comcast.jp - robtex.com
comcast.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | 01.dnsv.jp ⭐ | ||||||
| A | 2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc. | ||||||
| PTR | 01.dnsv.jp | ||||||
| A | 157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 01.dnsv.jp | ||||||
| NS | 02.dnsv.jp | ||||||
| A | 157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 02.dnsv.jp | ||||||
| NS | 03.dnsv.jp | ||||||
| A | 2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc. | ||||||
| PTR | 03.dnsv.jp | ||||||
| A | 157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 03.dnsv.jp | ||||||
| NS | 04.dnsv.jp | ||||||
| A | 2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc. | ||||||
| PTR | 04.dnsv.jp | ||||||
| A | 157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 04.dnsv.jp | ||||||
| MX | mail.comcast.jp ⭐ | ||||||
| A | 35.200.48.6🇯🇵 Google35.200.48.0/20 | ||||||
| PTR | 6.48.200.35.bc.googleusercontent.com | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1774259785 | ||||||
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=1776092405 | ||||||
Subdomains
mail.comcast.jp |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXmail.comcast.jp2026-04-06 → 2026-04-13 · 2 obs
● 2026-04-13 15:41:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| comcast.jp | 01.dnsv.jp, 02.dnsv.jp, 04.dnsv.jp, 03.dnsv.jp | 7 records |
✅ Authoritative Response
Server:157.7.34.53
NS records: 01.dnsv.jp, 02.dnsv.jp, 04.dnsv.jp, 03.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for comcast.jp (unsigned zone)
⏱️ Timing
Total: 830ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 1 | mail.comcast.jp (pri: 10) |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
📌 Glue Records Collected
Total: 7
Out-of-bailiwick: 7 (01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp...)
Analysis
Hierarchy
mail.comcast.jp is a child of comcast.jp.
Name Servers
comcast.jp delegates to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
comcast.jp at least partially shares name servers with other domains, including motivationcurve.com, rembrandt-hotel.jp, hotsuma-group.com, reitdb.com and cpa-okada.com.
Host names with two IPs:
01.dnsv.jp points to 2400:8500:3300::53 and 157.7.32.53
03.dnsv.jp points to 2400:8500:3000::53 and 157.7.34.53
04.dnsv.jp points to 2400:8500:3fff::53 and 157.7.35.53
Host names with one IP:
02.dnsv.jp points to 157.7.33.53
Mail Servers
A single mail server handles comcast.jp, mail.comcast.jp.
Host name mail.comcast.jp resolves to a single IP: 35.200.48.6.