catopt.org - dns.ninja
catopt.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | catopt.org ⭐ | ||||||
| NS | ns1.twain.jp | ||||||
| A | 160.16.121.31🇯🇵 SAKURA-B160.16.0.0/17 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ns1.twain.jp | ||||||
| NS | ns2.twain.jp | ||||||
| A | 133.130.60.95🇯🇵 GMO-INTERNET133.130.32.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | ns2.twain.jp | ||||||
| MX | vmail.twain.jp ⭐ | ||||||
| A | 163.44.165.222🇯🇵 GMO-INTERNET163.44.160.0/20 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | vmail.twain.jp | ||||||
| MX | mail02.twain.jp(20) | ||||||
| A | 150.95.141.63🇯🇵 GMO-INTERNET150.95.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mail02.twain.jp | ||||||
| TXT | v=spf1 mx +ip4:163.44.165.222 +ip4:150.95.141.63 +ip4:160.251.179.79 ~all | ||||||
| SOA | catopt.orgroot@catopt.org 2024-08-27 #2 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786100947 | ||||||
NS for
catopt.org |
Subdomains
smtp.catopt.org |
Same first word
catopt.org |
Similar names
DNS History
7 records (5 active, 2 former)
●NScatopt.org2015-06-08 → 2026-08-07 · 2 obs
● 2026-08-07 11:25:02
●MXmail02.twain.jp2016-01-03 → 2026-08-07 · 3 obs
● 2016-01-03 06:30:24
● 2026-08-07 11:25:02
○MXsmtp.catopt.org2015-06-08 → 2015-09-12 · 4 obs
● 2015-09-12 09:59:34
○ 2016-01-03 06:30:24
○ 2026-08-07 11:25:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| catopt.org | ns1.twain.jp, ns2.twain.jp | - |
✅ Authoritative Response
Server:160.16.121.31
NS records: ns1.twain.jp, ns2.twain.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for catopt.org (unsigned zone)
⏱️ Timing
Total: 1000ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.twain.jp, ns2.twain.jp |
| MX | 2 | mail02.twain.jp (pri: 20), vmail.twain.jp (pri: 10) |
| TXT | 1 | v=spf1 mx +ip4:163.44.165.222 +ip4:150.9 |
| SOA | 1 | catopt.org root.catopt.org |
Analysis
Hierarchy
smtp.catopt.org is delegated beneath catopt.org.
Name Server Role
The NS records for catopt.org point back to catopt.org itself.
It is common to find ns1.twain.jp and ns2.twain.jp serving as name servers together with catopt.org.
Name Servers
The DNS delegation for catopt.org uses three name servers — catopt.org, ns1.twain.jp and ns2.twain.jp.
catopt.org has name servers in common with a number of other domains — twain.jp, rehanavi.com, taiki.ne.jp and ipec2.com among them.
ns1.twain.jp → 160.16.121.31 and ns2.twain.jp → 133.130.60.95: one IP number per host name.
Mail Servers
catopt.org is served by two mail servers, mail02.twain.jp and vmail.twain.jp.
Mail server setup for catopt.org matches that of other domains, among them musti.com.
The mail servers of catopt.org overlap at least partially with those of other domains, including pcom.or.jp, twain.jp and taiki.ne.jp.
These mail servers are routinely seen in conjunction with the mail servers smtp.twain.jp and m1.pcom.or.jp.
mail02.twain.jp → 150.95.141.63 and vmail.twain.jp → 163.44.165.222: one IP number per host name.