`internet19.softech.cz`

DNSSEC	⚠️ Not signed
A	2001:67c:2b10:100::13^{🇨🇿 AS_RVTECH2001:67c:2b10::/48 RVTech Route v6}
		PTR	`internet19.softech.cz`
A	212.11.104.13^{🇨🇿 CDT-AS212.11.96.0/19 CD-Telematika a.s. The Czech Republic}

`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=ms11636471`
	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`
	SOA	`internet.softech.cz`hostmaster@softech.cz serial=2026013516

📈 Tranco rank: #533,397

PTR for

3.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.1.b.2.c.7.6.0.1.0.0.2.ip6.arpa

13.104.11.212.in-addr.arpa

DNS History

3 records (2 active, 1 former)

●A2001:67c:2b10:100::132026-03-02 → 2026-04-24 · 3 obs

○ 2018-05-16 19:41:32
● 2026-03-02 07:30:00
● 2026-04-24 11:37:24

●A212.11.104.132026-03-02 → 2026-04-24 · 3 obs

○ 2018-05-16 19:41:32
● 2026-03-02 07:30:00
● 2026-04-24 11:37:24

○A77.104.208.132018-05-16 → 2018-05-16 · 3 obs

● 2018-05-16 19:41:32
○ 2026-03-02 07:30:00
○ 2026-04-24 11:37:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.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:212.11.104.10

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: 955ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.11.104.13`
AAAA	1	`2001:67c:2b10:100::13`

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

internet19.softech.cz points to two IP numbers: 2001:67c:2b10:100::13 and 212.11.104.13.

Other host names such as bis-as.cz, precast.cz, pgx.cz, applycon.cz and lbdplzen.cz share IP numbers with internet19.softech.cz.

internet19.softech.cz - robtex.com