rational-e.com - robtex.com
rational-e.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.203.131🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | a700.hanbai.com | ||||||
| NS | 01.dnsv.jp ⭐ | ||||||
| A | 2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc. | ||||||
| PTR | 01.dnsv.jp | ||||||
| A | 157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 01.dnsv.jp | ||||||
| NS | 02.dnsv.jp | ||||||
| A | 157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 02.dnsv.jp | ||||||
| NS | 03.dnsv.jp | ||||||
| A | 2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc. | ||||||
| PTR | 03.dnsv.jp | ||||||
| A | 157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 03.dnsv.jp | ||||||
| NS | 04.dnsv.jp | ||||||
| A | 2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc. | ||||||
| PTR | 04.dnsv.jp | ||||||
| A | 157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 04.dnsv.jp | ||||||
| MX | rational-e.com ⭐ | ||||||
| A | 49.212.203.131🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | a700.hanbai.com | ||||||
| TXT | v=spf1 +a +mx +ip4:49.212.203.131 ~all | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1766526107 | ||||||
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=1784594052 | ||||||
MX for
rational-e.com |
Same first word
rational-e.com |
Similar names
DNS History
8 records (6 active, 2 former)
●NS01.dnsv.jp2015-07-12 → 2026-07-21 · 3 obs
● 2015-07-12 04:14:14
● 2026-07-21 00:55:12
●NS02.dnsv.jp2015-07-12 → 2026-07-21 · 3 obs
● 2015-07-12 04:14:14
● 2026-07-21 00:55:12
●NS03.dnsv.jp2015-07-12 → 2026-07-21 · 3 obs
● 2015-07-12 04:14:14
● 2026-07-21 00:55:12
●NS04.dnsv.jp2015-07-12 → 2026-07-21 · 3 obs
● 2015-07-12 04:14:14
● 2026-07-21 00:55:12
○MXmail.rational-e.com2008-03-20 → 2008-03-20 · 3 obs
○ 2015-07-12 04:14:14
○ 2026-07-21 00:55:12
●MXrational-e.com2015-07-12 → 2026-07-21 · 3 obs
● 2015-07-12 04:14:14
● 2026-07-21 00:55:12
○A133.242.180.1082015-07-12 → 2017-11-22 · 5 obs
● 2015-07-12 04:14:14
● 2017-11-22 06:34:56
○ 2026-02-23 05:26:46
○ 2026-07-21 00:55:12
●A49.212.203.1312026-02-23 → 2026-07-21 · 3 obs
● 2026-02-23 05:26:46
● 2026-07-21 00:55:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net... | - |
| rational-e.com | 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp | - |
✅ Authoritative Response
Server:157.7.32.53
NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rational-e.com (unsigned zone)
⏱️ Timing
Total: 1147ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.203.131 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 1 | rational-e.com (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:49.212.203.131 ~all |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
Mail Server Role
rational-e.com handles its own mail, functioning as its own mail server.
IP Addresses
rational-e.com resolves to just one IP address, 49.212.203.131.
Two other host names, along with keisys.com, live-well.co.jp and mail.dion-style.com, also share IP numbers with rational-e.com.
Name Servers
The NS records for rational-e.com point to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
rational-e.com partially shares its NS delegation with several other domains, including mcrypt.click, ryodensha.co.jp, ikiikinet.com and two others.
Host names that have two IP addresses:
01.dnsv.jp has two IP addresses: 157.7.32.53 and 2400:8500:3300::53.
03.dnsv.jp has two IP addresses: 157.7.34.53 and 2400:8500:3000::53.
04.dnsv.jp has two IP addresses: 157.7.35.53 and 2400:8500:3fff::53.
Host names that point to one IP address:
02.dnsv.jp directs to 157.7.33.53.
Mail Servers
rational-e.com is served by just one mail server: rational-e.com.
rational-e.com has exactly one IP number: 49.212.203.131.