birtec.co.jp - robtex.com

birtec.co.jp

DNSSEC⚠️ Not signed
A183.90.237.58🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv7217.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
MXbirtec.co.jp ⭐
A183.90.237.58🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv7217.xserver.jp
MXaspmx.l.google.com(1)
A2607:f8b0:4004:c19::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f26.1e100.net
A192.178.155.26🇺🇸 Google192.178.155.0/24
PTRyuiadrs-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4003:c4a::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulth-in-f27.1e100.net
A142.251.96.27🇺🇸 Google142.250.0.0/15
PTRyutulth-in-f27.1e100.net
TXTgoogle-site-verification=NDASH8LwIphYU_MxRdKoGxVlXrf9xB_caBnvOWlqHGU
TXTv=spf1 +a:sv7217.xserver.jp +a:birtec.co.jp +mx ~all
TXT v=spf1 +a:sv7217.xserver.jp +a:birtec.co.jp +mx ~all
SOAns1.xserver.jproot@xserver.jp serial=0

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (58/100)

MX for

birtec.co.jp

Same first word

birtec.co.jp

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DNS History

12 records (12 active, 0 former)

NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.combirtec.co.jpA183.90.237.58
●NSns1.xserver.jp2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●NSns2.xserver.jp2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●NSns3.xserver.jp2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●NSns4.xserver.jp2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●NSns5.xserver.jp2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●MXalt1.aspmx.l.google.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●MXalt2.aspmx.l.google.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●MXalt3.aspmx.l.google.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●MXalt4.aspmx.l.google.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●MXaspmx.l.google.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●MXbirtec.co.jp2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58
●A183.90.237.582026-05-06 → 2026-05-11 · 2 obs
● 2026-05-06 12:49:54
● 2026-05-11 21:07:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
birtec.co.jpns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...11 records

✅ Authoritative Response

Server:183.90.224.226

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 birtec.co.jp (unsigned zone)

⏱️ Timing

Total: 2231ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.237.58
NS5ns2.xserver.jp, ns3.xserver.jp...
MX6alt1.aspmx.l.google.com (pri: 5), birtec.co.jp (pri: 0)...
TXT3google-site-verification=NDASH8LwIphYU_M, v=spf1 +a:sv7217.xserver.jp +a:birtec...
SOA1ns1.xserver.jp root.xserver.jp

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Mail Server Role

birtec.co.jp serves as the mail server for birtec.co.jp.

aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are commonly used as mail servers together with birtec.co.jp.

IP Addresses

birtec.co.jp points to a single IP number: 183.90.237.58.

Other host names, for instance pop.musiva.net, nke.biz, libertus.co.jp, www.tokyodtm.com and tokyodtm.com share IP numbers with birtec.co.jp.

Name Servers

birtec.co.jp is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

birtec.co.jp shares name servers with other domains at least partially, for instance yaricata.com, uranai.org, alltheatreco.com, kensetu-kyoka.com and hakubutsukan.net.

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

Six mail servers handle birtec.co.jp: birtec.co.jp, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

birtec.co.jp shares some mail servers with other domains, including ns500754.ns500671.ns500731.ns500671.ns500742.ns500731.ns500704.ns500705.ns500705.ns500704.ns500671.ns500678.ns500688.ns500671.ns500649.lustychickser.com, ns500693.ns500734.ns500734.ns500699.ns500734.ns500734.ns500693.ns500699.ns500588.dtrkdll.com, ns500671.ns500754.ns500671.ns500754.ns500742.ns500704.ns500688.ns500704.ns500705.ns500671.ns500291.ns500649.ns500142.lusty(0x736c7574)z.com, ns500698.ns500759.ns500758.ns500735.ns500736.ns500735.ns500735.ns500736.ns500735.ns500708.ns500708.ns500576.ns500686.ns500619.trackreceptor.com and ns500759.ns500698.ns500758.ns500759.ns500698.ns500736.ns500736.ns500698.ns500735.ns500576.ns500708.ns500708.ns500619.ns500576.trackreceptor.com.

these mail servers are commonly used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to: 2607:f8b0:4004:c19::1a and 192.178.155.26; alt1.aspmx.l.google.com points to: 2800:3f0:4003:c0f::1b and 108.177.123.27; alt2.aspmx.l.google.com points to: 2a00:1450:400b:c02::1a and 172.253.116.26; alt3.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.26; alt4.aspmx.l.google.com points to: 2607:f8b0:4003:c4a::1b and 142.251.96.27.

Host names with one IP number:

birtec.co.jp points to: 183.90.237.58.