dosudoku.com - robtex.com
dosudoku.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 46.249.203.138🇬🇧 PULSANT-AS46.249.192.0/19 Pulsant Ltd | ||||||
| PTR | www.brainedup.com | ||||||
| NS | ns1.systemdns.com ⭐ | ||||||
| A | 2604:4000:0:d:216:40:47:90🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000 | ||||||
| PTR | ns1.systemdns.com | ||||||
| A | 216.40.47.90🇨🇦 TUCOWS216.40.47.0/24 -BRA-BLK1.4/NET-216-40-47-0 | ||||||
| PTR | ns1.systemdns.com | ||||||
| NS | ns2.systemdns.com | ||||||
| A | 2604:4000:2800:d:64:99:148:16🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co. | ||||||
| PTR | ns2.systemdns.com | ||||||
| A | 64.98.148.16🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co. | ||||||
| PTR | ns2.systemdns.com | ||||||
| NS | ns3.systemdns.com | ||||||
| A | 2604:4000:0:d:64:99:96:36🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000 | ||||||
| PTR | ns3.systemdns.com | ||||||
| A | 64.99.96.36🇨🇦 TUCOWS64.99.96.0/24 -BRA-BLK2.7.2 | ||||||
| PTR | ns3.systemdns.com | ||||||
| MX | mx.happyserver.co.uk ⭐ | ||||||
| A | 178.62.5.149🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean | ||||||
| PTR | lon-mx.happyserver.co.uk | ||||||
| SOA | ns1.systemdns.comhostmaster@systemdns.com serial=1751977387 | ||||||
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=1776023592 | ||||||
Same first word
dosudoku.com |
DNS History
5 records (5 active, 0 former)
●NSns1.systemdns.com2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 20:07:24
●NSns2.systemdns.com2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 20:07:24
●NSns3.systemdns.com2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 20:07:24
●MXmx.happyserver.co.uk2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 20:07:24
●A46.249.203.1382015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 20:07:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net... | - |
| dosudoku.com | ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com | 6 records |
✅ Authoritative Response
Server:216.40.47.90
NS records: ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dosudoku.com (unsigned zone)
⏱️ Timing
Total: 275ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.249.203.138 |
| NS | 3 | ns3.systemdns.com, ns2.systemdns.com... |
| MX | 1 | mx.happyserver.co.uk (pri: 10) |
| SOA | 1 | ns1.systemdns.com hostmaster.systemdns.c |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.systemdns.com, ns1.systemdns.com, ns2.systemdns.com...)
Analysis
IP Addresses
dosudoku.com points to a single IP address: 46.249.203.138.
Other host names such as brainedup.com, costdrop.com, yajilin.co.uk, phalb.co.uk and www.brainedup.com share IPs with dosudoku.com.
Name Servers
dosudoku.com is delegated to three name servers: ns1.systemdns.com, ns2.systemdns.com and ns3.systemdns.com.
dosudoku.com at least partially shares name servers with other domains, for example occ-online.com, prhdtruck.com, asbar.net, irvines.biz and mtpeters.com.
Host names with two IP numbers:
ns1.systemdns.com points to 2604:4000:0:d:216:40:47:90 and 216.40.47.90
ns2.systemdns.com points to 2604:4000:2800:d:64:99:148:16 and 64.98.148.16
ns3.systemdns.com points to 2604:4000:0:d:64:99:96:36 and 64.99.96.36
Mail Servers
The mx.happyserver.co.uk mail server handles dosudoku.com.
dosudoku.com shares the same mail server setup as other domains, including davidclover-festivalofsinging.org.uk, godlyplay.org.uk, rowansmusic.com, derringer.co.uk and georgedavalle.com.
dosudoku.com shares at least some mail servers with other domains, for instance happyserver.co.uk, lurdes-hope.uk and bcml.info.
these mail servers are commonly used with mail-a-mx.happyserver.co.uk.
mx.happyserver.co.uk points to a single IP number: 178.62.5.149.