sei-ddns.net - robtex.com
sei-ddns.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 68.199.6.15🇺🇸 AS612868.199.0.0/21 | ||||||
| PTR | ool-44c7060f.dyn.optonline.net | ||||||
| NS | ns2.no-ip.com ⭐ | ||||||
| A | 2a07:dc00:180::53🇺🇸 AS299972a07:dc00:180::/44 | ||||||
| PTR | ns2.no-ip.com | ||||||
| A | 194.62.180.53🇺🇸 AS29997194.62.180.0/24 | ||||||
| PTR | ns2.no-ip.com | ||||||
| NS | ns1.no-ip.com | ||||||
| A | 2a07:dc00:1810::53🇺🇸 AS299972a07:dc00:1810::/44 | ||||||
| PTR | ns1.no-ip.com | ||||||
| A | 194.62.181.53🇺🇸 AS29997194.62.181.0/24 | ||||||
| PTR | ns1.no-ip.com | ||||||
| NS | ns3.no-ip.com | ||||||
| A | 2a07:dc00:2550::53🇺🇸 AS299972a07:dc00:2550::/44 | ||||||
| PTR | ns3.no-ip.com | ||||||
| A | 204.16.255.53🇺🇸 AS29997204.16.255.0/24 Vultr Customer Route | ||||||
| PTR | ns3.no-ip.com | ||||||
| NS | ns4.no-ip.com | ||||||
| A | 2620:0:2e64::53🇺🇸 AS299972620:0:2e64::/48 Vitalwerks Internet Solutions, LLC dba No-IP | ||||||
| PTR | ns4.no-ip.com | ||||||
| A | 204.16.254.53🇺🇸 AS29997204.16.254.0/24 Vultr Customer Route | ||||||
| PTR | ns4.no-ip.com | ||||||
| NS | ns5.no-ip.com | ||||||
| A | 194.62.181.53🇺🇸 AS29997194.62.181.0/24 | ||||||
| PTR | ns1.no-ip.com | ||||||
| MX | mail.sei-ddns.net ⭐ | ||||||
| SOA | ns2.no-ip.comhostmaster@no-ip.com serial=2017024213 | ||||||
net
| 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=1774957237 | ||||||
Same first word
sei-ddns.net |
DNS History
7 records (7 active, 0 former)
●MXmail.sei-ddns.net2018-05-16 → 2026-03-31 · 2 obs
● 2026-03-31 11:53:52
●A68.199.6.152018-05-16 → 2026-03-31 · 2 obs
● 2026-03-31 11:53:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | l.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net... | - |
| sei-ddns.net | ns3.no-ip.com, ns2.no-ip.com, ns1.no-ip.com, ns4.no-ip.com... | - |
✅ Authoritative Response
Server:204.16.255.53
NS records: ns3.no-ip.com, ns2.no-ip.com, ns1.no-ip.com, ns4.no-ip.com, ns5.no-ip.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sei-ddns.net (unsigned zone)
⏱️ Timing
Total: 614ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 68.199.6.15 |
| NS | 5 | ns3.no-ip.com, ns5.no-ip.com... |
| MX | 1 | mail.sei-ddns.net (pri: 5) |
| SOA | 1 | ns2.no-ip.com hostmaster.no-ip.com |
Analysis
IP Addresses
sei-ddns.net resolves to a single IP: 68.199.6.15.
Other host names share IP numbers with sei-ddns.net; for instance ool-44c7060f.dyn.optonline.net.
Name Servers
sei-ddns.net delegates to five name servers: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com and ns5.no-ip.com.
sei-ddns.net shares some name servers with other domains, for example azzopardi.info, docstack.io, lehrman.info, spongygryphon6.com and smallen.org.
These name servers are often used together with static-1.no-ip.com, static-2.no-ip.com and static-3.no-ip.com.
Two-IP hostnames:
ns1.no-ip.com points to: 2a07:dc00:1810::53 and 194.62.181.53
ns2.no-ip.com points to: 2a07:dc00:180::53 and 194.62.180.53
ns3.no-ip.com points to: 2a07:dc00:2550::53 and 204.16.255.53
ns4.no-ip.com points to: 2620:0:2e64::53 and 204.16.254.53
Single-IP hostnames:
ns5.no-ip.com points to: 194.62.181.53
Hostnames pointing to 194.62.181.53:
ns1.no-ip.com and ns5.no-ip.com
Mail Servers
sei-ddns.net is handled by a single mail server, mail.sei-ddns.net.