lab751.com - robtex.com
lab751.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.155.236🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www446b.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 | lab751.com ⭐ | ||||||
| A | 219.94.155.236🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www446b.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www446b.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2023-01-12 #12 | ||||||
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=1785559662 | ||||||
MX for
lab751.com |
Subdomains
Same first word
lab751.sakura.ne.jp |
lab751.com |
DNS History
9 records (5 active, 4 former)
○NSdns01.gmoserver.jp2015-07-14 → 2017-01-27 · 4 obs
● 2017-01-27 18:42:06
○ 2026-03-06 17:12:06
○ 2026-08-01 04:52:00
○NSdns02.gmoserver.jp2015-07-14 → 2017-01-27 · 4 obs
● 2017-01-27 18:42:06
○ 2026-03-06 17:12:06
○ 2026-08-01 04:52:00
●NSmaster.dns.ne.jp2026-03-06 → 2026-08-01 · 3 obs
● 2026-03-06 17:12:06
● 2026-08-01 04:52:00
●NSns1.dns.ne.jp2026-03-06 → 2026-08-01 · 3 obs
● 2026-03-06 17:12:06
● 2026-08-01 04:52:00
●NSns2.dns.ne.jp2026-03-06 → 2026-08-01 · 3 obs
● 2026-03-06 17:12:06
● 2026-08-01 04:52:00
●MXlab751.com2026-03-06 → 2026-08-01 · 3 obs
● 2026-03-06 17:12:06
● 2026-08-01 04:52:00
○MXmx7.gmoserver.jp2015-07-14 → 2017-01-27 · 4 obs
● 2017-01-27 18:42:06
○ 2026-03-06 17:12:06
○ 2026-08-01 04:52:00
●A219.94.155.2362026-03-06 → 2026-08-01 · 3 obs
● 2026-03-06 17:12:06
● 2026-08-01 04:52:00
○A49.212.35.962015-07-14 → 2017-01-27 · 4 obs
● 2017-01-27 18:42:06
○ 2026-03-06 17:12:06
○ 2026-08-01 04:52:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| lab751.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lab751.com (unsigned zone)
⏱️ Timing
Total: 1381ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.155.236 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | lab751.com (pri: 10) |
| TXT | 1 | v=spf1 a:www446b.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Hierarchy
The parent domain of mail.lab751.com and www.lab751.com is lab751.com.
Mail Server Role
The MX record for lab751.com points back to lab751.com — it is its own mail server.
IP Addresses
lab751.com directs to one IP number, which is 219.94.155.236.
Among the host names that share IP numbers with lab751.com are fooran.jp, towada.or.jp, zakuplex.sakura.ne.jp and two others.
Name Servers
Three name servers are authoritative for lab751.com: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
At least some of lab751.com's name servers are shared with other domains, for example kuramise.net, attu.jp, 8.167.133.in-addr.arpa and two more.
These name servers tend to be used in conjunction with the name servers dns.sakura.ad.jp.
Three hostnames, one IP address apiece: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
The MX record for lab751.com points to a single mail server: lab751.com.
There is one IP number for lab751.com: 219.94.155.236.