marcs.co.jp - robtex.com
marcs.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.226.36.29🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv28.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 | marcs.co.jp ⭐ | ||||||
| A | 202.226.36.29🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv28.sixcore.ne.jp | ||||||
| TXT | v=spf1 +a:sv28.sixcore.ne.jp +a:marcs.co.jp +mx include:spf.sender.xserver.jp... | ||||||
| TXT | google-site-verification=FYSWXQN4eRk9ErPYBrgaCKFQmgZcj2UFkzLAxIqnI8s | ||||||
| SOA | ns1.sixcore.ne.jproot@sv0.sixcore.ne.jp serial=0 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
marcs.co.jp |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.sixcore.ne.jp2015-07-15 → 2026-05-15 · 2 obs
● 2026-05-15 15:19:30
●NSns2.sixcore.ne.jp2015-07-15 → 2026-05-15 · 2 obs
● 2026-05-15 15:19:30
●NSns3.sixcore.ne.jp2015-07-15 → 2026-05-15 · 2 obs
● 2026-05-15 15:19:30
●MXmarcs.co.jp2015-07-15 → 2026-05-15 · 2 obs
● 2026-05-15 15:19:30
●A202.226.36.292026-05-11 → 2026-05-15 · 3 obs
● 2026-05-11 21:00:30
● 2026-05-15 15:19:30
○A219.94.200.292015-07-15 → 2018-07-17 · 4 obs
● 2018-07-17 04:25:52
○ 2026-05-11 21:00:30
○ 2026-05-15 15:19:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| marcs.co.jp | ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp | 3 records |
✅ 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 marcs.co.jp (unsigned zone)
⏱️ Timing
Total: 2753ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.226.36.29 |
| NS | 3 | ns3.sixcore.ne.jp, ns1.sixcore.ne.jp... |
| MX | 1 | marcs.co.jp (pri: 0) |
| TXT | 2 | v=spf1 +a:sv28.sixcore.ne.jp +a:marcs.co, google-site-verification=FYSWXQN4eRk9ErP |
| SOA | 1 | ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp)
Analysis
Mail Server Role
marcs.co.jp serves as the mail server for marcs.co.jp.
IP Addresses
marcs.co.jp points to a single IP address: 202.226.36.29.
Other host names such as whitebass.co.jp, www.meisen.ac.jp, hitosuji.com, www.shiga-u.ac.jp and kumamoto-panahome.co.jp share IP numbers with marcs.co.jp.
Name Servers
marcs.co.jp is delegated to three name servers: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.
At least part of the name servers for marcs.co.jp are shared with other domains, for instance bunri.info, shakkinseiri.com, watanabejp.com, websaito.com and yoshiyagolf.com.
Host names with a single IP:
ns1.sixcore.ne.jp points to: 202.226.36.232
ns2.sixcore.ne.jp points to: 202.226.39.241
ns3.sixcore.ne.jp points to: 202.226.37.248
Mail Servers
Mail for marcs.co.jp is handled by a single mail server, marcs.co.jp.
Host marcs.co.jp points to IP 202.226.36.29.