heroedu.cn - robtex.com
heroedu.cn
| DNSSEC | ⚠️ Not signed | ||||||
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=2034588216 | ||||||
Same first word
Similar names
DNS History
9 records (0 active, 9 former)
○NSdns19.hichina.com2015-08-18 → 2017-04-04 · 4 obs
● 2015-08-18 16:04:18
● 2017-04-04 20:58:26
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
● 2017-04-04 20:58:26
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
○NSdns20.hichina.com2015-08-18 → 2017-04-04 · 4 obs
● 2015-08-18 16:04:18
● 2017-04-04 20:58:26
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
● 2017-04-04 20:58:26
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
○NSns1.nowcndns.com2026-02-27 → 2026-03-26 · 2 obs
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
○ 2026-03-26 04:32:18
○NSns2.nowcndns.com2026-02-27 → 2026-03-26 · 2 obs
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
○ 2026-03-26 04:32:18
○NSpark.i-now.cn2026-02-27 → 2026-02-27 · 4 obs
○ 2017-04-04 20:58:26
● 2026-02-27 00:23:42
○ 2026-03-26 04:32:14
○ 2026-03-26 04:32:18
● 2026-02-27 00:23:42
○ 2026-03-26 04:32:14
○ 2026-03-26 04:32:18
○NSpark.i-now.com2026-02-27 → 2026-02-27 · 4 obs
○ 2017-04-04 20:58:26
● 2026-02-27 00:23:42
○ 2026-03-26 04:32:14
○ 2026-03-26 04:32:18
● 2026-02-27 00:23:42
○ 2026-03-26 04:32:14
○ 2026-03-26 04:32:18
○A108.186.0.1792026-02-27 → 2026-03-26 · 2 obs
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
○ 2026-03-26 04:32:18
○A223.6.93.1222015-08-18 → 2017-04-04 · 4 obs
● 2015-08-18 16:04:18
● 2017-04-04 20:58:26
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
● 2017-04-04 20:58:26
○ 2026-02-27 00:23:42
○ 2026-03-26 04:32:18
○A47.90.164.2462026-02-27 → 2026-02-27 · 4 obs
○ 2017-04-04 20:58:26
● 2026-02-27 00:23:42
○ 2026-03-26 04:32:14
○ 2026-03-26 04:32:18
● 2026-02-27 00:23:42
○ 2026-03-26 04:32:14
○ 2026-03-26 04:32:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.25.1
NS records: a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3662ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|