certifiedu.de - robtex.com
certifiedu.de
| DNSSEC | ⚠️ Not signed | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1784821566 | ||||||
Subdomains
Same first word
certifiedu.de |
DNS History
6 records (0 active, 6 former)
○NSclayton.ns.cloudflare.com2026-06-01 → 2026-06-10 · 3 obs
● 2026-06-01 22:55:44
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
○NSkeyla.ns.cloudflare.com2026-06-01 → 2026-06-10 · 3 obs
● 2026-06-01 22:55:44
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
○A104.21.16.182026-06-01 → 2026-06-10 · 3 obs
● 2026-06-01 22:55:44
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
○A172.67.209.2182026-06-01 → 2026-06-10 · 3 obs
● 2026-06-01 22:55:44
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
○A2606:4700:3035::ac43:d1da2026-06-01 → 2026-06-10 · 3 obs
● 2026-06-01 22:55:44
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
○A2606:4700:3037::6815:10122026-06-01 → 2026-06-10 · 3 obs
● 2026-06-01 22:55:44
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
● 2026-06-10 06:42:20
○ 2026-07-23 15:51:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
✅ Authoritative Response
Server:194.0.0.53
NS records: a.nic.de, f.nic.de, z.nic.de
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 751ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|