`mx5.syntax.cz`

CNAME	`syntax.cz`
DNSSEC	🔒 Signed (DS record present)
A	89.221.213.11^{🇨🇿 WEDOS89.221.208.0/20 Internet, a.s.}
		PTR	`hc1-wd1.wedos.net`
NS	`ns2.gransy.com` ⭐
		A	2001:19f0:6801:474:5400:1ff:fec5:8efb^{🇫🇷 AS-VULTR2001:19f0:6800::/38 Vultr Assigned Prefix}
		A	2001:19f0:7401:81e0:5400:1ff:fec5:8ef6^{🇬🇧 AS-VULTR2001:19f0:7400::/38 Vultr Assigned Prefix}
		A	95.179.192.121^{🇬🇧 AS-VULTR95.179.192.0/20 Vultr Assigned Prefix}
			PTR	`95.179.192.121.vultrusercontent.com`
		A	217.16.185.221^{🇨🇿 VSHOSTING217.16.176.0/20 III.}
			PTR	`ns2.gransy.com`
		A	217.69.4.49^{🇫🇷 AS-VULTR217.69.0.0/20 Vultr Assigned Prefix}
			PTR	`217.69.4.49.vultrusercontent.com`
NS	`ns.gransy.com`
		A	2001:19f0:5001:1caf:5400:1ff:fec5:8d50^{🇳🇱 AS-VULTR2001:19f0:5000::/38 Vultr Assigned Prefix}
		A	45.76.90.43^{🇩🇪 AS-VULTR45.76.80.0/20 Vultr Assigned Prefix}
			PTR	`45.76.90.43.vultrusercontent.com`
		A	77.78.104.149^{🇨🇿 CASABLANCA-AS77.78.96.0/20 Casablanca INT}
			PTR	`ns.gransy.com`
		A	95.179.136.180^{🇳🇱 AS-VULTR95.179.128.0/20 Vultr Assigned Prefix}
			PTR	`95.179.136.180.vultrusercontent.com`
NS	`ns3.gransy.com`
		A	2a02:750:7::2e7^{🇸🇪 GLESYS2a02:750::/29}
			PTR	`2a02-750-7--2e7-static.glesys.net`
		A	2a02:750:8::32^{🇳🇱 GLESYS2a02:750:8::/48 GleSYS AB}
			PTR	`2a02-750-8--32-static.glesys.net`
		A	46.21.100.103^{🇳🇱 GLESYS46.21.100.0/24 GleSYS AB}
			PTR	`46-21-100-103-static.glesys.net`
		A	77.78.126.35^{🇨🇿 CASABLANCA-AS77.78.124.0/22 Casablanca INT}
		A	109.74.7.71^{🇸🇪 GLESYS109.74.0.0/20}
			PTR	`109-74-7-71-static.glesys.net`
NS	`ns4.gransy.com`
		A	2001:19f0:5401:69b:5400:1ff:fec5:8f3f^{🇺🇸 AS-VULTR2001:19f0:5400::/38 Vultr Assigned Prefix}
		A	2a00:1a28:2010:1::89^{🇳🇴 GLESYS2a00:1a28::/32 Portlane Network}
			PTR	`2a00-1a28-2010-1--89-static.glesys.net`
		A	66.42.94.136^{🇺🇸 AS-VULTR66.42.80.0/20 Vultr Assigned Prefix}
			PTR	`66.42.94.136.vultrusercontent.com`
		A	80.67.7.209^{🇳🇴 GLESYS80.67.0.0/20 Glesys Network}
			PTR	`80-67-7-209-static.glesys.net`
NS	`ns5.gransy.com`
		A	2a02:750:5::538^{🇸🇪 GLESYS2a02:750::/29}
			PTR	`2a02-750-5--538-static.glesys.net`
		A	31.192.227.223^{🇸🇪 GLESYS31.192.224.0/21}
			PTR	`31-192-227-223-static.glesys.net`
MX	`mail.syntax.cz` ⭐
		A	82.208.29.194^{🇨🇿 CASABLANCA-AS82.208.28.0/23 Casablanca INT}
			PTR	`mail.gransy.cz`
TXT	`v=spf1 a mx include:gransy.com`
SOA	`ns.gransy.com`root@gransy.com serial=2783511413

`syntax.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	89.221.213.11^{🇨🇿 WEDOS89.221.208.0/20 Internet, a.s.}
	NS	`ns2.gransy.com` ⭐
	NS	`ns.gransy.com`
	NS	`ns3.gransy.com`
	NS	`ns4.gransy.com`
	NS	`ns5.gransy.com`
	MX	`mail.syntax.cz` ⭐
	TXT	`v=spf1 a mx include:gransy.com`
	SOA	`ns.gransy.com`root@gransy.com serial=2783511413

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DNS History

1 record (1 active, 0 former)

●CNAMEsyntax.cz2026-05-10 → 2026-08-13 · 2 obs

● 2026-05-10 07:15:36
● 2026-08-13 21:11:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
syntax.cz	ns.gransy.com, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com...	-

✅ Authoritative Response

Server:80.67.7.209

NS records: ns.gransy.com, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com, ns5.gransy.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1600ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`syntax.cz`

Analysis

IP Addresses

mx5.syntax.cz resolves to just one IP address, 89.221.213.11.

Two other host names, along with devun.cz, hrajzona.cz and mail.1info.cz, also share IP numbers with mx5.syntax.cz.

Name Servers

mx5.syntax.cz delegates to five name servers: ns2.gransy.com, ns3.gransy.com, ns4.gransy.com and two others.

There is at least partial name server overlap between mx5.syntax.cz and other domains — pendleri.info, slunecny.net, gemasoft.cz and two more among them.

These name servers frequently co-occur with the name servers ns.gransy.com and ns5.gransy.com.

Host names directing to five IP addresses:

ns2.gransy.com has four IP addresses — 95.179.192.121, 217.16.185.221, 217.69.4.49 and two others.

ns3.gransy.com has four IP addresses — 46.21.100.103, 77.78.126.35, 109.74.7.71 and two others.

Host names that resolve to four IP numbers:

ns4.gransy.com resolves to four IP addresses — 66.42.94.136, 80.67.7.209, 2001:19f0:5401:69b:5400:1ff:fec5:8f3f and 2a00:1a28:2010:1::89.

ns.gransy.com resolves to four IP addresses — 45.76.90.43, 77.78.104.149, 95.179.136.180 and 2001:19f0:5001:1caf:5400:1ff:fec5:8d50.

Host names that have two IP addresses:

ns5.gransy.com resolves to two addresses: 31.192.227.223 and 2a02:750:5::538.

Mail Servers

The sole mail server for mx5.syntax.cz is mail.syntax.cz.

Mail server setup for mx5.syntax.cz matches that of other domains, among them syntax.cz.

mail.syntax.cz carries a single IP number, which is 82.208.29.194.

mx5.syntax.cz - dns.ninja

mx5.syntax.cz

syntax.cz