`o2extra.eu`

DNSSEC	⚠️ Not signed
A	160.218.161.157^{🇨🇿 O2-CZECH-REPUBLIC160.218.0.0/16 Route object of Eurotel Praha}
		PTR	`160-218-161-157.rea.o2.cz`
NS	`dns.iol.cz` ⭐
		A	2a00:1028:100:102::61^{🇨🇿 O2-CZECH-REPUBLIC2a00:1028::/32 O2 CZ}
			PTR	`dns.iol.cz`
		A	194.228.2.61^{🇨🇿 O2-CZECH-REPUBLIC194.228.0.0/17 CZ.CZNET}
			PTR	`dns.iol.cz`
NS	`ns2.tel.cz`
		A	2a00:1028:1:205::2^{🇨🇿 O2-CZECH-REPUBLIC2a00:1028::/32 O2 CZ}
			PTR	`ns2.tel.cz`
		A	194.228.2.1^{🇨🇿 O2-CZECH-REPUBLIC194.228.0.0/17 CZ.CZNET}
			PTR	`ns2.tel.cz`
SOA	`dns.iol.cz`hostmaster@iol.cz 2017-11-20 #2

`eu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`si.dns.eu` ⭐
	NS	`be.dns.eu`
	NS	`w.dns.eu`
	NS	`x.dns.eu`
	NS	`y.dns.eu`
	SOA	`si.dns.eu`tech@eurid.eu serial=1123256865

Same first word

o2extra.sk

o2extra.cz

o2extra.com

o2extra.eu

DNS History

4 records (3 active, 1 former)

●NSdns.iol.cz2015-08-07 → 2026-04-14 · 2 obs

● 2015-08-07 08:43:08
● 2026-04-14 02:01:42

●NSns2.tel.cz2015-08-07 → 2026-04-14 · 2 obs

● 2015-08-07 08:43:08
● 2026-04-14 02:01:42

●A160.218.161.1572020-02-05 → 2026-04-14 · 3 obs

○ 2017-02-16 18:49:38
● 2020-02-05 22:52:48
● 2026-04-14 02:01:42

○A160.218.161.372015-08-07 → 2017-02-16 · 4 obs

● 2015-08-07 08:43:08
● 2017-02-16 18:49:38
○ 2020-02-05 22:52:48
○ 2026-04-14 02:01:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
eu	w.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu...	-
o2extra.eu	dns.iol.cz, ns2.tel.cz	-

✅ Authoritative Response

Server:194.228.2.61

NS records: dns.iol.cz, ns2.tel.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for o2extra.eu (unsigned zone)

⏱️ Timing

Total: 960ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.218.161.157`
NS	2	`ns2.tel.cz, dns.iol.cz`
SOA	1	`dns.iol.cz hostmaster.iol.cz`

Analysis

IP Addresses

o2extra.eu points to IP number: 160.218.161.157.

Other host names such as 02extravyhody.cz, o2extrapark.com, o2extra.cz, o2extrapark.cz and o2extravyhody.com share IPs with o2extra.eu.

Name Servers

o2extra.eu is delegated to two name servers: dns.iol.cz and ns2.tel.cz.

o2extra.eu shares the same name server setup as o2hosting.cz, 1.102.88.in-addr.arpa, 122.71.85.in-addr.arpa, 236.180.90.in-addr.arpa and 45.177.90.in-addr.arpa.

o2extra.eu shares some name servers with other domains, for instance 13.84.193.in-addr.arpa.

Host names with two IP numbers: dns.iol.cz points to: 2a00:1028:100:102::61 and 194.228.2.61; ns2.tel.cz points to: 2a00:1028:1:205::2 and 194.228.2.1.

o2extra.eu - robtex.com

o2extra.eu

eu