itmac.jp - dns.ninja
itmac.jp
| DNSSEC | โ ๏ธ Not signed | ||||||
| NS | dns2.itmac.jp โญ | ||||||
| A | 218.217.251.150๐ฏ๐ต INFOWEB218.217.128.0/17 InfoWeb | ||||||
| NS | dns.itmac.jp | ||||||
| A | 218.217.251.137๐ฏ๐ต INFOWEB218.217.128.0/17 InfoWeb | ||||||
| NS | ns01.ipn.web.ad.jp | ||||||
| A | 202.248.0.70๐ฏ๐ต INFOWEB202.248.0.0/16 InfoWeb | ||||||
| PTR | ns01.ipn.web.ad.jp | ||||||
| NS | ns02.ipn.web.ad.jp | ||||||
| A | 202.248.2.199๐ฏ๐ต INFOWEB202.248.0.0/16 InfoWeb | ||||||
| PTR | ns02.ipn.web.ad.jp | ||||||
| MX | dns2.itmac.jp โญ | ||||||
| A | 218.217.251.150๐ฏ๐ต INFOWEB218.217.128.0/17 InfoWeb | ||||||
| MX | dns.itmac.jp(20) | ||||||
| A | 218.217.251.137๐ฏ๐ต INFOWEB218.217.128.0/17 InfoWeb | ||||||
| TXT | v=spf1 ip4:218.217.251.128/26 ~all | ||||||
| SOA | dns.itmac.jproot@itmac.jp 2025-03-18 #2 | ||||||
jp
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | z.dns.jp โญ | ||||||
| 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=1786890603 | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
โNSdns.itmac.jp2015-08-09 โ 2026-08-16 ยท 2 obs
โ 2026-08-16 14:32:36
โNSdns2.itmac.jp2015-08-09 โ 2026-08-16 ยท 2 obs
โ 2026-08-16 14:32:36
โNSns01.ipn.web.ad.jp2015-08-09 โ 2026-08-16 ยท 2 obs
โ 2026-08-16 14:32:36
โNSns02.ipn.web.ad.jp2015-08-09 โ 2026-08-16 ยท 2 obs
โ 2026-08-16 14:32:36
โMXdns.itmac.jp2015-08-09 โ 2026-08-16 ยท 2 obs
โ 2026-08-16 14:32:36
โMXdns2.itmac.jp2015-08-09 โ 2026-08-16 ยท 2 obs
โ 2026-08-16 14:32:36
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | g.dns.jp, e.dns.jp, c.dns.jp, h.dns.jp... | 15 records |
| itmac.jp | dns2.itmac.jp, ns01.ipn.web.ad.jp, ns02.ipn.web.ad.jp, dns.itmac.jp | 2 records |
โ Authoritative Response
Server:218.217.251.137
NS records: dns2.itmac.jp, ns01.ipn.web.ad.jp, ns02.ipn.web.ad.jp, dns.itmac.jp
๐ DNSSEC Status
โ ๏ธ Insecure (no DNSSEC)
No DS record for itmac.jp (unsigned zone)
โฑ๏ธ Timing
Total: 703ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | dns.itmac.jp, dns2.itmac.jp... |
| MX | 2 | dns2.itmac.jp (pri: 20), dns.itmac.jp (pri: 10) |
| TXT | 1 | v=spf1 ip4:218.217.251.128/26 ~all |
| SOA | 1 | dns.itmac.jp root.itmac.jp |
๐ Glue Records Collected
Total: 17
In-bailiwick: 17 (h.dns.jp, g.dns.jp, f.dns.jp...)
Analysis
Hierarchy
www4.itmac.jp, www.itmac.jp, dns2.itmac.jp and dns.itmac.jp are all subdomains of itmac.jp.
Name Servers
itmac.jp has four authoritative name servers: dns2.itmac.jp, dns.itmac.jp, ns01.ipn.web.ad.jp and ns02.ipn.web.ad.jp.
The name servers of itmac.jp overlap at least partially with those of other domains โ among them f-intra.jp, jari.jp, webcocoon.jp and two more.
These name servers commonly appear in delegations together with outgw.fujielectric.co.jp, ns.center.web.ad.jp, ns-a.f-intra.jp and 6 other.
dns2.itmac.jp, dns.itmac.jp, ns01.ipn.web.ad.jp and ns02.ipn.web.ad.jp each resolve to one IP address: dns2.itmac.jp resolves to 218.217.251.150, dns.itmac.jp resolves to 218.217.251.137, ns01.ipn.web.ad.jp resolves to 202.248.0.70 and ns02.ipn.web.ad.jp resolves to 202.248.2.199.
Mail Servers
itmac.jp has two mail servers: dns2.itmac.jp and dns.itmac.jp.