btctw.com - robtex.com
btctw.com
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=1774841732 | ||||||
Subdomains
www.btctw.com |
Same first word
btctw.com |
Similar names
DNS History
12 records (7 active, 5 former)
●NSns1.ix1000.com2017-01-11 → 2026-03-30 · 2 obs
● 2026-03-30 04:00:58
●NSns2.ix1000.com2017-01-11 → 2026-03-30 · 2 obs
● 2026-03-30 04:00:58
●NSns3.ix1000.com2026-03-14 → 2026-03-30 · 3 obs
● 2026-03-14 21:43:14
● 2026-03-30 04:00:58
●NSns4.ix1000.com2026-03-14 → 2026-03-30 · 3 obs
● 2026-03-14 21:43:14
● 2026-03-30 04:00:58
○MXaspmx.l.google.com2018-10-21 → 2018-10-21 · 3 obs
○ 2026-03-14 21:43:14
○ 2026-03-30 04:00:58
●MXmx1.improvmx.com2026-03-14 → 2026-03-30 · 3 obs
● 2026-03-14 21:43:14
● 2026-03-30 04:00:58
●MXmx2.improvmx.com2026-03-14 → 2026-03-30 · 3 obs
● 2026-03-14 21:43:14
● 2026-03-30 04:00:58
○A116.251.96.882015-05-19 → 2015-05-19 · 3 obs
○ 2015-10-11 20:18:00
○ 2026-03-30 04:00:58
○A128.199.121.222017-01-11 → 2017-01-11 · 4 obs
● 2017-01-11 03:26:26
○ 2018-10-21 01:21:26
○ 2026-03-30 04:00:58
●A159.223.32.2512026-03-14 → 2026-03-30 · 3 obs
● 2026-03-14 21:43:14
● 2026-03-30 04:00:58
○A159.89.194.1602018-10-21 → 2018-10-21 · 4 obs
● 2018-10-21 01:21:26
○ 2026-03-14 21:43:14
○ 2026-03-30 04:00:58
○A74.82.63.2292016-02-03 → 2016-04-22 · 5 obs
● 2016-02-03 01:46:46
● 2016-04-22 01:07:02
○ 2017-01-11 03:26:26
○ 2026-03-30 04:00:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| btctw.com | ns1.ix1000.com, ns2.ix1000.com, ns3.ix1000.com, ns4.ix1000.com | 4 records |
✅ Authoritative Response
Server:61.56.223.221
NS records: ns1.ix1000.com, ns2.ix1000.com, ns3.ix1000.com, ns4.ix1000.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for btctw.com (unsigned zone)
⏱️ Timing
Total: 532ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 159.223.32.251 |
| NS | 4 | ns2.ix1000.com, ns4.ix1000.com... |
| MX | 2 | mx2.improvmx.com (pri: 20), mx1.improvmx.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.improvmx.com ~all |
| SOA | 1 | ns1.ix1000.com hostmaster.btctw.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.ix1000.com, ns2.ix1000.com, ns3.ix1000.com...)
Analysis
Hierarchy
btctw.com is a parent of www.btctw.com.
IP Addresses
btctw.com points to a single IP number: 159.223.32.251.
Name Servers
btctw.com is delegated to four name servers: ns1.ix1000.com, ns2.ix1000.com, ns3.ix1000.com and ns4.ix1000.com.
btctw.com at least partially shares name servers with other domains, for instance xn--jzuq07e.tw, geotrust.com.tw, 96.198.31.61.in-addr.arpa, mobileweb.tw and farmerbank.com.tw.
These name servers are commonly used with ns1.wt550.com and ns2.wt550.com.
Host names with a single IP address
ns1.ix1000.com points to 219.84.160.181
ns2.ix1000.com points to 219.84.160.182
ns3.ix1000.com points to 61.56.223.220
ns4.ix1000.com points to 61.56.223.221
Mail Servers
btctw.com is handled by two mail servers: mx1.improvmx.com and mx2.improvmx.com.
btctw.com uses the same mail server configuration as other domains, such as poliedron.com, derose.app, fritscf.sbs, getify.com and pay2.email.
btctw.com shares at least some mail servers with other domains, for instance indexguard.io, sapfever.com, deutsch-russisch-karlsruhe.de and creativemaster.com.
Host names with six IP numbers: mx1.improvmx.com points to: 2a05:d012:412:e201:88aa:e7b9:7a43:12d7, 2a05:d012:412:e202:f36:2c1f:1a49:d38a, 2a05:d012:412:e203:373a:f51a:4a85:1d25, 13.37.195.136, 15.236.236.160 and 35.181.18.45. mx2.improvmx.com points to: 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678, 2a05:d012:412:e202:e81e:cc44:3b53:8a3d, 2a05:d012:412:e203:7e33:3d9c:28d7:ee20, 13.36.107.63, 13.36.222.39 and 15.236.61.92.