iscool.de - dns.ninja
iscool.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2.56.232.101🇺🇸 TELEFLASH-AS2.56.232.0/23 | ||||||
| PTR | ns1.teleflash.com | ||||||
| NS | dns1.teleflash.net ⭐ | ||||||
| A | 5.181.162.4🇮🇶 TELEFLASH-AS5.181.162.0/24 | ||||||
| PTR | dns1.teleflash.net | ||||||
| NS | dns2.teleflash.net | ||||||
| A | 5.181.163.4🇮🇶 TELEFLASH-AS5.181.163.0/24 | ||||||
| PTR | dns2.teleflash.net | ||||||
| NS | dns3.teleflash.net | ||||||
| A | 142.132.137.18🇩🇪 Hetzner142.132.128.0/17 HETZNER-DC | ||||||
| PTR | a4d.pluto.hosts.linefinity.com | ||||||
| MX | mail.iscool.de ⭐ | ||||||
| TXT | v=spf1 a mx include:serviceway.de ~all | ||||||
| SOA | dns1.teleflash.nethostmaster@teleflash.com 2019-07-06 #1 | ||||||
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=1784116401 | ||||||
Same first word
iscool.cz |
iscool.pl |
iscool.net |
iscool.info |
iscool.ws |
iscool.gr |
iscool.nl |
iscool.app |
iscool.cn |
iscool.com.br |
iscool.co.il |
iscool.co |
iscool.com |
iscool.fr |
iscool.be |
iscool.co.uk |
iscool.de |
iscool.eu |
Similar names
DNS History
7 records (5 active, 2 former)
○NSdns1.epag.net2015-11-14 → 2017-01-09 · 4 obs
● 2017-01-09 02:14:50
○ 2026-03-26 02:37:24
○ 2026-07-15 12:05:04
●NSdns1.teleflash.net2026-03-26 → 2026-07-15 · 3 obs
● 2026-03-26 02:37:24
● 2026-07-15 12:05:04
○NSdns2.epag.net2015-11-14 → 2017-01-09 · 4 obs
● 2017-01-09 02:14:50
○ 2026-03-26 02:37:24
○ 2026-07-15 12:05:04
●NSdns2.teleflash.net2026-03-26 → 2026-07-15 · 3 obs
● 2026-03-26 02:37:24
● 2026-07-15 12:05:04
●NSdns3.teleflash.net2026-03-26 → 2026-07-15 · 3 obs
● 2026-03-26 02:37:24
● 2026-07-15 12:05:04
●MXmail.iscool.de2026-03-26 → 2026-07-15 · 2 obs
● 2026-07-15 12:05:04
●A2.56.232.1012026-03-26 → 2026-07-15 · 2 obs
● 2026-07-15 12:05:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| iscool.de | dns3.teleflash.net, dns2.teleflash.net, dns1.teleflash.net | - |
✅ Authoritative Response
Server:142.132.137.18
NS records: dns3.teleflash.net, dns2.teleflash.net, dns1.teleflash.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for iscool.de (unsigned zone)
⏱️ Timing
Total: 1985ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 2.56.232.101 |
| NS | 3 | dns1.teleflash.net, dns2.teleflash.net... |
| MX | 1 | mail.iscool.de (pri: 10) |
| TXT | 1 | v=spf1 a mx include:serviceway.de ~all |
| SOA | 1 | dns1.teleflash.net hostmaster.teleflash. |
Analysis
IP Addresses
iscool.de points to a single IP number: 2.56.232.101.
Additional host names — mail.hostdiscount.de, mail.net4free.de, mail.you-call-us.eu and two others — share IP numbers with iscool.de.
Name Servers
The authoritative name servers for iscool.de are dns1.teleflash.net, dns2.teleflash.net and dns3.teleflash.net — three in total.
The name servers of iscool.de overlap at least partially with those of other domains — among them speicherplatz.info, teleflash.de, 232.56.2.in-addr.arpa and two more.
The hostnames dns1.teleflash.net, dns2.teleflash.net and dns3.teleflash.net each resolve to a single IP: dns1.teleflash.net → 5.181.162.4, dns2.teleflash.net → 5.181.163.4, dns3.teleflash.net → 142.132.137.18.