rubygroup.com.sg - dns.ninja
rubygroup.com.sg
com.sg
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ds.sgnic.sg ⭐ | ||||||
| NS | dsany2.sgnic.sg ⚠️ Not in parent delegation | ||||||
| NS | dsany3.sgnic.sg ⚠️ Not in parent delegation | ||||||
| NS | dsany4.sgnic.sg ⚠️ Not in parent delegation | ||||||
| NS | pch.sgzones.sg ⚠️ Not in parent delegation | ||||||
| SOA | ds.sgnic.sgdna@sgnic.sg serial=2608191000 | ||||||
Same first word
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DNS History
12 records (11 active, 1 former)
○NSdnspri.singnet.com.sg2015-05-11 → 2016-09-13 · 4 obs
● 2016-09-13 23:23:46
○ 2026-08-18 04:57:34
○ 2026-08-19 10:34:50
●NSdnssec1.singnet.com.sg2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●NSdnssec2.singnet.com.sg2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●NSdnssec3.singnet.com.sg2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXalt1.aspmx.l.google.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXalt2.aspmx.l.google.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXaspmx.l.google.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXaspmx2.googlemail.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXaspmx3.googlemail.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXaspmx4.googlemail.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●MXaspmx5.googlemail.com2015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
●A203.120.90.1652015-05-11 → 2026-08-19 · 2 obs
● 2026-08-19 10:34:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sg | ns4.apnic.net, pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg... | 10 records |
| rubygroup.com.sg | dnssec3.singnet.com.sg, dnssec2.singnet.com.sg, dnssec1.singnet.com.sg | 3 records |
✅ Authoritative Response
Server:165.21.100.11
NS records: dnssec3.singnet.com.sg, dnssec2.singnet.com.sg, dnssec1.singnet.com.sg
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rubygroup.com.sg (unsigned zone)
⏱️ Timing
Total: 1134ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.120.90.165 |
| NS | 3 | dnssec3.singnet.com.sg, dnssec1.singnet.com.sg... |
| MX | 7 | ASPMX2.GOOGLEMAIL.COM (pri: 30), ASPMX5.GOOGLEMAIL.COM (pri: 30)... |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | dnssec1.singnet.com.sg hostmaster.singne |
📌 Glue Records Collected
Total: 13
In-bailiwick: 8 (pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg...)
Out-of-bailiwick: 5 (ns4.apnic.net, ns4.apnic.net, dnssec3.singnet.com.sg...)
Analysis
IP Addresses
rubygroup.com.sg has exactly one IP address — 203.120.90.165.
There are other host names — sg.aedas.com among them — that share IP numbers with rubygroup.com.sg.
Name Servers
DNS for rubygroup.com.sg is handled by three authoritative name servers: dnssec1.singnet.com.sg, dnssec2.singnet.com.sg and dnssec3.singnet.com.sg.
rubygroup.com.sg has at least partial name server overlap with other domains, such as 166.234.119.in-addr.arpa, 189.126.203.in-addr.arpa, tecan.com.sg and two others.
Host names pointing to two IP addresses:
dnssec1.singnet.com.sg has two IP addresses: 165.21.83.11 and 2001:c20:18:a::36.
dnssec3.singnet.com.sg has two IP addresses: 165.21.100.11 and 2001:c20:10:a::37.
Host names resolving to a single IP address:
dnssec2.singnet.com.sg directs to 165.21.100.11.
Host names pointing to 165.21.100.11 IP addresses: dnssec3.singnet.com.sg and dnssec2.singnet.com.sg.
Mail Servers
Mail for rubygroup.com.sg is routed through 7 mail servers, including aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
At least some of the mail servers used by rubygroup.com.sg are shared with other domains: basturdbrand.com, 12fly.com.my, ambrose.co.uk and two others among them.
These mail servers are often deployed together with aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com has two IP addresses: 192.178.234.26 and 2800:3f0:4003:c14::1b.
aspmx3.googlemail.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.
aspmx4.googlemail.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.
aspmx5.googlemail.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1a.
aspmx.l.google.com has two IP addresses: 172.253.115.27 and 2607:f8b0:4004:c09::1a.
alt1.aspmx.l.google.com has two IP addresses: 192.178.234.27 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com has two IP addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.
Host names pointing to 2800:3f0:4003:c14::1b IP addresses: aspmx2.googlemail.com and alt1.aspmx.l.google.com.
Host names pointing to 2a00:1450:400b:c02::1b IP addresses: aspmx3.googlemail.com and alt2.aspmx.l.google.com.