ryutu.com - dns.ninja
ryutu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 75.2.50.204🇺🇸 Amazon75.2.48.0/20 | ||||||
| PTR | acfd3e59488685b2a.awsglobalaccelerator.com | ||||||
| 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 | mail.ryutu.com ⭐ | ||||||
| A | 202.226.36.45🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv44.sixcore.ne.jp | ||||||
| TXT | v=spf1 +a:sv44.sixcore.ne.jp +a:ryutu.com +mx include:spf.sender.xserver.jp ~all | ||||||
| SOA | ns1.sixcore.ne.jproot@sv0.sixcore.ne.jp serial=0 | ||||||
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=1786078264 | ||||||
Previously MX for
ryutu.com |
Subdomains
Same first word
ryutu.com |
Similar names
DNS History
7 records (5 active, 2 former)
●NSns1.sixcore.ne.jp2015-08-08 → 2026-08-07 · 2 obs
● 2026-08-07 05:10:58
●NSns2.sixcore.ne.jp2015-08-08 → 2026-08-07 · 2 obs
● 2026-08-07 05:10:58
●NSns3.sixcore.ne.jp2015-08-08 → 2026-08-07 · 2 obs
● 2026-08-07 05:10:58
●MXmail.ryutu.com2026-02-26 → 2026-08-07 · 3 obs
● 2026-02-26 02:28:16
● 2026-08-07 05:10:58
○MXryutu.com2015-08-08 → 2017-08-27 · 4 obs
● 2017-08-27 14:59:14
○ 2026-02-26 02:28:16
○ 2026-08-07 05:10:58
○A219.94.200.452015-08-08 → 2017-08-27 · 4 obs
● 2017-08-27 14:59:14
○ 2026-02-26 02:28:16
○ 2026-08-07 05:10:58
●A75.2.50.2042026-02-26 → 2026-08-07 · 3 obs
● 2026-02-26 02:28:16
● 2026-08-07 05:10:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net... | - |
| ryutu.com | ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp | - |
✅ Authoritative Response
Server:202.226.39.241
NS records: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ryutu.com (unsigned zone)
⏱️ Timing
Total: 1011ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 75.2.50.204 |
| NS | 3 | ns1.sixcore.ne.jp, ns3.sixcore.ne.jp... |
| MX | 1 | mail.ryutu.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv44.sixcore.ne.jp +a:ryutu.co |
| SOA | 1 | ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp |
Analysis
Hierarchy
ryutu.com is the parent domain of www.ryutu.com and mail.ryutu.com.
IP Addresses
ryutu.com points to a single IP number: 75.2.50.204.
Additional host names — houserlife.co.jp, furukawanet.co.jp, hakushin-f.co.jp and two others — share IP numbers with ryutu.com.
Name Servers
ryutu.com has three name servers — ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.
There is at least partial name server overlap between ryutu.com and other domains — nazotoki-concierge.com, anime117.com, e-apex.co.jp and two more among them.
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
ryutu.com has one mail server: mail.ryutu.com.
mail.ryutu.com points to one IP number — 202.226.36.45.