top-u.jp - robtex.com
top-u.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.163.91🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1481.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-u.jp ⭐ | ||||||
| A | 219.94.163.91🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1481.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www1481.sakura.ne.jp mx ~all | ||||||
| TXT | google-site-verification=8KZf70tCzkH6nbJtsJH-M_FKQwImdh8nd57rkdZJpMs | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-03-02 #3 | ||||||
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=1775992503 | ||||||
MX for
top-u.jp |
Subdomains
www.top-u.jp |
Same first word
Similar names
p-otu.com |
u-top.co.kr |
up-to.de |
to-up.com |
up-to.nl |
up-to.pro |
to-up.it |
to-up.net |
up-to.cn |
u-otp.co.kr |
up-to.space |
u-top.net |
p-out.com |
up-to.ru |
up-to.net |
up-to.us |
u-top.kr |
u-otp.com |
u-top.cn |
DNS History
8 records (5 active, 3 former)
●NSmaster.dns.ne.jp2026-04-12 → 2026-04-12 · 3 obs
● 2026-04-12 11:35:06
● 2026-04-12 11:35:08
●NSns1.dns.ne.jp2026-04-12 → 2026-04-12 · 3 obs
● 2026-04-12 11:35:06
● 2026-04-12 11:35:08
●NSns2.dns.ne.jp2026-04-12 → 2026-04-12 · 3 obs
● 2026-04-12 11:35:06
● 2026-04-12 11:35:08
○NSns3.sphere.ad.jp2015-08-07 → 2017-05-18 · 4 obs
● 2017-05-18 05:25:02
○ 2026-04-12 11:35:06
○ 2026-04-12 11:35:08
○NSns4.sphere.ad.jp2015-08-07 → 2017-05-18 · 4 obs
● 2017-05-18 05:25:02
○ 2026-04-12 11:35:06
○ 2026-04-12 11:35:08
●MXtop-u.jp2015-08-07 → 2026-04-12 · 2 obs
● 2026-04-12 11:35:08
○A1.33.175.1522015-08-07 → 2017-05-18 · 4 obs
● 2017-05-18 05:25:02
○ 2026-04-12 11:35:06
○ 2026-04-12 11:35:08
●A219.94.163.912026-04-12 → 2026-04-12 · 3 obs
● 2026-04-12 11:35:06
● 2026-04-12 11:35:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| top-u.jp | ns1.dns.ne.jp, ns2.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for top-u.jp (unsigned zone)
⏱️ Timing
Total: 1582ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.163.91 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | top-u.jp (pri: 10) |
| TXT | 2 | v=spf1 a:www1481.sakura.ne.jp mx ~all, google-site-verification=8KZf70tCzkH6nbJ |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)
Analysis
Hierarchy
www.top-u.jp has top-u.jp as its parent.
Mail Server Role
The mail server for top-u.jp is top-u.jp.
IP Addresses
top-u.jp maps to IP address 219.94.163.91.
Other host names, for instance cvbusinesslab.com, broa.jp, scratch.ne.jp, ansin.biz and shop100.jp share IP numbers with top-u.jp.
Name Servers
top-u.jp is delegated to name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
top-u.jp at least partially shares name servers with other domains such as ks-estate.com, fukumitu.sakura.ne.jp, kunpu.jp, salon-kanon.com and meimu.sakura.ne.jp.
these name servers are commonly used with the name servers dns.sakura.ad.jp.
Host names with a single IP:
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
One mail server serves top-u.jp.
top-u.jp points to one IP number: 219.94.163.91.