ko-zan.com - robtex.com

ko-zan.com

DNSSEC⚠️ Not signed
A202.172.25.12🇯🇵 DRNET202.172.24.0/21
PTRb11.coreserver.jp
NSns1.value-domain.com ⭐
A172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.value-domain.com
A172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.53.115🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns3.value-domain.com ⚠️ Not in zone NS records
A172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns4.value-domain.com ⚠️ Not in zone NS records
A172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.53.115🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns5.value-domain.com ⚠️ Not in zone NS records
A172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXko-zan.com ⭐
A202.172.25.12🇯🇵 DRNET202.172.24.0/21
PTRb11.coreserver.jp
TXTv=spf1 ip4:202.172.25.12 include:mxr.valueserver.jp ~all
SOAns1.value-domain.comhostmaster@ko-zan.com 2026-02-12 #18

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778714291

MX for

ko-zan.com

Same first word

ko-zan.com

Similar names

oz-kan.net
za-kon.ru
za-kon.su
zona-k.com
zak-on.ru
oz-kan.com.tr
za-kon.life
a-oknz.com

DNS History

19 records (7 active, 12 former)

200920112013201520172019202120232025NSns1.value-domain.comns2.value-domain.comns3.value-domain.comns4.value-domain.comns5.value-domain.comdns01.park.onamae.comdns02.park.onamae.comdns1.prime-server.netdns2.prime-server.netmaster.dns.ne.jpns1.dns.ne.jpns1.gmointernet.comns2.dns.ne.jpMXko-zan.comA202.172.25.12210.157.1.134219.94.192.3952.25.92.054.65.172.3
○NSdns01.park.onamae.com2015-09-21 → 2016-04-29 · 5 obs
○ 2008-03-20 11:03:54
● 2015-09-21 01:49:38
● 2016-04-29 22:59:00
○ 2016-06-02 15:20:40
○ 2026-05-13 23:37:20
○NSdns02.park.onamae.com2015-09-21 → 2016-04-29 · 5 obs
○ 2008-03-20 11:03:54
● 2015-09-21 01:49:38
● 2016-04-29 22:59:00
○ 2016-06-02 15:20:40
○ 2026-05-13 23:37:20
○NSdns1.prime-server.net2008-03-20 → 2008-03-20 · 3 obs
● 2008-03-20 11:03:54
○ 2015-08-16 20:17:42
○ 2026-05-13 23:37:20
○NSdns2.prime-server.net2008-03-20 → 2008-03-20 · 3 obs
● 2008-03-20 11:03:54
○ 2015-08-16 20:17:42
○ 2026-05-13 23:37:20
○NSmaster.dns.ne.jp2016-12-15 → 2016-12-29 · 5 obs
○ 2016-06-02 15:20:40
● 2016-12-15 19:48:52
● 2016-12-29 12:55:38
○ 2026-05-11 18:32:56
○ 2026-05-13 23:37:20
○NSns1.dns.ne.jp2016-12-15 → 2016-12-29 · 5 obs
○ 2016-06-02 15:20:40
● 2016-12-15 19:48:52
● 2016-12-29 12:55:38
○ 2026-05-11 18:32:56
○ 2026-05-13 23:37:20
○NSns1.gmointernet.com2015-08-16 → 2016-04-29 · 5 obs
○ 2008-03-20 11:03:54
● 2015-08-16 20:17:42
● 2016-04-29 22:59:00
○ 2016-06-02 15:20:40
○ 2026-05-13 23:37:20
●NSns1.value-domain.com2026-05-11 → 2026-05-13 · 3 obs
○ 2016-12-29 12:55:38
● 2026-05-11 18:32:56
● 2026-05-13 23:37:20
○NSns2.dns.ne.jp2016-12-15 → 2016-12-29 · 5 obs
○ 2016-06-02 15:20:40
● 2016-12-15 19:48:52
● 2016-12-29 12:55:38
○ 2026-05-11 18:32:56
○ 2026-05-13 23:37:20
●NSns2.value-domain.com2026-05-11 → 2026-05-13 · 3 obs
○ 2016-12-29 12:55:38
● 2026-05-11 18:32:56
● 2026-05-13 23:37:20
●NSns3.value-domain.com2026-05-11 → 2026-05-13 · 3 obs
○ 2016-12-29 12:55:38
● 2026-05-11 18:32:56
● 2026-05-13 23:37:20
●NSns4.value-domain.com2026-05-11 → 2026-05-13 · 3 obs
○ 2016-12-29 12:55:38
● 2026-05-11 18:32:56
● 2026-05-13 23:37:20
●NSns5.value-domain.com2026-05-11 → 2026-05-13 · 3 obs
○ 2016-12-29 12:55:38
● 2026-05-11 18:32:56
● 2026-05-13 23:37:20
●MXko-zan.com2016-12-15 → 2026-05-13 · 2 obs
● 2016-12-15 19:48:52
● 2026-05-13 23:37:20
●A202.172.25.122026-05-11 → 2026-05-13 · 3 obs
○ 2018-07-22 04:38:12
● 2026-05-11 18:32:56
● 2026-05-13 23:37:20
○A210.157.1.1342015-08-16 → 2016-04-29 · 5 obs
○ 2008-03-20 11:03:54
● 2015-08-16 20:17:42
● 2016-04-29 22:59:00
○ 2016-06-02 15:20:40
○ 2026-05-13 23:37:20
○A219.94.192.392016-12-15 → 2016-12-29 · 5 obs
○ 2016-06-02 15:20:40
● 2016-12-15 19:48:52
● 2016-12-29 12:55:38
○ 2018-07-22 04:38:12
○ 2026-05-13 23:37:20
○A52.25.92.02018-07-22 → 2018-07-22 · 4 obs
○ 2016-12-29 12:55:38
● 2018-07-22 04:38:12
○ 2026-05-11 18:32:56
○ 2026-05-13 23:37:20
○A54.65.172.32018-07-22 → 2018-07-22 · 4 obs
○ 2016-12-29 12:55:38
● 2018-07-22 04:38:12
○ 2026-05-11 18:32:56
○ 2026-05-13 23:37:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...-
ko-zan.comns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com...5 records

✅ Authoritative Response

Server:172.64.53.3

NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns5.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ko-zan.com (unsigned zone)

⏱️ Timing

Total: 476ms | Queries: -

📄 Records

TypeCountSample Data
A1202.172.25.12
NS2ns1.value-domain.com, ns2.value-domain.com
MX1ko-zan.com (pri: 10)
TXT1v=spf1 ip4:202.172.25.12 include:mxr.val
SOA1ns1.value-domain.com hostmaster.ko-zan.c

📌 Glue Records Collected

Total: 5

Out-of-bailiwick: 5 (ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com...)

Analysis

Mail Server Role

ko-zan.com serves as the mail server for ko-zan.com.

IP Addresses

ko-zan.com points to an IP address: 202.172.25.12.

other host names include www.shinsaku.biz, mail.woodyhomes.com, lewgin.com, mail.shiobaruhoikuen.com and mail.wgl-hair.com; they share IP numbers with ko-zan.com.

Name Servers

ko-zan.com is delegated to five name servers: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com and ns5.value-domain.com.

ko-zan.com at least partially shares name servers with other domains, for instance y-copywriter.com, xn--djto8v.net, nomoto.org, katsuster.net and apomat.net.

These name servers are commonly used alongside ns11.value-domain.com, ns12.value-domain.com and ns13.value-domain.com.

Host names with two IP numbers

ns1.value-domain.com points to 172.64.52.38 and 172.64.52.161

ns2.value-domain.com points to 172.64.53.3 and 172.64.53.115

ns3.value-domain.com points to 172.64.52.38 and 172.64.52.161

ns4.value-domain.com points to 172.64.53.3 and 172.64.53.115

ns5.value-domain.com points to 172.64.52.38 and 172.64.52.161

Host names that point to 172.64.52.38: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com

Host names that point to 172.64.52.161: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com

Host names that point to 172.64.53.3: ns2.value-domain.com and ns4.value-domain.com

Host names that point to 172.64.53.115: ns2.value-domain.com and ns4.value-domain.com

Mail Servers

ko-zan.com is handled by a single mail server.

The host name ko-zan.com points to IP 202.172.25.12.