mail.tsuma.net - robtex.com

mail.tsuma.net

CNAMEtsuma.net
DNSSEC⚠️ Not signed
A202.172.26.30🇯🇵 DRNET202.172.24.0/21
PTRm29.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
MXmail1.tsuma.net ⭐
A202.172.26.30🇯🇵 DRNET202.172.24.0/21
PTRm29.coreserver.jp
MXmail2.tsuma.net(20)
A183.90.181.102🇯🇵 DRNET183.90.176.0/21
PTRtky002.rakko.zone
MXmail3.tsuma.net(30)
A183.90.181.103🇯🇵 DRNET183.90.176.0/21
PTRtky003.rakko.zone
MXmail4.tsuma.net(40)
A183.90.180.104🇯🇵 DRNET183.90.176.0/21
PTRtky004.rakko.zone
TXTv=spf1 mx ~all
SOAns1.value-domain.comhostmaster@tsuma.net 2026-01-24 #19

tsuma.net

DNSSEC⚠️ Not signed
A202.172.26.30🇯🇵 DRNET202.172.24.0/21
NSns1.value-domain.com ⭐
NSns2.value-domain.com
NSns3.value-domain.com ⚠️ Not in zone NS records
NSns4.value-domain.com ⚠️ Not in zone NS records
NSns5.value-domain.com ⚠️ Not in zone NS records
MXmail1.tsuma.net ⭐
MXmail2.tsuma.net(20)
MXmail3.tsuma.net(30)
MXmail4.tsuma.net(40)
TXTv=spf1 mx ~all
SOAns1.value-domain.comhostmaster@tsuma.net 2026-01-24 #19

Previously MX for

tsuma.net

Same first word

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mail.com.ba
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DNS History

3 records (1 active, 2 former)

2017201820192020202120222023202420252026A210.140.190.140CNAMEtsuma.netsv.tsuma.net
○A210.140.190.1402016-10-30 → 2016-10-30 · 3 obs
● 2016-10-30 11:44:04
○ 2026-04-13 13:01:12
○ 2026-04-13 13:01:14
○CNAMEsv.tsuma.net2016-10-30 → 2016-10-30 · 3 obs
● 2016-10-30 11:44:04
○ 2026-04-13 13:01:12
○ 2026-04-13 13:01:14
●CNAMEtsuma.net2026-04-13 → 2026-04-13 · 3 obs
○ 2016-10-30 11:44:04
● 2026-04-13 13:01:12
● 2026-04-13 13:01:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netm.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...-
tsuma.netns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com...-

✅ Authoritative Response

Server:172.64.52.161

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 tsuma.net (unsigned zone)

⏱️ Timing

Total: 541ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1tsuma.net

Analysis

IP Addresses

mail.tsuma.net resolves to a single IP: 202.172.26.30.

Other host names, for instance mail.sigcs.org, haneda.biz, hostmaster.muneatsu.com, hostmaster.smapweb.com and murajimu.biz share IP numbers with mail.tsuma.net.

Name Servers

mail.tsuma.net delegates 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.

mail.tsuma.net shares some name servers with other domains, for example scap-sns.com, i-health.jp, horiken-tec.jp, 3156.jp and kitami.net.

These name servers are often used together with ns11.value-domain.com, ns12.value-domain.com and ns13.value-domain.com.

Host names with two IP numbers:

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

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

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

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

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

Hosts pointing to 172.64.52.38: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com.

Hosts pointing to 172.64.52.161: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com.

Hosts pointing to 172.64.53.3: ns2.value-domain.com and ns4.value-domain.com.

Hosts pointing to 172.64.53.115: ns2.value-domain.com and ns4.value-domain.com.

Mail Servers

mail.tsuma.net is handled by four mail servers: mail1.tsuma.net, mail2.tsuma.net, mail3.tsuma.net and mail4.tsuma.net.

mail.tsuma.net shares at least some mail servers with other domains, for example tsuma.net.

Host names with a single IP

mail1.tsuma.net resolves to 202.172.26.30

mail2.tsuma.net resolves to 183.90.181.102

mail3.tsuma.net resolves to 183.90.181.103

mail4.tsuma.net resolves to 183.90.180.104