bctedu.com - dns.ninja
bctedu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 124.172.152.137🇨🇳 NGNNET124.172.152.0/24 | ||||||
| NS | ns3.01isp.com ⭐ ⚠️ Not in zone NS records | ||||||
| A | 42.240.142.46🇨🇳 CHINANET-Guangdong-GuangZhou-IDC42.240.128.0/20 Guangzhou IDC of ChinaUnicom | ||||||
| NS | ns4.01isp.net ⚠️ Not in zone NS records | ||||||
| A | 47.239.41.106🇭🇰 Alibaba-Cloud47.239.0.0/16 Proxy-registered route object | ||||||
| NS | ns7.01isp.com ⚠️ Not in parent delegation | ||||||
| A | 42.240.142.46🇨🇳 CHINANET-Guangdong-GuangZhou-IDC42.240.128.0/20 Guangzhou IDC of ChinaUnicom | ||||||
| NS | ns8.01isp.net ⚠️ Not in parent delegation | ||||||
| A | 47.239.41.106🇭🇰 Alibaba-Cloud47.239.0.0/16 Proxy-registered route object | ||||||
| SOA | ns3.01isp.comadmin@now.cn 2026-08-06 #1 | ||||||
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=1786080039 | ||||||
Subdomains
mail.bctedu.com |
Same first word
bctedu.com |
Similar names
DNS History
9 records (5 active, 4 former)
●NSns7.01isp.com2026-06-19 → 2026-08-07 · 3 obs
● 2026-06-19 18:07:20
● 2026-08-07 05:50:06
●NSns8.01isp.net2026-06-19 → 2026-08-07 · 3 obs
● 2026-06-19 18:07:20
● 2026-08-07 05:50:06
○MXmail.bctedu.com2015-08-01 → 2017-03-28 · 4 obs
● 2017-03-28 13:04:48
○ 2026-06-19 18:07:20
○ 2026-08-07 05:50:06
○A114.215.153.2352015-11-29 → 2015-11-29 · 4 obs
● 2015-11-29 09:08:34
○ 2016-07-15 21:06:18
○ 2026-08-07 05:50:06
○A115.28.84.1972015-08-01 → 2015-08-01 · 3 obs
○ 2015-11-29 09:08:34
○ 2026-08-07 05:50:06
○A124.172.137.392016-07-15 → 2017-03-28 · 5 obs
● 2016-07-15 21:06:18
● 2017-03-28 13:04:48
○ 2026-06-19 18:07:20
○ 2026-08-07 05:50:06
●A124.172.152.1372026-06-19 → 2026-08-07 · 3 obs
● 2026-06-19 18:07:20
● 2026-08-07 05:50:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net... | - |
| bctedu.com | ns3.01isp.com, ns4.01isp.net | 1 record |
✅ Authoritative Response
Server:47.239.41.106
NS records: ns3.01isp.com, ns4.01isp.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bctedu.com (unsigned zone)
⏱️ Timing
Total: 4147ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 124.172.152.137 |
| NS | 2 | ns8.01isp.net, ns7.01isp.com |
| SOA | 1 | ns3.01isp.com admin.now.cn |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns3.01isp.com)
Analysis
Hierarchy
The domain mail.bctedu.com falls under the parent bctedu.com.
IP Addresses
bctedu.com directs to one IP number, which is 124.172.152.137.
Name Servers
The domain bctedu.com is delegated to these four name servers: ns3.01isp.com, ns7.01isp.com, ns4.01isp.net and ns8.01isp.net.
At least some of bctedu.com's name servers are shared with other domains, for example dtvalue.com, leancloud.biz, hncssm.com and two more.
These name servers tend to be used in conjunction with the name servers ns4001.01isp.net.
Each of ns3.01isp.com, ns7.01isp.com, ns4.01isp.net and ns8.01isp.net has a single IP address — ns3.01isp.com and ns7.01isp.com direct to 42.240.142.46, and ns4.01isp.net and ns8.01isp.net direct to 47.239.41.106.
The host names ns3.01isp.com and ns7.01isp.com both resolve to 42.240.142.46 IP addresses.
The host names ns4.01isp.net and ns8.01isp.net both resolve to 47.239.41.106 IP addresses.