cottha5108.com - robtex.com
cottha5108.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 114.17.21.149🇯🇵 KDDI114.17.0.0/16 | ||||||
| PTR | dns5.n-server.com | ||||||
| NS | ns2.cottha5108.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 114.17.21.149🇯🇵 KDDI114.17.0.0/16 | ||||||
| PTR | dns5.n-server.com | ||||||
| NS | dns136.n-server.com ⚠️ Not in zone NS records | ||||||
| A | 114.17.21.136🇯🇵 KDDI114.17.0.0/16 | ||||||
| PTR | dns136.n-server.com | ||||||
| NS | dns5.n-server.com ⚠️ Not in zone NS records | ||||||
| A | 114.17.21.149🇯🇵 KDDI114.17.0.0/16 | ||||||
| PTR | dns5.n-server.com | ||||||
| NS | ns1.cottha5108.com ⚠️ Not in parent delegation | ||||||
| A | 114.17.21.149🇯🇵 KDDI114.17.0.0/16 | ||||||
| PTR | dns5.n-server.com | ||||||
| MX | mail.cottha5108.com ⭐ | ||||||
| A | 114.17.21.149🇯🇵 KDDI114.17.0.0/16 | ||||||
| PTR | dns5.n-server.com | ||||||
| TXT | v=spf1 +a +mx +a:dns5.n-server.com -all | ||||||
| SOA | ns2.cottha5108.complesk@purenic.jp 2025-10-15 #2 | ||||||
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=1775421567 | ||||||
Subdomains
Same first word
cottha5108.com |
DNS History
7 records (6 active, 1 former)
●NSdns136.n-server.com2026-03-20 → 2026-04-05 · 3 obs
● 2026-03-20 18:17:42
● 2026-04-05 20:49:10
●NSdns5.n-server.com2026-03-20 → 2026-04-05 · 3 obs
● 2026-03-20 18:17:42
● 2026-04-05 20:49:10
●NSns1.cottha5108.com2018-09-19 → 2026-04-05 · 2 obs
● 2026-04-05 20:49:10
●NSns2.cottha5108.com2018-09-19 → 2026-04-05 · 2 obs
● 2026-04-05 20:49:10
●MXmail.cottha5108.com2018-09-19 → 2026-04-05 · 2 obs
● 2026-04-05 20:49:10
●A114.17.21.1492026-03-20 → 2026-04-05 · 3 obs
● 2026-03-20 18:17:42
● 2026-04-05 20:49:10
○A27.85.233.432018-09-19 → 2018-09-19 · 3 obs
○ 2026-03-20 18:17:42
○ 2026-04-05 20:49:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cottha5108.com | dns5.n-server.com, dns136.n-server.com | 2 records |
✅ Authoritative Response
Server:114.17.21.136
NS records: dns5.n-server.com, dns136.n-server.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cottha5108.com (unsigned zone)
⏱️ Timing
Total: 383ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 114.17.21.149 |
| NS | 2 | ns1.cottha5108.com, ns2.cottha5108.com |
| MX | 1 | mail.cottha5108.com (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:dns5.n-server.com -all |
| SOA | 1 | ns2.cottha5108.com plesk.purenic.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns5.n-server.com, dns136.n-server.com)
Analysis
Hierarchy
The parent of ns2.cottha5108.com, ns1.cottha5108.com and mail.cottha5108.com is cottha5108.com.
IP Addresses
cottha5108.com points to an IP address: 114.17.21.149.
other host names include ns1.k1ckbox1ng.com, yk-air.com, ns.egao4618.com, mail.newtown-chuo.com and mail.koubou-nu.com; they share IP numbers with cottha5108.com.
Name Servers
cottha5108.com delegates to four name servers: ns1.cottha5108.com, ns2.cottha5108.com, dns136.n-server.com and dns5.n-server.com.
cottha5108.com at least partially shares name servers with other domains, for instance ueu.jp, shizuka.jp, kumikosenglishsalon.com, mauto.co.jp and fill-sapporo.com.
these name servers are commonly used with dns12.n-server.com, dns10.n-server.com, dns19.n-server.com, dns7.n-server.com, dns20.n-server.com, dns15.n-server.com, dns14.n-server.com, dns16.n-server.com, dns3.n-server.com and p03ns11.puretopure.jp.
Host names with a single IP address:
ns1.cottha5108.com points to: 114.17.21.149
ns2.cottha5108.com points to: 114.17.21.149
dns136.n-server.com points to: 114.17.21.136
dns5.n-server.com points to: 114.17.21.149
Names pointing to 114.17.21.149: ns1.cottha5108.com, ns2.cottha5108.com and dns5.n-server.com
Mail Servers
cottha5108.com is handled by a single mail server, mail.cottha5108.com.
The host name mail.cottha5108.com points to IP 114.17.21.149.