2nd-z.com - robtex.com
2nd-z.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.90.183.168🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | x018.cbsv.jp | ||||||
| NS | a.misconfigured.dns.server.invalid ⭐ | ||||||
| NS | ns1.cbsv.jp | ||||||
| A | 172.64.52.149🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.52.199🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.cbsv.jp | ||||||
| A | 172.64.53.51🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.53.143🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | 2nd-z.com ⭐ | ||||||
| A | 183.90.183.168🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | x018.cbsv.jp | ||||||
| TXT | v=spf1 ip4:183.90.183.168 include:_spf.cbsv.jp ~all | ||||||
| SOA | a.misconfigured.dns.server.invalidhostmaster@2nd-z.com 2025-10-22 #7 | ||||||
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=1778734591 | ||||||
MX for
2nd-z.com |
Same first word
2nd-z.com |
DNS History
5 records (5 active, 0 former)
●NSa.misconfigured.dns.server.invalid2026-04-10 → 2026-05-14 · 2 obs
● 2026-05-14 05:14:44
●MX2nd-z.com2026-04-10 → 2026-05-14 · 2 obs
● 2026-05-14 05:14:44
●A183.90.183.1682026-04-10 → 2026-05-14 · 2 obs
● 2026-05-14 05:14:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 2nd-z.com | ns1.cbsv.jp, ns2.cbsv.jp | - |
✅ Authoritative Response
Server:172.64.52.149
NS records: ns1.cbsv.jp, ns2.cbsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 2nd-z.com (unsigned zone)
⏱️ Timing
Total: 1365ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.183.168 |
| NS | 2 | ns1.cbsv.jp, ns2.cbsv.jp |
| MX | 1 | 2nd-z.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:183.90.183.168 include:_spf.c |
| SOA | 1 | a.misconfigured.dns.server.invalid hostm |
Analysis
Mail Server Role
2nd-z.com serves as the mail server for 2nd-z.com.
IP Addresses
2nd-z.com points to IP number: 183.90.183.168.
Other host names such as st-futaba.jp, sky-passport.jp, reidau.com, sugiura-seikan.com and tatsuya-adult.com share IPs with 2nd-z.com.
Name Servers
2nd-z.com is delegated to three name servers: ns1.cbsv.jp, ns2.cbsv.jp and a.misconfigured.dns.server.invalid.
2nd-z.com at least partially shares name servers with other domains, for instance 35.154.45.in-addr.arpa, fullero.net, 60.187.81.in-addr.arpa, newfacesav.com and chemicals.ee.
these name servers are often used with the name servers ns1.domeeninimi.ee, ns2.domeeninimi.ee, ndns1.cosmotown.com, ndns2.cosmotown.com, ns1.vigbo.site, ns2.vigbo.site, ns1.radinko.com and ns2.radinko.com.
Host names with two IP numbers: ns1.cbsv.jp points to: 172.64.52.149 and 172.64.52.199; ns2.cbsv.jp points to: 172.64.53.51 and 172.64.53.143.
Mail Servers
2nd-z.com is handled by a single mail server, 2nd-z.com.
2nd-z.com points to a single IP: 183.90.183.168.