btechchina.com - robtex.com
btechchina.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a00:c760:80:d07:2011:ffff:b921:3411🇭🇺 SERVERGARDEN-AS2a00:c760::/32 Dotroll | ||||||
| PTR | parkpage.dotroll.com | ||||||
| A | 185.33.52.19🇭🇺 SERVERGARDEN-AS185.33.52.0/22 Servergarden | ||||||
| NS | ns1.dotroll.com ⭐ | ||||||
| A | 2a00:c760:80:d07:2011:ffff:b921:3401🇭🇺 SERVERGARDEN-AS2a00:c760::/32 Dotroll | ||||||
| PTR | ns1.dotroll.com | ||||||
| A | 185.33.52.1🇭🇺 SERVERGARDEN-AS185.33.52.0/22 Servergarden | ||||||
| PTR | ns1.dotroll.com | ||||||
| NS | ns2.dotroll.com | ||||||
| A | 2a14:6940:800:d07:2011:ffff:0:1MAGYAR-TELEKOM-MAIN-AS2a14:6940::/32 Magyar Telekom | ||||||
| PTR | ns2-lb.dotroll.com | ||||||
| A | 185.224.44.1🇭🇺 MAGYAR-TELEKOM-MAIN-AS185.224.44.0/23 MICROWARE HUNGARY KFT. | ||||||
| PTR | ns2.dotroll.com | ||||||
| MX | mx.dotroll.com ⭐ | ||||||
| A | 185.33.52.29🇭🇺 SERVERGARDEN-AS185.33.52.0/22 Servergarden | ||||||
| PTR | mx.dotroll.com | ||||||
| SOA | ns1.dotroll.comhostmaster@dotroll.com 2026-02-12 #4 | ||||||
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=1776253652 | ||||||
Subdomains
mail.btechchina.com |
Same first word
btechchina.com |
DNS History
10 records (5 active, 5 former)
●NSns1.dotroll.com2016-01-18 → 2026-04-15 · 6 obs
● 2016-04-16 11:08:40
○ 2016-11-19 20:43:42
○ 2017-09-15 19:38:32
● 2026-03-07 13:40:22
● 2026-04-15 11:48:30
●NSns2.dotroll.com2016-01-18 → 2026-04-15 · 6 obs
● 2016-04-16 11:08:40
○ 2016-11-19 20:43:42
○ 2017-09-15 19:38:32
● 2026-03-07 13:40:22
● 2026-04-15 11:48:30
○NSns2.zerotco.com2016-11-19 → 2017-09-15 · 5 obs
● 2016-11-19 20:43:42
● 2017-09-15 19:38:32
○ 2026-03-07 13:40:22
○ 2026-04-15 11:48:30
○NSplesk2.zerotco.com2016-11-19 → 2017-09-15 · 5 obs
● 2016-11-19 20:43:42
● 2017-09-15 19:38:32
○ 2026-03-07 13:40:22
○ 2026-04-15 11:48:30
○MXmail.btechchina.com2016-11-19 → 2017-09-15 · 5 obs
● 2016-11-19 20:43:42
● 2017-09-15 19:38:32
○ 2026-03-07 13:40:22
○ 2026-04-15 11:48:30
●MXmx.dotroll.com2016-01-18 → 2026-04-15 · 6 obs
● 2016-04-16 11:08:40
○ 2016-11-19 20:43:42
○ 2017-09-15 19:38:32
● 2026-03-07 13:40:22
● 2026-04-15 11:48:30
●A185.33.52.192016-04-16 → 2026-04-15 · 6 obs
● 2016-04-16 11:08:40
○ 2016-11-19 20:43:42
○ 2017-09-15 19:38:32
● 2026-03-07 13:40:22
● 2026-04-15 11:48:30
●A2a00:c760:80:d07:2011:ffff:b921:34112016-04-16 → 2026-04-15 · 6 obs
● 2016-04-16 11:08:40
○ 2016-11-19 20:43:42
○ 2017-09-15 19:38:32
● 2026-03-07 13:40:22
● 2026-04-15 11:48:30
○A80.64.65.312016-11-19 → 2017-09-15 · 5 obs
● 2016-11-19 20:43:42
● 2017-09-15 19:38:32
○ 2026-03-07 13:40:22
○ 2026-04-15 11:48:30
○A80.77.120.472016-01-18 → 2016-01-18 · 3 obs
○ 2016-04-16 11:08:40
○ 2026-04-15 11:48:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net... | - |
| btechchina.com | ns1.dotroll.com, ns2.dotroll.com | 4 records |
✅ Authoritative Response
Server:185.224.44.1
NS records: ns1.dotroll.com, ns2.dotroll.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for btechchina.com (unsigned zone)
⏱️ Timing
Total: 332ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.33.52.19 |
| AAAA | 1 | 2a00:c760:80:d07:2011:ffff:b921:3411 |
| NS | 2 | ns2.dotroll.com, ns1.dotroll.com |
| MX | 1 | mx.dotroll.com (pri: 10) |
| SOA | 1 | ns1.dotroll.com hostmaster.dotroll.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.dotroll.com, ns1.dotroll.com, ns2.dotroll.com...)
Analysis
Hierarchy
btechchina.com is the parent of mail.btechchina.com.
IP Addresses
btechchina.com resolves to two IP numbers: 2a00:c760:80:d07:2011:ffff:b921:3411 and 185.33.52.19.
Other host names, for instance mx.cloud-train.com, eszterforcee.com, www.eron.hu, miafas.com and maszas.hu share IP numbers with btechchina.com.
Name Servers
btechchina.com has two name servers: ns1.dotroll.com and ns2.dotroll.com.
btechchina.com shares the same name server setup as other domains, for example 7777.hu, csupi.hu, cseperedo-pecs.hu, rtlventures.com and extremedigital.hu.
btechchina.com shares some name servers with other domains, for instance cyberbird.hu, fantasyport.extra.hu and energocert.eu.
Host names with two IP numbers:
ns1.dotroll.com points to: 2a00:c760:80:d07:2011:ffff:b921:3401 and 185.33.52.1; ns2.dotroll.com points to: 2a14:6940:800:d07:2011:ffff:0:1 and 185.224.44.1.
Mail Servers
btechchina.com is handled by a single mail server, mx.dotroll.com.
btechchina.com shares the mail server setup with other domains, for example vinopedia.hu, petrabutordiszkontok.hu, budapestates.com, bakonyvolan.hu and comfy.hu.
btechchina.com shares some mail servers with other domains at least partially, for instance casemate.hu and zc.hu.
Host name mx.dotroll.com points to IP 185.33.52.29.