`internet3.softech.cz`

DNSSEC	⚠️ Not signed
A	212.11.104.21^{🇨🇿 CDT-AS212.11.96.0/19 CD-Telematika a.s. The Czech Republic}
		PTR	`internet3.softech.cz`

`softech.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	212.11.104.8^{🇨🇿 CDT-AS212.11.96.0/19 CD-Telematika a.s. The Czech Republic}
	NS	`internet1.softech.cz` ⭐
	NS	`dns-3.softech.cz`
	NS	`dns-4.softech.cz`
	NS	`internet.softech.cz`
	MX	`antispamsmtp.softech.cz` ⭐
	MX	`backup-mx-100.softech.cz`⁽¹⁰⁰⁾
	TXT	`MS=ms36212475`
	TXT	`v=spf1 ip4:212.11.104.0/24 ip4:195.47.74.0/24 ip4:195.47.7.0/24 mx -all`
	TXT	`MS=ms11636471`
	SOA	`internet.softech.cz`hostmaster@softech.cz serial=2026013514

📈 Tranco rank: #533,397

PTR for

21.104.11.212.in-addr.arpa

Same first word

internet3.tv

internet3.it

internet3.net

internet3.fr

internet3.de

internet3.jp

Similar names

3internet.com

inter3net.com

3internet.net

tenretin3.de

DNS History

2 records (1 active, 1 former)

●A212.11.104.212026-03-22 → 2026-04-24 · 3 obs

○ 2016-04-23 09:52:22
● 2026-03-22 13:28:22
● 2026-04-24 08:44:32

○A77.104.208.212015-06-24 → 2016-04-23 · 4 obs

● 2015-06-24 15:46:10
● 2016-04-23 09:52:22
○ 2026-03-22 13:28:22
○ 2026-04-24 08:44:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
softech.cz	dns-3.softech.cz, dns-4.softech.cz, internet.softech.cz, internet1.softech.cz	4 records

✅ Authoritative Response

Server:212.11.104.27

NS records: dns-3.softech.cz, dns-4.softech.cz, internet.softech.cz, internet1.softech.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1242ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.11.104.21`

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (dns-3.softech.cz, dns-4.softech.cz, internet.softech.cz...)

Analysis

IP Addresses

internet3.softech.cz points to a single IP number: 212.11.104.21.

internet3.softech.cz - robtex.com