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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.

106.14.209.108

108.209.14.106.in-addr.arpa

Zone 14.106.in-addr.arpa74 queries in 3.4 s2026-11-09 05:55:12 UTCNot DNSSEC-signed

WHOIS for 106.14.209.108 →TextJSON
  • Warning rdns2.alidns.com (2401:b180:4100::15) timed out for 14.106.in-addr.arpa.
  • Note All of 14.106.in-addr.arpa's nameservers are in one /24 network (140.205.122.0/24): one outage takes them all down.
  • Note 14.106.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of rdns2.alidns.com (140.205.122.243), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

3600PTRdns2.c01.nsone.net.cn.
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 e.root-servers.net 192.203.230.1034 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
  2. in-addr.arpa.asked b.in-addr-servers.arpa 199.253.183.1835.8 ms

    Referral to 106.in-addr.arpa. signed (1 DS)

    • ns1.apnic.net 203.119.42.53 2001:dd8:e::53
    • ns2.apnic.net 203.119.95.53 2001:ddd::53
    • ns3.lacnic.net 200.3.13.14 2001:13c7:7002:3000::14
    • apnic.authdns.ripe.net 193.0.9.9 2a13:27c0:30::9
    • rirns.arin.net 199.253.249.53 2620:38:2000::53

    No glue for ns1.apnic.net, ns2.apnic.net, ns3.lacnic.net, apnic.authdns.ripe.net, rirns.arin.net: addresses looked up via a resolver.

    199.180.182.53 failed: NOERROR

  3. 106.in-addr.arpa.asked ns1.apnic.net 203.119.42.53169 ms

    Referral to 14.106.in-addr.arpa. unsigned delegation

    • rdns2.alidns.com 140.205.122.243 2401:b180:4100::15
    • rdns1.alidns.com 140.205.122.253 2401:b180:4100::14

    No glue for rdns2.alidns.com, rdns1.alidns.com: addresses looked up via a resolver.

  4. 14.106.in-addr.arpa.asked rdns2.alidns.com 140.205.122.243195 ms

    Answer (authoritative):

    108.209.14.106.in-addr.arpa.3600PTRdns2.c01.nsone.net.cn.

Nameservers

Every address of every nameserver, asked for 14.106.in-addr.arpa's SOA. "Parent" means the 106.in-addr.arpa zone delegates to it; "zone" means 14.106.in-addr.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
rdns1.alidns.comparent + zone140.205.122.253 glueauthoritative20150114196.1 ms
2401:b180:4100::14 glueauthoritative2015011419212 ms
rdns2.alidns.comparent + zone140.205.122.243 glueauthoritative20150114196.0 ms
2401:b180:4100::15 gluetimed out1500 ms

DNSSEC

14.106.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)
rdns1.alidns.com
nameserver
140.205.122.253none
2401:b180:4100::14none
rdns2.alidns.com
nameserver
140.205.122.243none
2401:b180:4100::15none
dns2.c01.nsone.net.cn
PTR target
106.14.209.108dns2.c01.nsone.net.cn ✓

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 1.1.1.1dns2.c01.nsone.net.cn.
TTL 3600
Google 8.8.8.8dns2.c01.nsone.net.cn.
TTL 3600
Quad9 9.9.9.9dns2.c01.nsone.net.cn.
TTL 3600
OpenDNS 208.67.222.222dns2.c01.nsone.net.cn.
TTL 3600

Text dump

; DNS report for 108.209.14.106.in-addr.arpa (106.14.209.108)
; 2026-11-09 05:55:12 UTC, 74 queries in 3.38 s, zone 14.106.in-addr.arpa

;; FINDINGS
;  [WARN] rdns2.alidns.com (2401:b180:4100::15) timed out for 14.106.in-addr.arpa.
;  [INFO] All of 14.106.in-addr.arpa's nameservers are in one /24 network (140.205.122.0/24): one outage takes them all down.
;  [INFO] 14.106.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from rdns2.alidns.com (140.205.122.243))
108.209.14.106.in-addr.arpa.	3600	IN	PTR	dns2.c01.nsone.net.cn.

;; TRACE
;  108.209.14.106.in-addr.arpa PTR
;  . @e.root-servers.net (192.203.230.10) 34 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) 5.8 ms [NOERROR qr]: referral to 106.in-addr.arpa.
106.in-addr.arpa.		NS	ns1.apnic.net.	; 203.119.42.53 2001:dd8:e::53
106.in-addr.arpa.		NS	ns2.apnic.net.	; 203.119.95.53 2001:ddd::53
106.in-addr.arpa.		NS	ns3.lacnic.net.	; 200.3.13.14 2001:13c7:7002:3000::14
106.in-addr.arpa.		NS	apnic.authdns.ripe.net.	; 193.0.9.9 2a13:27c0:30::9
106.in-addr.arpa.		NS	rirns.arin.net.	; 199.253.249.53 2620:38:2000::53
106.in-addr.arpa.	86400	IN	DS	63627 13 2 96CB7C074DDF5120A8E6117C796E1ED61A22A453997028C45C2904E0946880A6
;  106.in-addr.arpa. @ns1.apnic.net (203.119.42.53) 169 ms [NOERROR qr]: referral to 14.106.in-addr.arpa.
14.106.in-addr.arpa.		NS	rdns2.alidns.com.	; 140.205.122.243 2401:b180:4100::15
14.106.in-addr.arpa.		NS	rdns1.alidns.com.	; 140.205.122.253 2401:b180:4100::14
;  14.106.in-addr.arpa. @rdns2.alidns.com (140.205.122.243) 195 ms [NOERROR qr aa]: answer
108.209.14.106.in-addr.arpa.	3600	IN	PTR	dns2.c01.nsone.net.cn.

;; NAMESERVERS (SOA asked of each address)
;  rdns1.alidns.com [parent+zone]
;    140.205.122.253                         ok                        2015011419  6.1 ms
;    2401:b180:4100::14                      ok                        2015011419  212 ms
;  rdns2.alidns.com [parent+zone]
;    140.205.122.243                         ok                        2015011419  6.0 ms
;    2401:b180:4100::15                      timed out                             1500 ms

;; DNSSEC: unsigned

;; HOSTS
;  rdns1.alidns.com (nameserver)
;    140.205.122.253                         PTR none
;    2401:b180:4100::14                      PTR none
;  rdns2.alidns.com (nameserver)
;    140.205.122.243                         PTR none
;    2401:b180:4100::15                      PTR none
;  dns2.c01.nsone.net.cn (PTR target)
;    106.14.209.108                          PTR dns2.c01.nsone.net.cn (confirmed)

;; PUBLIC RESOLVERS
;  Cloudflare PTR   dns2.c01.nsone.net.cn.  ttl 3600
;  Google     PTR   dns2.c01.nsone.net.cn.  ttl 3600
;  Quad9      PTR   dns2.c01.nsone.net.cn.  ttl 3600
;  OpenDNS    PTR   dns2.c01.nsone.net.cn.  ttl 3600