpa.7200PTRdns101.comcast.net.

Nameservers

Every address of every nameserver, asked for 252.69.in-addr.arpa's SOA. "Parent" means the 69.in-addr.arpa zone delegates to it; "zone" means 252.69.in-addr.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
dns101.comcast.netparent + zone69.252.250.103 glueauthoritative108529101 ms
2001:558:fe23:8:69:252:250:103 glueauthoritative108529100 ms
dns102.comcast.netparent + zone68.87.85.132 glueauthoritative108529139 ms
2001:558:1004:7:68:87:85:132 glueauthoritative108529154 ms
dns103.comcast.netparent + zone68.87.76.228 glueauthoritative108529164 ms
2001:558:1014:c:68:87:76:228 glueauthoritative108529159 ms
dns104.comcast.netparent + zone68.87.68.244 glueauthoritative108529121 ms
2001:558:100a:5:68:87:68:244 glueauthoritative108529108 ms
dns105.comcast.netparent + zone68.87.72.244 glueauthoritative108529125 ms
2001:558:100e:5:68:87:72:244 glueauthoritative108529114 ms

DNSSEC

252.69.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)
dns101.comcast.net
nameserver · PTR target
69.252.250.103dns101.comcast.net ✓
2001:558:fe23:8:69:252:250:103dns101.comcast.net ✓
dns102.comcast.net
nameserver
68.87.85.132dns102.comcast.net ✓
2001:558:1004:7:68:87:85:132dns102.comcast.net ✓
dns103.comcast.net
nameserver
68.87.76.228dns103.comcast.net ✓
2001:558:1014:c:68:87:76:228dns103.comcast.net ✓
dns104.comcast.net
nameserver
68.87.68.244dns104.comcast.net ✓
2001:558:100a:5:68:87:68:244dns104.comcast.net ✓
dns105.comcast.net
nameserver
68.87.72.244dns105.comcast.net ✓
2001:558:100e:5:68:87:72:244dns105.comcast.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 1.1.1.1dns101.comcast.net.
TTL 7200
Google 8.8.8.8dns101.comcast.net.
TTL 7200
Quad9 9.9.9.9dns101.comcast.net.
TTL 7200
OpenDNS 208.67.222.222dns101.comcast.net.
TTL 6592

Text dump

; DNS report for 103.250.252.69.in-addr.arpa (69.252.250.103)
; 2026-11-09 05:22:48 UTC, 96 queries in 1.63 s, zone 252.69.in-addr.arpa

;; FINDINGS
;  [INFO] 252.69.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from dns101.comcast.net (69.252.250.103))
103.250.252.69.in-addr.arpa.	7200	IN	PTR	dns101.comcast.net.

;; TRACE
;  103.250.252.69.in-addr.arpa PTR
;  . @h.root-servers.net (198.97.190.53) 6.2 ms [NOERROR qr]: referral to in-addr.arpa.
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	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	e.in-addr-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
in-addr.arpa.		NS	f.in-addr-servers.arpa.	; 193.0.9.1 2a13:27c0:30::1
in-addr.arpa.	86400	IN	DS	47054 8 2 5CAFCCEC201D1933B4C9F6A9C8F51E51F3B39979058AC21B8DF1B1F281CBC6F2
in-addr.arpa.	86400	IN	DS	53696 8 2 13E5501C56B20394DA921B51412D48B7089C5EB6957A7C58553C4D4D424F04DF
in-addr.arpa.	86400	IN	DS	54956 8 2 E0E2BF5CFBD66572CA05EC18267D91509BA6A9405AF05C3FD4141DFA45200C08
in-addr.arpa.	86400	IN	DS	63982 8 2 AAF4FB5D213EF25AE44679032EBE3514C487D7ABD99D7F5FEC3383D030733C73
;  in-addr.arpa. @b.in-addr-servers.arpa (199.253.183.183) 6.0 ms [NOERROR qr]: referral to 69.in-addr.arpa.
69.in-addr.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
69.in-addr.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
69.in-addr.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
69.in-addr.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
69.in-addr.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
69.in-addr.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
69.in-addr.arpa.	86400	IN	DS	13825 8 2 FF256D03B5E30D637BB60B592210DCB2E07A96A8B804CA5F4CCDD656AEE6240D
;  69.in-addr.arpa. @arin.authdns.ripe.net (193.0.9.10) 11 ms [NOERROR qr]: referral to 252.69.in-addr.arpa.
252.69.in-addr.arpa.		NS	dns104.comcast.net.	; 68.87.68.244 2001:558:100a:5:68:87:68:244
252.69.in-addr.arpa.		NS	dns103.comcast.net.	; 68.87.76.228 2001:558:1014:c:68:87:76:228
252.69.in-addr.arpa.		NS	dns102.comcast.net.	; 68.87.85.132 2001:558:1004:7:68:87:85:132
252.69.in-addr.arpa.		NS	dns105.comcast.net.	; 68.87.72.244 2001:558:100e:5:68:87:72:244
252.69.in-addr.arpa.		NS	dns101.comcast.net.	; 69.252.250.103 2001:558:fe23:8:69:252:250:103
;  252.69.in-addr.arpa. @dns101.comcast.net (69.252.250.103) 99 ms [NOERROR qr aa]: answer
103.250.252.69.in-addr.arpa.	7200	IN	PTR	dns101.comcast.net.

;; NAMESERVERS (SOA asked of each address)
;  dns101.comcast.net [parent+zone]
;    69.252.250.103                          ok                        108529      101 ms
;    2001:558:fe23:8:69:252:250:103          ok                        108529      100 ms
;  dns102.comcast.net [parent+zone]
;    68.87.85.132                            ok                        108529      139 ms
;    2001:558:1004:7:68:87:85:132            ok                        108529      154 ms
;  dns103.comcast.net [parent+zone]
;    68.87.76.228                            ok                        108529      164 ms
;    2001:558:1014:c:68:87:76:228            ok                        108529      159 ms
;  dns104.comcast.net [parent+zone]
;    68.87.68.244                            ok                        108529      121 ms
;    2001:558:100a:5:68:87:68:244            ok                        108529      108 ms
;  dns105.comcast.net [parent+zone]
;    68.87.72.244                            ok                        108529      125 ms
;    2001:558:100e:5:68:87:72:244            ok                        108529      114 ms

;; DNSSEC: unsigned

;; HOSTS
;  dns101.comcast.net (nameserver; PTR target)
;    69.252.250.103                          PTR dns101.comcast.net (confirmed)
;    2001:558:fe23:8:69:252:250:103          PTR dns101.comcast.net (confirmed)
;  dns102.comcast.net (nameserver)
;    68.87.85.132                            PTR dns102.comcast.net (confirmed)
;    2001:558:1004:7:68:87:85:132            PTR dns102.comcast.net (confirmed)
;  dns103.comcast.net (nameserver)
;    68.87.76.228                            PTR dns103.comcast.net (confirmed)
;    2001:558:1014:c:68:87:76:228            PTR dns103.comcast.net (confirmed)
;  dns104.comcast.net (nameserver)
;    68.87.68.244                            PTR dns104.comcast.net (confirmed)
;    2001:558:100a:5:68:87:68:244            PTR dns104.comcast.net (confirmed)
;  dns105.comcast.net (nameserver)
;    68.87.72.244                            PTR dns105.comcast.net (confirmed)
;    2001:558:100e:5:68:87:72:244            PTR dns105.comcast.net (confirmed)

;; PUBLIC RESOLVERS
;  Cloudflare PTR   dns101.comcast.net.  ttl 7200
;  Google     PTR   dns101.comcast.net.  ttl 7200
;  Quad9      PTR   dns101.comcast.net.  ttl 7200
;  OpenDNS    PTR   dns101.comcast.net.  ttl 6592