cdn4u.com - robtex.com
cdn4u.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.p05.nsone.net ⭐ | ||||||
| A | 2620:4d:4000:6259:7:5:0:1🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48 | ||||||
| PTR | dns1.p05.nsone.net | ||||||
| A | 198.51.44.5🇺🇸 NSONE198.51.44.0/24 198.51.44.0 | ||||||
| PTR | dns1.p05.nsone.net | ||||||
| NS | dns2.p05.nsone.net | ||||||
| A | 2a00:edc0:6259:7:5::2🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2 | ||||||
| PTR | dns2.p05.nsone.net | ||||||
| A | 198.51.45.5🇺🇸 NSONE198.51.45.0/24 198.51.45.0 | ||||||
| PTR | dns2.p05.nsone.net | ||||||
| NS | dns3.p05.nsone.net | ||||||
| A | 2620:4d:4000:6259:7:5:0:3🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48 | ||||||
| PTR | dns3.p05.nsone.net | ||||||
| A | 198.51.44.69🇺🇸 NSONE198.51.44.0/24 198.51.44.0 | ||||||
| PTR | dns3.p05.nsone.net | ||||||
| NS | dns4.p05.nsone.net | ||||||
| A | 2a00:edc0:6259:7:5::4🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2 | ||||||
| PTR | dns4.p05.nsone.net | ||||||
| A | 198.51.45.69🇺🇸 NSONE198.51.45.0/24 198.51.45.0 | ||||||
| PTR | dns4.p05.nsone.net | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | dns1.p05.nsone.netwebmaste@us.ibm.com serial=1731334979 | ||||||
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=1774484167 | ||||||
Same first word
Similar names
DNS History
10 records (4 active, 6 former)
●NSdns1.p05.nsone.net2026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 00:17:26
● 2026-03-26 00:17:30
●NSdns2.p05.nsone.net2026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 00:17:26
● 2026-03-26 00:17:30
●NSdns3.p05.nsone.net2026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 00:17:26
● 2026-03-26 00:17:30
●NSdns4.p05.nsone.net2026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 00:17:26
● 2026-03-26 00:17:30
○NSns77.domaincontrol.com2015-06-27 → 2017-08-15 · 4 obs
● 2017-08-15 04:47:10
○ 2026-03-26 00:17:26
○ 2026-03-26 00:17:30
○NSns78.domaincontrol.com2015-06-27 → 2017-08-15 · 4 obs
● 2017-08-15 04:47:10
○ 2026-03-26 00:17:26
○ 2026-03-26 00:17:30
○MXcustmx.cscdns.net2026-03-26 → 2026-03-26 · 2 obs
○ 2026-03-26 00:17:30
○MXmailstore1.secureserver.net2015-06-27 → 2017-08-15 · 4 obs
● 2017-08-15 04:47:10
○ 2026-03-26 00:17:26
○ 2026-03-26 00:17:30
○MXsmtp.secureserver.net2015-06-27 → 2017-08-15 · 4 obs
● 2017-08-15 04:47:10
○ 2026-03-26 00:17:26
○ 2026-03-26 00:17:30
○A184.168.221.622015-06-27 → 2017-08-15 · 4 obs
● 2017-08-15 04:47:10
○ 2026-03-26 00:17:26
○ 2026-03-26 00:17:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cdn4u.com | dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net, dns4.p05.nsone.net | - |
✅ Authoritative Response
Server:198.51.44.69
NS records: dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net, dns4.p05.nsone.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdn4u.com (unsigned zone)
⏱️ Timing
Total: 276ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | dns1.p05.nsone.net, dns2.p05.nsone.net... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | dns1.p05.nsone.net webmaste.us.ibm.com |
Analysis
Name Servers
cdn4u.com is delegated to four name servers: dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net and dns4.p05.nsone.net.
cdn4u.com at least partially shares name servers with other domains such as gocloud.today, shop.ibm.com, kingspasture.com, lkapson.com and mgmllp.com.
These name servers are often used together with ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com, dns1.p01.nsone.net, connect1.squarespacedns.com, connect2.squarespacedns.com, ns01.thg-ns.net, ns02.thg-ns.net and ns03.thg-ns.net.
Host names with two IP numbers:
dns1.p05.nsone.net points to 2620:4d:4000:6259:7:5:0:1 and 198.51.44.5
dns2.p05.nsone.net points to 2a00:edc0:6259:7:5::2 and 198.51.45.5
dns3.p05.nsone.net points to 2620:4d:4000:6259:7:5:0:3 and 198.51.44.69
dns4.p05.nsone.net points to 2a00:edc0:6259:7:5::4 and 198.51.45.69