mentor.cn - robtex.com
mentor.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.siteground.net ⚠️ Not in zone NS records | ||||||
| A | 75.2.77.104🇺🇸 Amazon75.2.64.0/20 | ||||||
| PTR | ac4b097dbd0dd6307.awsglobalaccelerator.com | ||||||
| NS | ns2.siteground.net ⚠️ Not in zone NS records | ||||||
| A | 99.83.229.113🇺🇸 Amazon99.83.224.0/20 | ||||||
| PTR | ac4b097dbd0dd6307.awsglobalaccelerator.com | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034593525 | ||||||
Same first word
Similar names
DNS History
8 records (2 active, 6 former)
○NSdns23.hichina.com2019-01-07 → 2021-09-11 · 4 obs
● 2019-01-07 01:24:04
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
○NSdns24.hichina.com2019-01-07 → 2021-09-11 · 4 obs
● 2019-01-07 01:24:04
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
●NSns1.siteground.net2026-03-27 → 2026-03-27 · 3 obs
○ 2021-09-11 06:42:58
● 2026-03-27 04:12:32
● 2026-03-27 12:04:46
● 2026-03-27 04:12:32
● 2026-03-27 12:04:46
●NSns2.siteground.net2026-03-27 → 2026-03-27 · 3 obs
○ 2021-09-11 06:42:58
● 2026-03-27 04:12:32
● 2026-03-27 12:04:46
● 2026-03-27 04:12:32
● 2026-03-27 12:04:46
○MXmx1.qiye.aliyun.com2019-01-07 → 2021-09-11 · 4 obs
● 2019-01-07 01:24:04
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
○MXmx2.qiye.aliyun.com2019-01-07 → 2021-09-11 · 4 obs
● 2019-01-07 01:24:04
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
○MXmx3.qiye.aliyun.com2019-01-07 → 2021-09-11 · 4 obs
● 2019-01-07 01:24:04
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
○A47.104.209.2442019-01-07 → 2021-09-11 · 4 obs
● 2019-01-07 01:24:04
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
● 2021-09-11 06:42:58
○ 2026-03-27 04:12:32
○ 2026-03-27 12:04:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, d.dns.cn, a.dns.cn, e.dns.cn... | - |
| mentor.cn | ns1.siteground.net, ns2.siteground.net | - |
✅ Authoritative Response
Server:75.2.77.104
NS records: ns1.siteground.net, ns2.siteground.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mentor.cn (unsigned zone)
⏱️ Timing
Total: 425ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
mentor.cn is delegated to two name servers: ns1.siteground.net and ns2.siteground.net.
mentor.cn uses the same name server setup as other domains, for instance bolepin.com, outreachcare.co.uk, dijetaizdravlje.com, afarmhousereborn.com and johnbdavison.com.
mentor.cn shares name servers with other domains at least partially, for instance azurepacific.com.au, iamgon.com, techblogwriter.co.uk, dilmunia.com and craigvalentine.com.
Host names with one IP number:
ns1.siteground.net points to: 75.2.77.104.
ns2.siteground.net points to: 99.83.229.113.