bt21.com - robtex.com
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bt21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 147.92.242.218🇯🇵 nhn-AS-jp | ||||||
| NS | ns1.naver.jp ⭐ | ||||||
| A | 147.92.152.224🇯🇵 nhn-AS-jp | ||||||
| NS | ans1.linecorp.com | ||||||
| A | 147.92.247.1🇯🇵 nhn-AS-jp | ||||||
| NS | ans2.linecorp.com | ||||||
| A | 43.223.24.1🇯🇵 nhn-AS-jp | ||||||
| NS | ns2.naver.jp | ||||||
| A | 147.92.162.216🇯🇵 nhn-AS-jp | ||||||
| MX | kr1-aspmx1.worksmobile.com ⭐ | ||||||
| A | 125.209.209.251🇰🇷 nhn-AS-KR | ||||||
| PTR | crcvmail.worksmobile.com | ||||||
| MX | kr1-aspmx2.worksmobile.com(20) | ||||||
| A | 125.209.209.251🇰🇷 nhn-AS-KR | ||||||
| PTR | crcvmail.worksmobile.com | ||||||
| TXT | v=spf1 ~all | ||||||
| SOA | ns1.naver.jpdomain@linecorp.com serial=1747985066 | ||||||
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=1770239352 | ||||||
rank #174698 in the tld
Up
www.bt21.com |
Same first word
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🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| bt21.com | ns1.naver.jp, ns2.naver.jp, ans1.linecorp.com, ans2.linecorp.com | 2 records |
✅ Authoritative Response
Server: 147.92.152.224
NS records: ns1.naver.jp, ns2.naver.jp, ans1.linecorp.com, ans2.linecorp.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bt21.com (unsigned zone)
⏱️ Timing
Total: 1164ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 147.92.242.218 |
| NS | 4 | ans1.linecorp.com, ans2.linecorp.com... |
| MX | 2 | kr1-aspmx1.worksmobile.com (pri: 10), kr1-aspmx2.worksmobile.com (pri: 20) |
| TXT | 1 | v=spf1 ~all |
| SOA | 1 | ns1.naver.jp domain.linecorp.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ans1.linecorp.com, ans2.linecorp.com)
AI analysis
bt21.com is the parent of www.bt21.com.
bt21.com resolves to one IP number: 147.92.242.218.
Other host names, for instance www.bt21.com, share IP numbers with bt21.com.
bt21.com is delegated to four name servers: ans1.linecorp.com, ans2.linecorp.com, ns1.naver.jp and ns2.naver.jp.
bt21.com at least partially shares name servers with other domains, for instance line-usercontent.com, line.id, 151.104.203.in-addr.arpa, 151.92.147.in-addr.arpa and 152.92.147.in-addr.arpa.
Host names with one IP number: ans1.linecorp.com points to 147.92.247.1; ans2.linecorp.com points to 43.223.24.1; ns1.naver.jp points to 147.92.152.224; ns2.naver.jp points to 147.92.162.216.
Two mail servers handle bt21.com: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.
bt21.com shares the same mail server setup as other domains, for instance jarada.co.kr, kobot.co.kr, boundarygames.com, careerplatform.kr and bigshot-games.com.
bt21.com shares some mail servers with other domains, at least partially, for instance whosaeng.com, kvie.co.kr, ratelent.com, bg21.co.kr and ssmecha.net.
Host names with a single IP:
kr1-aspmx1.worksmobile.com points to 125.209.209.251.
kr1-aspmx2.worksmobile.com points to 125.209.209.251.
Host names pointing to 125.209.209.251: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.