sei-un.com - dns.ninja
sei-un.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.107.183🇯🇵 GMO-INTERNET157.7.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | 157-7-107-183.virt.lolipop.jp | ||||||
| NS | sei-un.com ⭐ | ||||||
| A | 157.7.107.183🇯🇵 GMO-INTERNET157.7.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | 157-7-107-183.virt.lolipop.jp | ||||||
| NS | dns01.muumuu-domain.com | ||||||
| A | 202.239.23.39🇯🇵 IDC202.239.23.0/24 Frontier Inc. | ||||||
| NS | dns02.muumuu-domain.com | ||||||
| A | 160.251.249.62🇯🇵 GMOOSK-NET160.251.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| MX | mx01.lolipop.jp ⭐ | ||||||
| A | 157.7.107.233🇯🇵 GMO-INTERNET157.7.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| TXT | google-site-verification=kcFLFVfiQLmFN23eW-5q-8Hp0C_WGGjSpAUuLGusXtM | ||||||
| SOA | sei-un.compostmaster@sei-un.com serial=1642091208 | ||||||
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=1784385667 | ||||||
NS for
sei-un.com |
Same first word
sei-un.com |
Similar names
sun-ei.co.jp |
e-suin.com |
nis-eu.com |
sun-ei.biz |
en-sui.com |
uni-se.com |
usen-i.biz |
i-senu.com |
in-use.com |
neu-si.com |
e-usin.com |
sui-en.com |
DNS History
7 records (5 active, 2 former)
●NSdns01.muumuu-domain.com2015-05-17 → 2026-07-18 · 2 obs
● 2026-07-18 14:49:30
●NSdns02.muumuu-domain.com2015-05-17 → 2026-07-18 · 2 obs
● 2026-07-18 14:49:30
●NSsei-un.com2015-05-17 → 2026-07-18 · 2 obs
● 2026-07-18 14:49:30
●MXmx01.lolipop.jp2015-05-17 → 2026-07-18 · 2 obs
● 2026-07-18 14:49:30
●A157.7.107.1832026-03-07 → 2026-07-18 · 3 obs
● 2026-03-07 19:50:54
● 2026-07-18 14:49:30
○A157.7.107.332016-07-15 → 2017-03-13 · 5 obs
● 2016-07-15 17:11:06
● 2017-03-13 23:38:58
○ 2026-03-07 19:50:54
○ 2026-07-18 14:49:30
○A210.172.144.2482015-05-17 → 2016-03-20 · 4 obs
● 2016-03-20 06:52:06
○ 2016-07-15 17:11:06
○ 2026-07-18 14:49:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| sei-un.com | dns01.muumuu-domain.com, dns02.muumuu-domain.com | 2 records |
✅ Authoritative Response
Server:202.239.23.39
NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sei-un.com (unsigned zone)
⏱️ Timing
Total: 438ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.107.183 |
| NS | 2 | dns01.muumuu-domain.com, dns02.muumuu-domain.com |
| MX | 1 | mx01.lolipop.jp (pri: 50) |
| TXT | 1 | google-site-verification=kcFLFVfiQLmFN23 |
| SOA | 1 | sei-un.com postmaster.sei-un.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns01.muumuu-domain.com, dns02.muumuu-domain.com)
Analysis
Name Server Role
sei-un.com has sei-un.com as one of its name servers, making it self-hosted for DNS delegation.
dns01.muumuu-domain.com and dns02.muumuu-domain.com frequently appear as name servers alongside sei-un.com.
IP Addresses
sei-un.com directs to one IP number, which is 157.7.107.183.
Among the host names that share IP numbers with sei-un.com are its-travel.co.jp, natural-soma.net, moriden.jp and two others.
Name Servers
Authority for sei-un.com is delegated across three name servers: sei-un.com, dns01.muumuu-domain.com and dns02.muumuu-domain.com.
sei-un.com shares at least some of its name servers with other domains, including yht8.co.jp, ebw-tirol.info, f-a-c.co.jp and two others.
sei-un.com points to 157.7.107.183; dns01.muumuu-domain.com points to 202.239.23.39; dns02.muumuu-domain.com points to 160.251.249.62 — each hostname maps to exactly one IP address.
Mail Servers
sei-un.com routes its mail through a single mail server, mx01.lolipop.jp.
sei-un.com has the same mail server arrangement as a number of other domains, for example car-oss.com, showakan.but.jp, chelip.net and two more.
mx01.lolipop.jp carries a single IP number, which is 157.7.107.233.