sfilter.sjbolt.com - robtex.com
sfilter.sjbolt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 211.40.221.190🇰🇷 DACOM-NET211.40.0.0/16 contact noc@bora.net if necessary | ||||||
| PTR | spam.mailwood.com | ||||||
sjbolt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 165.140.20.177🇺🇸 HANARIN-AS165.140.20.0/22 HANARIN | ||||||
| NS | dns1.maxion.co.kr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | dns2.maxion.co.kr ⚠️ Not in parent delegation | ||||||
| NS | ns1.hosting.co.kr | ||||||
| NS | ns2.hosting.co.kr | ||||||
| NS | ns3.hosting.co.kr | ||||||
| NS | ns4.hosting.co.kr | ||||||
| MX | sfilter.sjbolt.com ⭐ | ||||||
| SOA | dns1.maxion.co.kradmin@sjbolt.com serial=32 | ||||||
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A211.40.221.1902015-06-04 → 2026-04-25 · 5 obs
● 2015-06-04 02:26:06
● 2026-03-09 21:11:50
○ 2026-03-17 16:30:20
● 2026-04-25 13:43:04
● 2026-04-25 18:56:06
● 2026-03-09 21:11:50
○ 2026-03-17 16:30:20
● 2026-04-25 13:43:04
● 2026-04-25 18:56:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sjbolt.com | ns2.hosting.co.kr, ns1.hosting.co.kr, ns3.hosting.co.kr, ns4.hosting.co.kr | - |
✅ Authoritative Response
Server:43.201.141.93
NS records: ns2.hosting.co.kr, ns1.hosting.co.kr, ns3.hosting.co.kr, ns4.hosting.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sjbolt.com (unsigned zone)
⏱️ Timing
Total: 1090ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.40.221.190 |
Analysis
Mail Server Role
sfilter.sjbolt.com is the mail server for sjbolt.com.
IP Addresses
sfilter.sjbolt.com resolves to one IP number: 211.40.221.190.
other host names including sfilter.ysq.co.kr, sfilter.boowon.co.kr, sfilter.seoulfnf.com, sfilter.3ic.co.kr and sfilter.ajmax.co.kr share IP numbers with sfilter.sjbolt.com.