ubuntu257.com - robtex.com
ubuntu257.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 18.67.65.48🇺🇸 Amazon18.67.64.0/21 | ||||||
| PTR | server-18-67-65-48.iad89.r.cloudfront.net | ||||||
| A | 18.67.65.77🇺🇸 Amazon18.67.64.0/21 | ||||||
| A | 18.67.65.94🇺🇸 Amazon18.67.64.0/21 | ||||||
| A | 18.67.65.115🇺🇸 Amazon18.67.64.0/21 | ||||||
| NS | dz1.hostcocoa.com ⭐ | ||||||
| A | 205.251.192.193🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-193.awsdns-24.com | ||||||
| NS | dz2.hostcocoa.com | ||||||
| A | 205.251.194.168🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-680.awsdns-21.net | ||||||
| NS | dz3.hostcocoa.com ⚠️ Not in parent delegation | ||||||
| A | 205.251.196.126🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1150.awsdns-15.org | ||||||
| NS | dz4.hostcocoa.com ⚠️ Not in parent delegation | ||||||
| A | 205.251.199.154🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1946.awsdns-51.co.uk | ||||||
| TXT | v=spf1 ip4:52.79.92.223 ~all | ||||||
| SOA | dz1.hostcocoa.comawsdns-hostmaster@amazon.com serial=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=1771291435 | ||||||
DNS History
16 records (8 active, 8 former)
●NSdz1.hostcocoa.com2018-11-16 → 2026-03-10 · 3 obs
● 2018-11-16 19:07:18
● 2026-03-10 16:29:22
●NSdz2.hostcocoa.com2018-11-16 → 2026-03-10 · 3 obs
● 2018-11-16 19:07:18
● 2026-03-10 16:29:22
●NSdz3.hostcocoa.com2018-11-16 → 2026-03-10 · 3 obs
● 2018-11-16 19:07:18
● 2026-03-10 16:29:22
●NSdz4.hostcocoa.com2018-11-16 → 2026-03-10 · 3 obs
● 2018-11-16 19:07:18
● 2026-03-10 16:29:22
○NSns1.cafe24.co.kr2017-01-04 → 2017-01-04 · 3 obs
○ 2018-11-16 19:07:18
○ 2026-03-10 16:29:22
○NSns1.cafe24.com2017-01-04 → 2017-01-04 · 3 obs
○ 2018-11-16 19:07:18
○ 2026-03-10 16:29:22
○NSns2.cafe24.co.kr2017-01-04 → 2017-01-04 · 3 obs
○ 2018-11-16 19:07:18
○ 2026-03-10 16:29:22
○NSns2.cafe24.com2017-01-04 → 2017-01-04 · 3 obs
○ 2018-11-16 19:07:18
○ 2026-03-10 16:29:22
○NSubuntu257.com2017-01-04 → 2017-01-04 · 3 obs
○ 2018-11-16 19:07:18
○ 2026-03-10 16:29:22
○A13.209.176.122018-11-16 → 2018-11-16 · 4 obs
● 2018-11-16 19:07:18
○ 2026-03-10 16:29:20
○ 2026-03-10 16:29:22
○A13.209.31.1232018-11-16 → 2018-11-16 · 4 obs
● 2018-11-16 19:07:18
○ 2026-03-10 16:29:20
○ 2026-03-10 16:29:22
●A18.67.65.1152026-03-10 → 2026-03-10 · 3 obs
● 2026-03-10 16:29:20
● 2026-03-10 16:29:22
●A18.67.65.482026-03-10 → 2026-03-10 · 3 obs
● 2026-03-10 16:29:20
● 2026-03-10 16:29:22
●A18.67.65.772026-03-10 → 2026-03-10 · 3 obs
● 2026-03-10 16:29:20
● 2026-03-10 16:29:22
●A18.67.65.942026-03-10 → 2026-03-10 · 3 obs
● 2026-03-10 16:29:20
● 2026-03-10 16:29:22
○A183.111.156.302017-01-04 → 2017-01-04 · 3 obs
○ 2018-11-16 19:07:18
○ 2026-03-10 16:29:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| ubuntu257.com | dz1.hostcocoa.com, dz2.hostcocoa.com | 2 records |
✅ Authoritative Response
Server: 205.251.192.193
NS records: dz1.hostcocoa.com, dz2.hostcocoa.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ubuntu257.com (unsigned zone)
⏱️ Timing
Total: 63ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 18.67.65.94, 18.67.65.115... |
| NS | 4 | dz1.hostcocoa.com, dz2.hostcocoa.com... |
| TXT | 1 | v=spf1 ip4:52.79.92.223 ~all |
| SOA | 1 | dz1.hostcocoa.com awsdns-hostmaster.amaz |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dz1.hostcocoa.com, dz2.hostcocoa.com)
Analysis
IP Addresses
ubuntu257.com points to four IP numbers: 18.67.65.48, 18.67.65.77, 18.67.65.94 and 18.67.65.115.
Other host names, for instance www.tokai-housing.jp, dsjjfa41v6i41.cloudfront.net, d3i97tnehis2x2.cloudfront.net, d2raclwtbluii6.cloudfront.net and nodit.io share IP numbers with ubuntu257.com.
Name Servers
ubuntu257.com is delegated to four name servers: dz1.hostcocoa.com, dz2.hostcocoa.com, dz3.hostcocoa.com and dz4.hostcocoa.com.
ubuntu257.com shares name servers with other domains at least partially, for instance untype.co.kr, (0x736578)ypop.co.kr, hanilmedical.co.kr, kebhananojo.com and juseum.co.kr.
these name servers are commonly used together with ns2.imweb.me and ns.imweb.me.
Host names with a single IP:
dz1.hostcocoa.com points to 205.251.192.193.
dz2.hostcocoa.com points to 205.251.194.168.
dz3.hostcocoa.com points to 205.251.196.126.
dz4.hostcocoa.com points to 205.251.199.154.