em-engineering.com - dns.ninja
em-engineering.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.253.81🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| NS | kotetsu.alpha-lt.net ⭐ | ||||||
| A | 157.205.252.6🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns01.alpha-mail.jp | ||||||
| NS | amdns03.alpha-mail.jp | ||||||
| A | 216.230.254.112🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| NS | tsukuba.aics.ne.jp | ||||||
| A | 157.205.252.7🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns02.alpha-mail.jp | ||||||
| MX | ampub01.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.1🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| MX | ampub02.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.2🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub02.alpha-mail.net | ||||||
| MX | ampub03.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.3🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| MX | ampub04.alpha-mail.net(50) | ||||||
| A | 216.230.254.4🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub04.alpha-mail.net | ||||||
| TXT | v=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2... | ||||||
| SOA | kotetsu.alpha-lt.netpostmaster@alpha-web.ne.jp 2023-07-26 #0 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786902819 | ||||||
Subdomains
pop.em-engineering.com |
Same first word
em-engineering.com |
em-engineering.ru |
em-engineering.it |
em-engineering.gr |
Similar names
DNS History
9 records (8 active, 1 former)
●NSamdns03.alpha-mail.jp2026-02-25 → 2026-08-16 · 3 obs
● 2026-02-25 10:19:50
● 2026-08-16 18:23:50
●NSkotetsu.alpha-lt.net2015-08-18 → 2026-08-16 · 2 obs
● 2026-08-16 18:23:50
●NStsukuba.aics.ne.jp2015-08-18 → 2026-08-16 · 2 obs
● 2026-08-16 18:23:50
●MXampub01.alpha-mail.net2015-08-18 → 2026-08-16 · 2 obs
● 2026-08-16 18:23:50
●MXampub02.alpha-mail.net2015-08-18 → 2026-08-16 · 2 obs
● 2026-08-16 18:23:50
●MXampub03.alpha-mail.net2015-08-18 → 2026-08-16 · 2 obs
● 2026-08-16 18:23:50
●MXampub04.alpha-mail.net2020-02-28 → 2026-08-16 · 3 obs
● 2020-02-28 02:06:14
● 2026-08-16 18:23:50
○A216.230.250.1622015-08-18 → 2020-02-28 · 4 obs
● 2020-02-28 02:06:14
○ 2026-02-25 10:19:50
○ 2026-08-16 18:23:50
●A216.230.253.812026-02-25 → 2026-08-16 · 3 obs
● 2026-02-25 10:19:50
● 2026-08-16 18:23:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| em-engineering.com | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp | - |
✅ Authoritative Response
Server:216.230.254.112
NS records: kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for em-engineering.com (unsigned zone)
⏱️ Timing
Total: 887ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.230.253.81 |
| NS | 3 | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp... |
| MX | 4 | ampub03.alpha-mail.net (pri: 10), ampub01.alpha-mail.net (pri: 10)... |
| TXT | 1 | v=spf1 ip4:157.205.202.0/24 ip4:157.205. |
| SOA | 1 | kotetsu.alpha-lt.net postmaster.alpha-we |
Analysis
Hierarchy
em-engineering.com serves as the parent of pop.em-engineering.com.
IP Addresses
em-engineering.com resolves to just one IP address, 216.230.253.81.
Two other host names, along with centerboard.jp, en-trust.co.jp and erooms.co.jp, also share IP numbers with em-engineering.com.
Name Servers
Three name servers are authoritative for em-engineering.com: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
em-engineering.com has at least partial name server overlap with other domains, such as pearl-opt.com, glare-c.com, jes-g.com and two others.
Three hostnames, one IP address apiece: amdns03.alpha-mail.jp resolves to 216.230.254.112, kotetsu.alpha-lt.net resolves to 157.205.252.6 and tsukuba.aics.ne.jp resolves to 157.205.252.7.
Mail Servers
Four mail servers handle email for em-engineering.com: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
There is at least a partial MX overlap between em-engineering.com and other domains, including act-x.co.jp, miyata-ss.jp, taiyo-technica.co.jp and two others.
The hosts ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net all resolve to exactly one IP address each: 216.230.254.1, 216.230.254.2, 216.230.254.3 and 216.230.254.4 respectively.