sei2.com - dns.ninja

sei2.com

DNSSEC⚠️ Not signed
A49.212.235.141🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3401.sakura.ne.jp
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRns2.dns.ne.jp
MXsei2.com ⭐
A49.212.235.141🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3401.sakura.ne.jp
SOAmaster.dns.ne.jptech@sakura.ad.jp 2013-09-16 #3

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=1783212561

MX for

sei2.com

Same first word

sei2.com
sei2.jp

Similar names

esi2.com
2sei.com
is2e.pro
i2es.com.uy
ei2s.fr
i2es.us
ies2.com.br
eis2.com
2esi.com
i2se.com
2ise.net
ie2s.com
is2e.com
2ies.com
s2ei.fr
es2i.com
2ise.it
i2es.biz
i2se.net
e2is.in
si2e.com
esi2.net
es2i.net
si2e.fr
s2ei.com
2ise.com
e2is.com
ei2s.com
es2i.fr
i2se.de
2eis.com
e2si.fr
ies2.com
2sie.com
i2es.com
si2e.net

DNS History

5 records (5 active, 0 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXsei2.comA49.212.235.141
●NSmaster.dns.ne.jp2015-05-31 → 2026-07-05 · 2 obs
● 2015-05-31 19:20:04
● 2026-07-05 01:19:32
●NSns1.dns.ne.jp2015-05-31 → 2026-07-05 · 2 obs
● 2015-05-31 19:20:04
● 2026-07-05 01:19:32
●NSns2.dns.ne.jp2015-05-31 → 2026-07-05 · 2 obs
● 2015-05-31 19:20:04
● 2026-07-05 01:19:32
●MXsei2.com2015-05-31 → 2026-07-05 · 2 obs
● 2015-05-31 19:20:04
● 2026-07-05 01:19:32
●A49.212.235.1412015-05-31 → 2026-07-05 · 2 obs
● 2015-05-31 19:20:04
● 2026-07-05 01:19:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sei2.comns1.dns.ne.jp, ns2.dns.ne.jp-

✅ Authoritative Response

Server:61.211.236.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sei2.com (unsigned zone)

⏱️ Timing

Total: 884ms | Queries: -

📄 Records

TypeCountSample Data
A149.212.235.141
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1sei2.com (pri: 10)
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Mail Server Role

sei2.com serves as a mail server for sei2.com.

IP Addresses

sei2.com has exactly one IP address — 49.212.235.141.

digital-city.co.jp, tm-nets.net, laifai.biz plus two other host names have IP numbers in common with sei2.com.

Name Servers

The authoritative name servers for sei2.com are master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp — three in total.

At least some of sei2.com's name servers are shared with other domains, for example phoenixhotel.co.jp, nana-co.sakura.ne.jp, ab-u.co.jp and two more.

These name servers tend to be used in conjunction with the name servers dns.sakura.ad.jp.

The hostnames master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP: master.dns.ne.jp → 210.224.172.18, ns1.dns.ne.jp → 61.211.236.1, ns2.dns.ne.jp → 133.167.21.1.

Mail Servers

sei2.com uses exactly one mail server, which is sei2.com.

sei2.com directs to just one IP number, 49.212.235.141.