sys-01.com - robtex.com

sys-01.com

DNSSEC⚠️ Not signed
A202.172.26.37🇯🇵 DRNET202.172.24.0/21
PTRm36.coreserver.jp
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
MXsys-01.com ⭐
A202.172.26.37🇯🇵 DRNET202.172.24.0/21
PTRm36.coreserver.jp
TXTv=spf1 ip4:202.172.26.37 include:mxr.valueserver.jp ~all
SOAns1.value-domain.comhostmaster@sys-01.com 2025-07-09 #13

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=1774626027

Subdomains

mail.sys-01.com

DNS History

12 records (7 active, 5 former)

20162017201820192020202120222023202420252026NSns1.value-domain.comns11.value-domain.comns12.value-domain.comns13.value-domain.comns2.value-domain.comnszero1.axc.nlnszero2.axc.nlMXsys-01.comfallback.axc.nlmail.sys-01.comA202.172.26.37159.253.0.110
●NSns1.value-domain.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08
●NSns11.value-domain.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08
●NSns12.value-domain.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08
●NSns13.value-domain.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08
●NSns2.value-domain.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08
○NSnszero1.axc.nl2015-05-21 → 2017-02-01 · 3 obs
● 2015-05-21 07:24:34
● 2017-02-01 06:43:54
○ 2026-03-27 15:47:08
○NSnszero2.axc.nl2015-05-21 → 2017-02-01 · 3 obs
● 2015-05-21 07:24:34
● 2017-02-01 06:43:54
○ 2026-03-27 15:47:08
○MXfallback.axc.nl2015-05-21 → 2017-02-01 · 3 obs
● 2015-05-21 07:24:34
● 2017-02-01 06:43:54
○ 2026-03-27 15:47:08
○MXmail.sys-01.com2015-05-21 → 2017-02-01 · 3 obs
● 2015-05-21 07:24:34
● 2017-02-01 06:43:54
○ 2026-03-27 15:47:08
●MXsys-01.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08
○A159.253.0.1102015-05-21 → 2017-02-01 · 3 obs
● 2015-05-21 07:24:34
● 2017-02-01 06:43:54
○ 2026-03-27 15:47:08
●A202.172.26.372026-03-27 → 2026-03-27 · 2 obs
○ 2017-02-01 06:43:54
● 2026-03-27 15:47:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sys-01.comns11.value-domain.com, ns12.value-domain.com, ns13.value-domain.com3 records

✅ Authoritative Response

Server:172.64.52.184

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys-01.com (unsigned zone)

⏱️ Timing

Total: 489ms | Queries: -

📄 Records

TypeCountSample Data
A1202.172.26.37
NS2ns2.value-domain.com, ns1.value-domain.com
MX1sys-01.com (pri: 10)
TXT1v=spf1 ip4:202.172.26.37 include:mxr.val
SOA1ns1.value-domain.com hostmaster.sys-01.c

📌 Glue Records Collected

Total: 3

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

Analysis

Hierarchy

The parent of mail.sys-01.com is sys-01.com.

IP Addresses

sys-01.com points to a single IP: 202.172.26.37.

Other host names, for instance yokoshu.com, stone-h.com, mail.turtlesystem.com, mail.sky4.net and hostmaster.tridentworks.net share IP numbers with sys-01.com.

Name Servers

sys-01.com is delegated 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.

sys-01.com partially shares name servers with other domains; examples include jalc.or.jp, personalboxingbox.com, dns-ovss.info, ok-ins.com and oz-consulting-easy.com.

These name servers are commonly used 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.

Mail Servers

sys-01.com is handled by a single mail server, sys-01.com.

sys-01.com points to a single IP: 202.172.26.37.