swg-proxy.itcom21.com - dns.ninja
swg-proxy.itcom21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 118.151.185.82🇯🇵 IIJ-AS118.151.128.0/18 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | swg-proxy.itcom21.com | ||||||
| NS | dns-b.iij.ad.jp ⭐ | ||||||
| A | 2001:240:bb81::28:51🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 ) | ||||||
| PTR | s020.d-53.biz | ||||||
| A | 202.32.219.51🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | s020.d-53.biz | ||||||
| NS | dns0.iij-swg.jp | ||||||
| A | 2001:240:bb81::28:53🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 ) | ||||||
| PTR | s102.d-53.biz | ||||||
| A | 202.32.219.53🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | s102.d-53.biz | ||||||
| NS | dns1.iij-swg.jp | ||||||
| A | 2001:240:bb81::29:113🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 ) | ||||||
| PTR | s102.d-53.net | ||||||
| A | 210.138.20.113🇯🇵 IIJ-AS210.138.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | s102.d-53.net | ||||||
| MX | bh0.iij.ad.jp ⭐ | ||||||
| A | 202.32.78.22🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| SOA | dns-b.iij.ad.jpdns-managers@iij.ad.jp serial=1636534009 | ||||||
itcom21.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns000.d-53.net ⭐ | ||||||
| NS | ns017-p3f9sk5npcu30u1r.p.d-53.info | ||||||
| NS | ns017-p3f9sk5npcu30u1r.p.d-53.jp | ||||||
| NS | ns017-p3f9sk5npcu30u1r.p.d-53.org | ||||||
| MX | mx.securemx.jp ⭐ | ||||||
| TXT | v=spf1 include:spf.securemx.jp include:_spf.google.com ~all | ||||||
| TXT | google-site-verification=Mebx_P2kb8P0FBWk_VXUlLAROIPi3qpzJbNmWVQg6ro | ||||||
| SOA | ns000.d-53.netdns-managers@iij.ad.jp serial=370 | ||||||
PTR for
DNS History
6 records (5 active, 1 former)
○NSdns-c.iij.ad.jp2015-06-11 → 2016-04-02 · 4 obs
● 2016-04-02 13:30:32
○ 2026-03-30 10:27:22
○ 2026-07-24 02:36:14
●NSdns0.iij-swg.jp2026-03-30 → 2026-07-24 · 3 obs
● 2026-03-30 10:27:22
● 2026-07-24 02:36:14
●NSdns1.iij-swg.jp2026-03-30 → 2026-07-24 · 3 obs
● 2026-03-30 10:27:22
● 2026-07-24 02:36:14
●A118.151.185.822015-06-11 → 2026-07-24 · 2 obs
● 2026-07-24 02:36:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| itcom21.com | ns017-p3f9sk5npcu30u1r.p.d-53.info, ns017-p3f9sk5npcu30u1r.p.d-53.jp, ns017-p3f9sk5npcu30u1r.p.d-53.org | - |
| swg-proxy.itcom21.com | dns1.iij-swg.jp, dns0.iij-swg.jp | - |
✅ Authoritative Response
Server:210.138.20.113
NS records: dns1.iij-swg.jp, dns0.iij-swg.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for swg-proxy.itcom21.com (unsigned zone)
⏱️ Timing
Total: 1790ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 118.151.185.82 |
| NS | 2 | dns1.iij-swg.jp, dns0.iij-swg.jp |
| MX | 1 | bh0.iij.ad.jp (pri: 10) |
| SOA | 1 | dns-b.iij.ad.jp dns-managers.iij.ad.jp |
Analysis
IP Addresses
swg-proxy.itcom21.com has exactly one IP address — 118.151.185.82.
Name Servers
swg-proxy.itcom21.com carries NS records delegating to dns0.iij-swg.jp, dns1.iij-swg.jp and dns-b.iij.ad.jp.
swg-proxy.itcom21.com shares at least some of its name servers with other domains, including nlt-technologies.co.jp, 149.238.202.in-addr.arpa, 92.138.210.bf.2iij.net and two others.
These name servers are frequently seen alongside ns000.d-53.net, dns-c.iij.ad.jp, rev.iij-dns.jp and 3 other name servers.
dns0.iij-swg.jp, dns1.iij-swg.jp and dns-b.iij.ad.jp are three hostnames that each resolve to a pair of IP addresses: dns0.iij-swg.jp to 202.32.219.53 and 2001:240:bb81::28:53, dns1.iij-swg.jp to 210.138.20.113 and 2001:240:bb81::29:113, and dns-b.iij.ad.jp to 202.32.219.51 and 2001:240:bb81::28:51.
Mail Servers
swg-proxy.itcom21.com uses one mail server — bh0.iij.ad.jp.
The mail server setup of swg-proxy.itcom21.com matches that of other domains such as 58.54.30.125.dy.iij4u.or.jp, 183.54.138.58.dy.bbexcite.jp, 36.173.151.118.rev.iijgio.jp and two others.
bh0.iij.ad.jp carries a single IP number, which is 202.32.78.22.