izumikobo.com - robtex.com

izumikobo.com

DNSSEC⚠️ Not signed
A153.122.30.88🇯🇵 AS131921153.122.16.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
PTRsub0000527707.hmk-temp.com
NSns11.value-domain.com ⭐ ⚠️ Not in parent delegation
A172.64.52.98🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.184🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1.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
NSns12.value-domain.com ⚠️ Not in zone NS records
A172.64.53.86🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.53.188🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns13.value-domain.com ⚠️ Not in zone NS records
A172.64.52.98🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.184🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.value-domain.com ⚠️ Not in parent delegation
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
MXmail.izumikobo.com ⭐
A153.122.30.88🇯🇵 AS131921153.122.16.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.
PTRsub0000527707.hmk-temp.com
TXTv=spf1 a:mail.izumikobo.com ~all
SOAns1.value-domain.comhostmaster@izumikobo.com 2025-04-13 #21

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=1778776951

Subdomains

mail.izumikobo.com

Same first word

izumikobo.com

DNS History

7 records (7 active, 0 former)

2017201820192020202120222023202420252026NSns1.value-domain.comns11.value-domain.comns12.value-domain.comns13.value-domain.comns2.value-domain.comMXmail.izumikobo.comA153.122.30.88
●NSns1.value-domain.com2026-03-29 → 2026-05-14 · 3 obs
○ 2016-12-18 18:57:56
● 2026-03-29 10:04:08
● 2026-05-14 17:05:38
●NSns11.value-domain.com2016-12-18 → 2026-05-14 · 2 obs
● 2016-12-18 18:57:56
● 2026-05-14 17:05:38
●NSns12.value-domain.com2016-12-18 → 2026-05-14 · 2 obs
● 2016-12-18 18:57:56
● 2026-05-14 17:05:38
●NSns13.value-domain.com2016-12-18 → 2026-05-14 · 2 obs
● 2016-12-18 18:57:56
● 2026-05-14 17:05:38
●NSns2.value-domain.com2026-03-29 → 2026-05-14 · 3 obs
○ 2016-12-18 18:57:56
● 2026-03-29 10:04:08
● 2026-05-14 17:05:38
●MXmail.izumikobo.com2016-12-18 → 2026-05-14 · 2 obs
● 2016-12-18 18:57:56
● 2026-05-14 17:05:38
●A153.122.30.882016-12-18 → 2026-05-14 · 2 obs
● 2016-12-18 18:57:56
● 2026-05-14 17:05:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
izumikobo.comns11.value-domain.com, ns12.value-domain.com, ns13.value-domain.com3 records

✅ Authoritative Response

Server:172.64.53.86

NS records: ns11.value-domain.com, ns12.value-domain.com, ns13.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for izumikobo.com (unsigned zone)

⏱️ Timing

Total: 429ms | Queries: -

📄 Records

TypeCountSample Data
A1153.122.30.88
NS2ns2.value-domain.com, ns1.value-domain.com
MX1mail.izumikobo.com (pri: 10)
TXT1v=spf1 a:mail.izumikobo.com ~all
SOA1ns1.value-domain.com hostmaster.izumikob

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns11.value-domain.com, ns12.value-domain.com, ns13.value-domain.com)

Analysis

Hierarchy

izumikobo.com is the parent of mail.izumikobo.com.

IP Addresses

izumikobo.com resolves to a single IP: 153.122.30.88.

Other host names, for instance, ryukyuhonpo.com, sub0000527707.hmk-temp.com, mail.okinawa7.com and mail.izumikobo.com share IP numbers with izumikobo.com.

Name Servers

izumikobo.com delegates to five name servers: ns11.value-domain.com, ns12.value-domain.com, ns13.value-domain.com, ns1.value-domain.com and ns2.value-domain.com.

izumikobo.com shares some name servers with other domains, for example xn--cckjx6a8cr.jp, petlounge-amalfi.com, weboosumi.com, ankorostudio.net and kcity-server.com.

These name servers are often used together with ns3.value-domain.com, ns4.value-domain.com and ns5.value-domain.com.

Host names with two IP numbers:

ns11.value-domain.com points to 172.64.52.98 and 172.64.52.184.

ns12.value-domain.com points to 172.64.53.86 and 172.64.53.188.

ns13.value-domain.com points to 172.64.52.98 and 172.64.52.184.

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.

Host names that point to 172.64.52.98: ns11.value-domain.com and ns13.value-domain.com.

Host names that point to 172.64.52.184: ns11.value-domain.com and ns13.value-domain.com.

Note: ns11.value-domain.com and ns13.value-domain.com share the same two IPs: 172.64.52.98 and 172.64.52.184.

Mail Servers

izumikobo.com is handled by a single mail server, mail.izumikobo.com.

Host name mail.izumikobo.com points to IP 153.122.30.88.