programminglabo.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

programminglabo.com

DNSSEC⚠️ Not signed
A202.254.234.121🇯🇵 XSERVER-AS202.254.232.0/22 XSERVER Inc.
PTRsv3120.xserver.jp
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXprogramminglabo.com ⭐
A202.254.234.121🇯🇵 XSERVER-AS202.254.232.0/22 XSERVER Inc.
PTRsv3120.xserver.jp
TXTv=spf1 +a:sv3120.xserver.jp +a:programminglabo.com +mx include:spf.sender.xse...
SOAns1.xserver.jproot@xserver.jp serial=0

com

MX for

Same first word

Previous names

Next names

DNS History

8 records (7 active, 1 former)

20192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXprogramminglabo.comA202.254.234.121183.90.250.5
●NSns1.xserver.jp2018-06-11 → 2026-09-25 · 2 obs
● 2018-06-11 04:35:24
● 2026-09-25 09:53:48
●NSns2.xserver.jp2018-06-11 → 2026-09-25 · 2 obs
● 2018-06-11 04:35:24
● 2026-09-25 09:53:48
●NSns3.xserver.jp2018-06-11 → 2026-09-25 · 2 obs
● 2018-06-11 04:35:24
● 2026-09-25 09:53:48
●NSns4.xserver.jp2018-06-11 → 2026-09-25 · 2 obs
● 2018-06-11 04:35:24
● 2026-09-25 09:53:48
●NSns5.xserver.jp2018-06-11 → 2026-09-25 · 2 obs
● 2018-06-11 04:35:24
● 2026-09-25 09:53:48
●MXprogramminglabo.com2018-06-11 → 2026-09-25 · 2 obs
● 2018-06-11 04:35:24
● 2026-09-25 09:53:48
○A183.90.250.52018-06-11 → 2018-06-11 · 3 obs
● 2018-06-11 04:35:24
○ 2026-09-19 16:27:02
○ 2026-09-25 09:53:48
●A202.254.234.1212026-09-19 → 2026-09-25 · 3 obs
○ 2018-06-11 04:35:24
● 2026-09-19 16:27:02
● 2026-09-25 09:53:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
programminglabo.comns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...-

✅ Authoritative Response

Server:202.226.37.247

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programminglabo.com (unsigned zone)

⏱️ Timing

Total: 1118ms | Queries: -

📄 Records

TypeCountSample Data
A1202.254.234.121
NS5ns2.xserver.jp, ns1.xserver.jp...
MX1programminglabo.com (pri: 0)
TXT1v=spf1 +a:sv3120.xserver.jp +a:programmi
SOA1ns1.xserver.jp root.xserver.jp

Analysis

Mail Server Role

programminglabo.com serves as a mail server for programminglabo.com.

IP Addresses

programminglabo.com has exactly one IP address — 202.254.234.121.

mwc.yokohama, nikkei-connect.jp, sakai-seikei.com plus two other host names have IP numbers in common with programminglabo.com.

Name Servers

Five name servers handle delegation for programminglabo.com: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

At least some of programminglabo.com's name servers are shared with other domains, for example aclaboratory.co.jp, imfcanada.com, ne.kg and two more.

These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.

Host names carrying three IP numbers:

ns1.xserver.jp resolves to three addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp resolves to three addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp resolves to three addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names resolving to a single IP address:

ns2.xserver.jp points to the IP address 35.72.43.26.

ns3.xserver.jp points to the IP address 202.226.36.247.

Mail Servers

programminglabo.com uses exactly one mail server, which is programminglabo.com.

There is one IP number for programminglabo.com: 202.254.234.121.