top-sys.jp - robtex.com
top-sys.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.180.47🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2637.sakura.ne.jp | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | top-sys.jp ⭐ | ||||||
| A | 49.212.180.47🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2637.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2637.sakura.ne.jp mx ~allv=spf1 include:spf.drive.ne.jp ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-06-13 #5 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1776096003 | ||||||
MX for
top-sys.jp |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
○NSns00.drive.ne.jp2008-11-25 → 2019-03-23 · 3 obs
● 2019-03-23 21:43:22
○ 2026-04-13 16:31:06
○NSns01.drive.ne.jp2008-11-25 → 2019-03-23 · 3 obs
● 2019-03-23 21:43:22
○ 2026-04-13 16:31:06
○MXmg.drive.ne.jp2008-11-25 → 2019-03-23 · 3 obs
● 2019-03-23 21:43:22
○ 2026-04-13 16:31:06
●MXtop-sys.jp2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 16:31:06
○A202.152.216.122015-07-16 → 2019-03-23 · 4 obs
● 2015-07-16 20:49:28
● 2019-03-23 21:43:22
○ 2026-04-13 16:31:06
○A202.152.216.92008-11-25 → 2008-11-25 · 3 obs
○ 2015-07-16 20:49:28
○ 2026-04-13 16:31:06
●A49.212.180.472026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 16:31:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, c.dns.jp, h.dns.jp, a.dns.jp... | - |
| top-sys.jp | ns2.dns.ne.jp, ns1.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns2.dns.ne.jp, ns1.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for top-sys.jp (unsigned zone)
⏱️ Timing
Total: 906ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.180.47 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | top-sys.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www2637.sakura.ne.jp mx ~allv=s |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Mail Server Role
For top-sys.jp, the mail server is top-sys.jp.
IP Addresses
top-sys.jp resolves to one IP number: 49.212.180.47.
other host names including nayami7970.com, ndhs.ac.jp, finies.com, bakuon.org and milimacode.sakura.ne.jp share IP numbers with top-sys.jp.
Name Servers
top-sys.jp is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
top-sys.jp at least partially shares name servers with other domains, for instance sunbi-pr.com, huch.jp, vapoterie.com, popins.jp and star-english.info.
Host names with one IP number: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
top-sys.jp is served by a single mail server, top-sys.jp.
top-sys.jp resolves to IP 49.212.180.47.