tele2internet.cz - robtex.com
tele2internet.cz
| DNSSEC | ⚠️ Not signed | ||||||
| NS | kalmar.dns.swip.net ⭐ | ||||||
| A | 2a00:801:103:f::beef🇸🇪 SWIPNET2a00:800::/25 Tele2 IPv6 block In case of improper use originating from our network, please mail | ||||||
| PTR | kalmar.dns.swip.net | ||||||
| A | 192.71.180.46🇸🇪 SWIPNET192.71.180.0/24 SE-SWIPNET In case of improper use originating from our network, please mail customer or abuse@swip.net | ||||||
| PTR | kalmar.dns.swip.net | ||||||
| NS | falun.dns.swip.net | ||||||
| A | 2a00:801:103:8::f00d🇸🇪 SWIPNET2a00:800::/25 Tele2 IPv6 block In case of improper use originating from our network, please mail | ||||||
| PTR | falun.dns.swip.net | ||||||
| A | 192.71.220.13🇸🇪 SWIPNET192.71.220.0/24 -NICNET In case of improper use originating from our network, please mail customer or abuse@swip.net | ||||||
| PTR | falun.dns.swip.net | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | kalmar.dns.swip.nethostmaster@tele2.com 2025-11-17 #14 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1776169035 | ||||||
Same first word
DNS History
2 records (2 active, 0 former)
●NSfalun.dns.swip.net2015-05-07 → 2026-04-14 · 2 obs
● 2026-04-14 12:56:22
●NSkalmar.dns.swip.net2015-05-07 → 2026-04-14 · 2 obs
● 2026-04-14 12:56:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| tele2internet.cz | falun.dns.swip.net, kalmar.dns.swip.net | - |
✅ Authoritative Response
Server:192.71.220.13
NS records: falun.dns.swip.net, kalmar.dns.swip.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tele2internet.cz (unsigned zone)
⏱️ Timing
Total: 754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | falun.dns.swip.net, kalmar.dns.swip.net |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | kalmar.dns.swip.net hostmaster.tele2.com |
Analysis
Name Servers
tele2internet.cz is delegated to two name servers: falun.dns.swip.net and kalmar.dns.swip.net.
tele2internet.cz shares the same name server setup as 49.185.83.in-addr.arpa, 192.141.90.in-addr.arpa, 231.15.193.in-addr.arpa, 75.233.77.in-addr.arpa and 251.21.81.in-addr.arpa.
tele2internet.cz at least partially shares name servers with other domains, for instance 193.100.213.in-addr.arpa, 252.88.213.in-addr.arpa, 172.249.83.in-addr.arpa, 25.131.88.in-addr.arpa and 32.95.62.in-addr.arpa.
These name servers are commonly used alongside kista.dns.swip.net, wexio.dns.swip.net, malmoe.dns.swip.net, orebro.dns.swip.net, ystad.dns.swip.net, pitea.dns.swip.net, dns1.telia.com, sunic.sunet.se, ns1.resilans.se and ns3.resilans.se.
Host names with two IP numbers: falun.dns.swip.net points to: 2a00:801:103:8::f00d and 192.71.220.13; kalmar.dns.swip.net points to: 2a00:801:103:f::beef and 192.71.180.46.