code4school.net - dns.ninja
code4school.net
| DNSSEC | ⚠️ Not signed | ||||||
| NS | shades10.rzone.de ⭐ | ||||||
| A | 2607:f1c0:fe:53:185:132:34:137IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| A | 185.132.34.137IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| NS | docks01.rzone.de | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:1IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| A | 217.160.80.128IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| SOA | shades10.rzone.dehostmaster@strato-rz.de 2020-11-01 #30 | ||||||
net
| 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=1794028536 | ||||||
Same first word
code4school.org |
code4school.net |
code4school.com |
code4school.ch |
Previous names
Next names
DNS History
7 records (2 active, 5 former)
●NSdocks01.rzone.de2026-10-06 → 2026-11-07 · 3 obs
● 2026-10-06 15:11:08
● 2026-11-07 05:44:54
○NSns03.domaincontrol.com2017-01-04 → 2017-01-04 · 3 obs
○ 2019-12-21 04:52:24
○ 2026-11-07 05:44:54
○NSns04.domaincontrol.com2017-01-04 → 2017-01-04 · 3 obs
○ 2019-12-21 04:52:24
○ 2026-11-07 05:44:54
●NSshades10.rzone.de2026-10-06 → 2026-11-07 · 3 obs
● 2026-10-06 15:11:08
● 2026-11-07 05:44:54
○MXmailstore1.secureserver.net2017-01-04 → 2017-01-04 · 3 obs
○ 2019-12-21 04:52:24
○ 2026-11-07 05:44:54
○MXsmtp.secureserver.net2017-01-04 → 2017-01-04 · 3 obs
○ 2019-12-21 04:52:24
○ 2026-11-07 05:44:54
○A50.63.202.372017-01-04 → 2017-01-04 · 3 obs
○ 2019-12-21 04:52:24
○ 2026-11-07 05:44:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | j.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net... | - |
| code4school.net | docks01.rzone.de, shades10.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.128
NS records: docks01.rzone.de, shades10.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 943ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | docks01.rzone.de, shades10.rzone.de |
| SOA | 1 | shades10.rzone.de hostmaster.strato-rz.d |
Analysis
Name Servers
code4school.net has two authoritative name servers — docks01.rzone.de and shades10.rzone.de.
code4school.net shares the same name server setup with other domains, for instance cycle-generation.com, blauclean.net, wassertrinken.eu and two other.
code4school.net at least partially shares name servers with other domains, for instance kordilis.de, lnservices.de, schwertlerhaus.de and two other.
These name servers are often used together with the name servers shades08.rzone.de, docks12.rzone.de, shades05.rzone.de and 7 other.
Both docks01.rzone.de and shades10.rzone.de have two IP addresses each. docks01.rzone.de resolves to 217.160.80.128 and 2001:8d8:fe:53:5747:2a74:d:1; shades10.rzone.de resolves to 185.132.34.137 and 2607:f1c0:fe:53:185:132:34:137.