`developer.cz`

DNSSEC	⚠️ Not signed
A	194.212.89.122^{🇨🇿 TMOBILE-CZ194.212.0.0/16 T-Mobile Czech Republic a.s.}
NS	`ns.sprinx.cz` ⭐
		A	194.212.89.20^{🇨🇿 TMOBILE-CZ194.212.0.0/16 T-Mobile Czech Republic a.s.}
			PTR	`ns.sprinx.cz`
NS	`smudla.svamberk.cz`
		A	80.188.171.249^{🇨🇿 O2-CZECH-REPUBLIC80.188.128.0/17 CZ.CZNET}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c25::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f26.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
SOA	`ns.sprinx.cz`postmaster@sprinx.cz 1998-01-29 #43

`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.cz`hostmaster@nic.cz serial=1783824439

WOT: SAFE (60/100)

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developer.cz

Similar names

DNS History

7 records (6 active, 1 former)

●NSns.sprinx.cz2015-06-26 → 2026-07-12 · 2 obs

● 2015-06-26 05:51:46
● 2026-07-12 03:33:46

●NSsmudla.svamberk.cz2015-06-26 → 2026-07-12 · 2 obs

● 2015-06-26 05:51:46
● 2026-07-12 03:33:46

●MXalt2.aspmx.l.google.com2015-06-26 → 2026-07-12 · 2 obs

● 2015-06-26 05:51:46
● 2026-07-12 03:33:46

●MXaspmx.l.google.com2015-06-26 → 2026-07-12 · 2 obs

● 2015-06-26 05:51:46
● 2026-07-12 03:33:46

●MXaspmx2.googlemail.com2015-06-26 → 2026-07-12 · 2 obs

● 2015-06-26 05:51:46
● 2026-07-12 03:33:46

●A194.212.89.1222026-03-02 → 2026-07-12 · 3 obs

○ 2017-10-23 23:58:32
● 2026-03-02 22:11:10
● 2026-07-12 03:33:46

○A194.212.89.862015-06-26 → 2017-10-23 · 4 obs

● 2015-06-26 05:51:46
● 2017-10-23 23:58:32
○ 2026-03-02 22:11:10
○ 2026-07-12 03:33:46

🔍 DNS Trace

Analysis

IP Addresses

developer.cz has exactly one IP address — 194.212.89.122.

sprinx.net, ferovapujcka.cz, sprinx.eu plus two other host names have IP numbers in common with developer.cz.

Name Servers

developer.cz is served by two delegated name servers, ns.sprinx.cz and smudla.svamberk.cz.

The name server configuration of developer.cz is shared with other domains, for instance noga.cz, tvujmobil.cz, touchcue.com and two others.

developer.cz partially shares its NS delegation with several other domains, including prokes-rubber.sk, conciergemedicine.cz, bonusia.eu and two others.

The name servers ns2.livebox.cz, ns.sprinx.com, ns.sprinx.net and ns2.contactel.cz are often found in use alongside these name servers.

ns.sprinx.cz resolves to 194.212.89.20. smudla.svamberk.cz resolves to 80.188.171.249. Both host names point to a single IP number.

Mail Servers

developer.cz uses three mail servers — aspmx2.googlemail.com, aspmx.l.google.com and alt2.aspmx.l.google.com.

At least some of the mail servers used by developer.cz are shared with other domains: ns500759.ns500759.ns500759.ns500735.ns500698.ns500735.ns500736.ns500735.ns500698.ns500698.ns500708.ns500576.ns500698.ns500576.ns500652.ns500652.ns500619.trackreceptor.com, ns500731.ns500742.ns500731.ns500731.ns500754.ns500731.ns500742.ns500704.ns500704.ns500704.ns500705.ns500153.tenderladiesbz.com, ns500742.ns500742.ns500742.ns500671.ns500671.ns500671.ns500688.ns500671.ns500688.ns500671.ns500705.ns500671.ns500291.ns500291.ns500291.ns500131.lustychickser.com and two others among them.

These mail servers are often deployed together with alt1.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and 3 other mail servers.

aspmx2.googlemail.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a. aspmx.l.google.com resolves to 142.251.167.26 and 2607:f8b0:4004:c25::1a. alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1b. All three hostnames point to two IP numbers each.

developer.cz - robtex.com

developer.cz

cz

Same first word

Similar names

DNS History

🔍 DNS Trace

Analysis

IP Addresses

Name Servers

Mail Servers

`developer.cz`

`cz`