ybb-support.jp - robtex.com
ybb-support.jp
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=1775437203 | ||||||
Subdomains
relay02.ybb-support.jp |
Same first word
ybb-support.jp |
DNS History
7 records (5 active, 2 former)
●MXcluster1.us.messagelabs.com2026-02-23 → 2026-04-06 · 3 obs
● 2026-02-23 23:00:50
● 2026-04-06 01:07:42
●MXcluster1a.us.messagelabs.com2026-02-23 → 2026-04-06 · 3 obs
● 2026-02-23 23:00:50
● 2026-04-06 01:07:42
○MXmx1.sb-sys.info2015-08-12 → 2017-01-23 · 4 obs
● 2017-01-23 20:02:44
○ 2026-02-23 23:00:50
○ 2026-04-06 01:07:42
○MXmx2.sb-sys.info2015-08-12 → 2017-01-23 · 4 obs
● 2017-01-23 20:02:44
○ 2026-02-23 23:00:50
○ 2026-04-06 01:07:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, e.dns.jp, a.dns.jp, b.dns.jp... | - |
| ybb-support.jp | dns04.bbtec.net, dns03.bbtec.net, dns06.bbtec.net | - |
✅ Authoritative Response
Server:221.110.33.8
NS records: dns04.bbtec.net, dns03.bbtec.net, dns06.bbtec.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ybb-support.jp (unsigned zone)
⏱️ Timing
Total: 2509ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | dns06.bbtec.net, dns04.bbtec.net... |
| MX | 2 | cluster1a.us.messagelabs.com (pri: 20), cluster1.us.messagelabs.com (pri: 10) |
| TXT | 2 | v=spf1 +ip4:202.218.37.137 +ip4:202.218., S0O3F42506 |
| SOA | 1 | dns03.bbtec.net noc.bbtec.net |
Analysis
Hierarchy
ybb-support.jp is the parent of relay02.ybb-support.jp.
Name Servers
ybb-support.jp is delegated to three name servers dns03.bbtec.net, dns04.bbtec.net and dns06.bbtec.net.
ybb-support.jp at least partially shares name servers with other domains, for instance bbsoft.jp, emobile-s.ne.jp, stream.softbankbb.co.jp, sbb.ne.jp and emobile.jp.
Host names with one IP number: dns03.bbtec.net points to 221.110.34.4; dns04.bbtec.net points to 221.110.33.8; dns06.bbtec.net points to 221.110.33.72.
Mail Servers
Two mail servers handle ybb-support.jp: cluster1.us.messagelabs.com and cluster1a.us.messagelabs.com.
ybb-support.jp shares the same mail server setup as other domains, for instance trivergenthealth.com, computeresource.com, shigerubanarchitects.com, nikkodenki.co.jp and guthy-renker.de.
ybb-support.jp shares some mail servers with other domains, at least partially, for instance marexcargo.com, zodiac-pharma.com.tw, opentide.com.cn, innofnc.com and corporacionservir.org.
Host names with eight IP numbers: cluster1.us.messagelabs.com points to 67.219.246.208, 67.219.246.210, 67.219.247.106, 67.219.247.202, 67.219.247.204, 67.219.250.212, 67.219.250.215 and 67.219.250.218.
Host names with one IP number: cluster1a.us.messagelabs.com points to 34.75.172.113.