lbt.tw - robtex.com
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lbt.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.231.138.38🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC | ||||||
| NS | dns1.4cun.com ⭐ | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7🇨🇳 ALIBABA-CN-NET | ||||||
| A | 61.172.183.78🇨🇳 CHINANET-SHANGHAI-MAN | ||||||
| NS | dns.4cun.com ⚠️ Not in zone NS records | ||||||
| NS | dns2.4cun.com ⚠️ Not in zone NS records | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7🇨🇳 ALIBABA-CN-NET | ||||||
| A | 219.138.102.210🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC | ||||||
| MX | mx1.sxy.top ⭐ | ||||||
| A | 58.221.79.160🇨🇳 CHINA-TELECOM | ||||||
| A | 221.6.203.16🇨🇳 CHINA169-Backbone | ||||||
| MX | mx.sxy.top(50) | ||||||
| A | 58.221.79.160🇨🇳 CHINA-TELECOM | ||||||
| TXT | v=spf1 include:spfv.sxy.top -all | ||||||
| SOA | dns.4cun.comadmin@lbt.tw serial=1750945435 | ||||||
tw
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.tw ⭐ 🔒 | ||||||
| NS | anytld.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | b.dns.tw 🔒 | ||||||
| NS | c.dns.tw 🔒 | ||||||
| NS | d.dns.tw 🔒 | ||||||
| NS | e.dns.tw 🔒 | ||||||
| NS | f.dns.tw 🔒 | ||||||
| NS | g.dns.tw 🔒 | ||||||
| NS | h.dns.tw 🔒 | ||||||
| SOA | a.dns.twsnw@twnic.net.tw serial=2010988498 | ||||||
Same first word
Similar names
DNS History
8 records (6 active, 2 former)
●NSdns1.4cun.com2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 23:53:10
● 2026-02-18 23:53:16
●NSdns2.4cun.com2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 23:53:10
● 2026-02-18 23:53:16
○MXmail.lbt.tw2017-01-02 → 2019-03-10 · 4 obs
● 2019-03-10 11:51:00
○ 2026-02-18 23:53:10
○ 2026-02-18 23:53:16
●MXmx.sxy.top2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 23:53:10
● 2026-02-18 23:53:16
●MXmx1.sxy.top2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 23:53:10
● 2026-02-18 23:53:16
○A221.231.138.1202017-01-02 → 2019-03-10 · 4 obs
● 2019-03-10 11:51:00
○ 2026-02-18 23:53:10
○ 2026-02-18 23:53:16
●A221.231.138.382026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 23:53:10
● 2026-02-18 23:53:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | 16 records |
| lbt.tw | dns1.4cun.com, dns2.4cun.com | - |
✅ Authoritative Response
Server: 219.138.102.210
NS records: dns1.4cun.com, dns2.4cun.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lbt.tw (unsigned zone)
⏱️ Timing
Total: 3638ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.231.138.38 |
| MX | 2 | mx1.sxy.top (pri: 50), mx.sxy.top (pri: 5) |
| TXT | 1 | v=spf1 include:spfv.sxy.top -all |
| SOA | 1 | dns.4cun.com admin.lbt.tw |
📌 Glue Records Collected
Total: 16
In-bailiwick: 14 (a.dns.tw, a.dns.tw, b.dns.tw...)
Out-of-bailiwick: 2 (anytld.apnic.net, anytld.apnic.net)
AI analysis
lbt.tw points to an IP address: 221.231.138.38.
other host names include aaaky.cn, macro-nms.com, okylb.com, snpv.cn and zghxxy.com; they share IP numbers with lbt.tw.
lbt.tw is delegated to three name servers dns1.4cun.com, dns2.4cun.com and dns.4cun.com.
lbt.tw at least partially shares name servers with other domains, for instance ha-rh.com, anoksoft.com, rayhoo.net, zgjgx.com and hebeiboligang.cn.
these name servers are commonly used with dns2.51dns.top, dns3.4cun.com, dns4.51dns.top, dns7.4cun.com, dns5.4cun.com, dns6.51dns.top, dns8.51dns.top, ns3.4cun.com, ns4.4cun.com and ns1.4cun.com.
Host names with two IP numbers
dns1.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.78.
dns2.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 219.138.102.210.
Names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7: dns1.4cun.com and dns2.4cun.com.
lbt.tw is handled by two mail servers: mx1.sxy.top and mx.sxy.top.
lbt.tw uses the same mail server setup as other domains, for instance vilbrake.com, cplow.com, longehr.com, dingruiit.com and cyssco.com.
lbt.tw shares at least partially some mail servers with other domains, for instance holy-bright.com, datawhale.club, inlocalization.com, ats-drilling.com and rfflyingconnector.com.
Two IP numbers: mx1.sxy.top points to 58.221.79.160 and 221.6.203.16.
One IP number: mx.sxy.top points to 58.221.79.160.
Names pointing to 58.221.79.160: mx1.sxy.top and mx.sxy.top.