tcd.plus - dns.ninja
tcd.plus
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.181.99.107🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc. | ||||||
| PTR | sv1406.sixcore.ne.jp | ||||||
| NS | ns1.sixcore.ne.jp ⭐ | ||||||
| A | 202.226.36.232🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns1.sixcore.ne.jp | ||||||
| NS | ns2.sixcore.ne.jp | ||||||
| A | 202.226.39.241🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns2.sixcore.ne.jp | ||||||
| NS | ns3.sixcore.ne.jp | ||||||
| A | 202.226.37.248🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.sixcore.ne.jp | ||||||
| MX | tcd.plus ⭐ | ||||||
| A | 183.181.99.107🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc. | ||||||
| PTR | sv1406.sixcore.ne.jp | ||||||
| TXT | v=spf1 +a:sv1406.sixcore.ne.jp +a:tcd.plus +mx include:spf.sender.xserver.jp ... | ||||||
| SOA | ns1.sixcore.ne.jproot@sv0.sixcore.ne.jp serial=0 | ||||||
plus
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.plus ⭐ | ||||||
| NS | v0n1.nic.plus | ||||||
| NS | v0n2.nic.plus | ||||||
| NS | v0n3.nic.plus | ||||||
| NS | v2n0.nic.plus | ||||||
| NS | v2n1.nic.plus | ||||||
| SOA | v0n0.nic.plushostmaster@donuts.email serial=1780582208 | ||||||
MX for
tcd.plus |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.sixcore.ne.jp2019-01-01 → 2026-06-04 · 2 obs
● 2026-06-04 14:28:00
●NSns2.sixcore.ne.jp2019-01-01 → 2026-06-04 · 2 obs
● 2026-06-04 14:28:00
●NSns3.sixcore.ne.jp2019-01-01 → 2026-06-04 · 2 obs
● 2026-06-04 14:28:00
●MXtcd.plus2019-01-01 → 2026-06-04 · 2 obs
● 2026-06-04 14:28:00
○A157.112.144.1212019-01-01 → 2019-01-01 · 3 obs
○ 2026-02-14 16:11:06
○ 2026-06-04 14:28:00
●A183.181.99.1072026-02-14 → 2026-06-04 · 3 obs
● 2026-02-14 16:11:06
● 2026-06-04 14:28:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| plus | v2n1.nic.plus, v2n0.nic.plus, v0n3.nic.plus, v0n0.nic.plus... | 12 records |
| tcd.plus | ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp | - |
✅ Authoritative Response
Server:202.226.36.232
NS records: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tcd.plus (unsigned zone)
⏱️ Timing
Total: 1049ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.99.107 |
| NS | 3 | ns2.sixcore.ne.jp, ns1.sixcore.ne.jp... |
| MX | 1 | tcd.plus (pri: 0) |
| TXT | 1 | v=spf1 +a:sv1406.sixcore.ne.jp +a:tcd.pl |
| SOA | 1 | ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v2n1.nic.plus, v2n0.nic.plus, v0n3.nic.plus...)
Analysis
Mail Server Role
tcd.plus handles its own mail, functioning as its own mail server.
IP Addresses
tcd.plus resolves to just one IP address, 183.181.99.107.
sv1406.sixcore.ne.jp is an example of another host name that shares IP numbers with tcd.plus.
Name Servers
tcd.plus has three name servers — ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.
tcd.plus partially shares its NS delegation with several other domains, including b-cles.jp, bancho-law.com, com-m.com and two others.
Each of the three hostnames points to exactly one IP address: ns1.sixcore.ne.jp points to 202.226.36.232, ns2.sixcore.ne.jp points to 202.226.39.241 and ns3.sixcore.ne.jp points to 202.226.37.248.
Mail Servers
tcd.plus is served by just one mail server: tcd.plus.
tcd.plus points to one IP number — 183.181.99.107.