upstream-lab.com - robtex.com

upstream-lab.com

DNSSEC⚠️ Not signed
A162.43.94.19🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.
PTRsv15018.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
MXupstream-lab.com ⭐
A162.43.94.19🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.
PTRsv15018.xserver.jp
TXTv=spf1 +a:sv15018.xserver.jp +a:upstream-lab.com +mx include:spf.sender.xserv...
SOAns1.xserver.jproot@xserver.jp serial=0

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=1776102762

MX for

upstream-lab.com

Subdomains

mx.upstream-lab.com

Same first word

upstream-lab.com

DNS History

7 records (7 active, 0 former)

NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXupstream-lab.comA162.43.94.19
●NSns1.xserver.jp2026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26
●NSns2.xserver.jp2026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26
●NSns3.xserver.jp2026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26
●NSns4.xserver.jp2026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26
●NSns5.xserver.jp2026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26
●MXupstream-lab.com2026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26
●A162.43.94.192026-03-08 → 2026-04-13 · 2 obs
● 2026-03-08 13:43:12
● 2026-04-13 18:05:26

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:202.226.39.247

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 upstream-lab.com (unsigned zone)

⏱️ Timing

Total: 967ms | Queries: -

📄 Records

TypeCountSample Data
A1162.43.94.19
NS5ns4.xserver.jp, ns2.xserver.jp...
MX1upstream-lab.com (pri: 0)
TXT1v=spf1 +a:sv15018.xserver.jp +a:upstream
SOA1ns1.xserver.jp root.xserver.jp

Analysis

Hierarchy

The parent of mx.upstream-lab.com is upstream-lab.com.

Mail Server Role

upstream-lab.com serves as a mail server for upstream-lab.com.

IP Addresses

upstream-lab.com points to a single IP: 162.43.94.19.

Other host names, for instance mail.tanbaya.net, sta.macaso.jp, japacks.com, mx.upstream-lab.com and brain-network.co.jp share IP numbers with upstream-lab.com.

Name Servers

upstream-lab.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

upstream-lab.com partially shares name servers with other domains; examples include kk-houwa.co.jp, for-i.com, gri-system.info, servicenavigator.net and stature-dsn.com.

Host names with three IP numbers:

ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246

ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247

ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247

Host names with one IP number:

ns2.xserver.jp points to: 35.72.43.26

ns3.xserver.jp points to: 202.226.36.247

Mail Servers

upstream-lab.com is handled by a single mail server, upstream-lab.com.

upstream-lab.com points to a single IP: 162.43.94.19.