ptecourse.com - dns.ninja
ptecourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 47.91.137.66🇭🇰 Alibaba-Cloud47.91.128.0/18 Alibaba Cloud | ||||||
| NS | ns1.crazydomains.com ⭐ | ||||||
| A | 2a00:fd80:aaaa:ffff::eeee:c1🇦🇪 DREAMSCAPE-AS-AP2a00:fd80:aaaa::/48 AS38719 IPv6 Anycast Prefix | ||||||
| PTR | ns1.crazydomains.com | ||||||
| A | 27.124.125.7🇦🇺 DREAMSCAPE-AS-AP27.124.125.0/24 Dreamscape Networks PTY LTD Suite 4.07 247 Coward Street | ||||||
| PTR | ns1.crazydomains.com | ||||||
| NS | ns2.crazydomains.com | ||||||
| A | 2a00:fd80:aaaa:ffff::eeee:c2🇦🇪 DREAMSCAPE-AS-AP2a00:fd80:aaaa::/48 AS38719 IPv6 Anycast Prefix | ||||||
| PTR | ns2.crazydomains.com | ||||||
| A | 27.124.125.8🇦🇺 DREAMSCAPE-AS-AP27.124.125.0/24 Dreamscape Networks PTY LTD Suite 4.07 247 Coward Street | ||||||
| PTR | ns2.crazydomains.com | ||||||
| MX | mxn.mxhichina.com ⭐ | ||||||
| A | 47.246.136.231🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud | ||||||
| PTR | cz-clare.com | ||||||
| PTR | reachsmartdwell.com | ||||||
| PTR | wevolt.tech | ||||||
| A | 47.246.137.47🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud | ||||||
| SOA | ns1.crazydomains.comadmin@syrahost.com serial=1776931846 | ||||||
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=1783999437 | ||||||
Subdomains
www.ptecourse.com |
Same first word
ptecourse.com |
Similar names
DNS History
6 records (4 active, 2 former)
●NSns1.crazydomains.com2026-02-28 → 2026-07-14 · 3 obs
● 2026-02-28 22:11:08
● 2026-07-14 03:31:28
○NSns1.dnspackage.com2016-12-24 → 2018-08-05 · 4 obs
● 2018-08-05 13:30:30
○ 2026-02-28 22:11:08
○ 2026-07-14 03:31:28
●NSns2.crazydomains.com2026-02-28 → 2026-07-14 · 3 obs
● 2026-02-28 22:11:08
● 2026-07-14 03:31:28
○NSns2.dnspackage.com2016-12-24 → 2018-08-05 · 4 obs
● 2018-08-05 13:30:30
○ 2026-02-28 22:11:08
○ 2026-07-14 03:31:28
●MXmxn.mxhichina.com2016-12-24 → 2026-07-14 · 2 obs
● 2026-07-14 03:31:28
●A47.91.137.662016-12-24 → 2026-07-14 · 2 obs
● 2026-07-14 03:31:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net... | - |
| ptecourse.com | ns1.crazydomains.com, ns2.crazydomains.com | 4 records |
✅ Authoritative Response
Server:27.124.125.7
NS records: ns1.crazydomains.com, ns2.crazydomains.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ptecourse.com (unsigned zone)
⏱️ Timing
Total: 1499ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.91.137.66 |
| NS | 2 | ns2.crazydomains.com, ns1.crazydomains.com |
| MX | 2 | mxn.mxhichina.com (pri: 5), mxn.mxhichina.com (pri: 10) |
| SOA | 1 | ns1.crazydomains.com admin.syrahost.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.crazydomains.com, ns1.crazydomains.com, ns2.crazydomains.com...)
Analysis
Hierarchy
ptecourse.com is the parent zone for www.ptecourse.com.
IP Addresses
ptecourse.com points to a single IP number: 47.91.137.66.
Name Servers
ptecourse.com is served by two delegated name servers, ns1.crazydomains.com and ns2.crazydomains.com.
ptecourse.com shares its name server setup with other domains, including yourpathinmind.com.au, scottmarsh.com.au, shbs.com.au and two others.
ptecourse.com partially shares its NS delegation with several other domains, including gtrading-jp.com, contractpacking.co.nz, xinying.com.au and two others.
In DNS configurations, these name servers often share authority with ns1.crazydomains.com.au, ns2.crazydomains.com.au, ns1.openhost.co.nz and 4 other name servers.
Each of the two host names carries two IP addresses: ns1.crazydomains.com points to 27.124.125.7 and 2a00:fd80:aaaa:ffff::eeee:c1, and ns2.crazydomains.com points to 27.124.125.8 and 2a00:fd80:aaaa:ffff::eeee:c2.
Mail Servers
ptecourse.com has one mail server: mxn.mxhichina.com.
ptecourse.com shares the same mail server setup as other domains, including 1000jiang.cn, tongbangkeji.cn, gs-blife.com and two others.
ptecourse.com shares mail servers — at least in part — with other domains, including gzkanzaki.com, chinaoptoplex.com, excel-ind.com and two others.
These mail servers are frequently paired with the mail servers mxw.mxhichina.com, mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.
The host mxn.mxhichina.com resolves to 47.246.136.231 and 47.246.137.47 — two IP addresses.