duo-app.com - robtex.com
duo-app.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 113.36.242.230🇯🇵 UCOM113.32.0.0/13 ARTERIA Networks Corporation(UCOM) | ||||||
| NS | ns1.lsv.jp ⭐ | ||||||
| A | 133.18.31.183🇯🇵 KAGOYAJAPAN133.18.0.0/16 KAGOYA Japan Inc. | ||||||
| PTR | ns1.lsv.jp | ||||||
| NS | ns2.lsv.jp | ||||||
| A | 133.18.208.120🇯🇵 KAGOYAJAPAN133.18.0.0/16 KAGOYA Japan Inc. | ||||||
| PTR | ns2.lsv.jp | ||||||
| MX | pop.lsv.jp ⭐ | ||||||
| A | 113.36.242.236🇯🇵 UCOM113.32.0.0/13 ARTERIA Networks Corporation(UCOM) | ||||||
| TXT | v=spf1 +ip4:133.18.31.183 +ip4:113.36.242.224/28 ~all | ||||||
| SOA | ns1.lsv.jproot@duo-app@com 2018-02-28 #1 | ||||||
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=1776144917 | ||||||
Previously MX for
duo-app.com |
Same first word
duo-app.com |
DNS History
15 records (4 active, 11 former)
●NSns1.lsv.jp2026-04-14 → 2026-04-14 · 3 obs
● 2026-04-14 05:39:36
● 2026-04-14 05:39:38
○NSns1.speedydns.net2017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 18:09:34
○ 2026-04-08 21:06:10
○ 2026-04-14 05:39:38
●NSns2.lsv.jp2026-04-08 → 2026-04-14 · 3 obs
● 2026-04-08 21:06:10
● 2026-04-14 05:39:38
○NSns2.speedydns.net2017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 18:09:34
○ 2026-04-08 21:06:10
○ 2026-04-14 05:39:38
○NSns3.speedydns.net2017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 18:09:34
○ 2026-04-08 21:06:10
○ 2026-04-14 05:39:38
○NSns45.domaincontrol.com2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-19 19:38:06
○ 2026-04-14 05:39:38
○NSns46.domaincontrol.com2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-19 19:38:06
○ 2026-04-14 05:39:38
○MXduo-app.com2017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 18:09:34
○ 2026-04-08 21:06:10
○ 2026-04-14 05:39:38
○MXmailstore1.secureserver.net2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-19 19:38:06
○ 2026-04-14 05:39:38
●MXpop.lsv.jp2026-04-14 → 2026-04-14 · 3 obs
● 2026-04-14 05:39:36
● 2026-04-14 05:39:38
○MXsmtp.secureserver.net2015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-19 19:38:06
○ 2026-04-14 05:39:38
●A113.36.242.2302026-04-14 → 2026-04-14 · 3 obs
● 2026-04-14 05:39:36
● 2026-04-14 05:39:38
○A143.95.39.1452017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 18:09:34
○ 2019-01-15 03:48:24
○ 2026-04-14 05:39:38
○A50.116.94.2542019-01-15 → 2019-01-15 · 4 obs
● 2019-01-15 03:48:24
○ 2026-04-08 21:06:10
○ 2026-04-14 05:39:38
○A50.63.202.462015-07-14 → 2015-07-14 · 3 obs
○ 2015-11-19 19:38:06
○ 2026-04-14 05:39:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net... | - |
| duo-app.com | ns1.lsv.jp, ns2.lsv.jp | - |
✅ Authoritative Response
Server:133.18.31.183
NS records: ns1.lsv.jp, ns2.lsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duo-app.com (unsigned zone)
⏱️ Timing
Total: 898ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 113.36.242.230 |
| NS | 2 | ns1.lsv.jp, ns2.lsv.jp |
| MX | 1 | pop.lsv.jp (pri: 10) |
| TXT | 1 | v=spf1 +ip4:133.18.31.183 +ip4:113.36.24 |
| SOA | 1 | ns1.lsv.jp root@duo-app.com |
Analysis
IP Addresses
duo-app.com resolves to a single IP: 113.36.242.230.
Other host names, for instance jaisana.com, josep-nara.com, s-aid.com, kamodani.com and nambu-chuhei-memorial.com share IP numbers with duo-app.com.
Name Servers
duo-app.com has two name servers: ns1.lsv.jp and ns2.lsv.jp.
duo-app.com shares the same name server setup as other domains, for example juraku.info, p-use.net, matuoka-clinic.com, arrow-p.com and gaooo.net.
duo-app.com partially shares name servers with other domains, for instance taltal3014.lsv.jp.
Host names with a single IP:
ns1.lsv.jp points to 133.18.31.183
ns2.lsv.jp points to 133.18.208.120
Mail Servers
duo-app.com is handled by a single mail server, pop.lsv.jp.
duo-app.com shares the mail server setup with other domains, for example fukuda-family.com, hokutokai.org, lifejapan.net, attaka.net and sptech.info.
Host name pop.lsv.jp points to IP 113.36.242.236.