devs.cz - dns.ninja

devs.cz

DNSSEC๐Ÿ”’ Signed (DS record present)
NSns.forpsi.net โญ
A2001:15e8:101:1::c282๐Ÿ‡จ๐Ÿ‡ฟ INTERNET-CZ2001:15e8::/32
PTRns.forpsi.net
A81.2.194.130๐Ÿ‡จ๐Ÿ‡ฟ INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s.
PTRns.forpsi.net
NSns.forpsi.cz
A2001:15e8:201:1::d1b9๐Ÿ‡จ๐Ÿ‡ฟ INTERNET-CZ2001:15e8::/32
PTRns.forpsi.cz
A81.2.209.185๐Ÿ‡จ๐Ÿ‡ฟ INTERNET-CZ81.2.209.0/24
PTRns.forpsi.cz
NSns.forpsi.it
A2a00:6d41:2:1::5๐Ÿ‡ฎ๐Ÿ‡น ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network
PTRns.forpsi.it
A95.110.254.165๐Ÿ‡ฎ๐Ÿ‡น ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network
PTRhost165-254-110-95.serverdedicati.aruba.it
MXmx01.mail.icloud.com โญ
A17.42.251.62๐Ÿ‡บ๐Ÿ‡ธ Apple17.42.0.0/16
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
PTRmx3.mail.icloud.com
A17.56.9.31๐Ÿ‡บ๐Ÿ‡ธ Apple17.56.9.0/24
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
A17.57.152.5๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.152.0/23
PTRic4-privaterelay.appleid.com
PTRsmtp1.ic4-privaterelay.appleid.com
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
A17.57.154.33๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.154.0/24
A17.57.155.25๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.155.0/24
A17.57.156.30๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.156.0/24
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
MXmx02.mail.icloud.com โญ
A17.42.251.62๐Ÿ‡บ๐Ÿ‡ธ Apple17.42.0.0/16
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
PTRmx3.mail.icloud.com
A17.56.9.31๐Ÿ‡บ๐Ÿ‡ธ Apple17.56.9.0/24
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
A17.57.152.5๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.152.0/23
PTRic4-privaterelay.appleid.com
PTRsmtp1.ic4-privaterelay.appleid.com
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
A17.57.154.33๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.154.0/24
A17.57.155.25๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.155.0/24
A17.57.156.30๐Ÿ‡บ๐Ÿ‡ธ Apple17.57.156.0/24
PTRmx01.mail.icloud.com
PTRmx02.mail.icloud.com
TXTapple-domain=ly6rhrKxYjgy1PpA
TXTv=spf1 include:icloud.com ~all
SOAns.forpsi.netadmin@forpsi.com 2026-07-05 #1

cz

DNSSEC๐Ÿ”’ Signed (DS record present)
NSa.ns.nic.cz โญ
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1784954844

Same first word

Similar names

DNS History

7 records (5 active, 2 former)

20162017201820192020202120222023202420252026NSns.forpsi.czns.forpsi.itns.forpsi.netMXmx01.mail.icloud.commx02.mail.icloud.commail.servr.czA93.185.103.143
โ—NSns.forpsi.cz2015-06-26 โ†’ 2026-07-25 ยท 2 obs
โ— 2015-06-26 11:30:14
โ— 2026-07-25 05:40:50
โ—NSns.forpsi.it2015-06-26 โ†’ 2026-07-25 ยท 2 obs
โ— 2015-06-26 11:30:14
โ— 2026-07-25 05:40:50
โ—NSns.forpsi.net2015-06-26 โ†’ 2026-07-25 ยท 2 obs
โ— 2015-06-26 11:30:14
โ— 2026-07-25 05:40:50
โ—‹MXmail.servr.cz2016-03-18 โ†’ 2016-10-09 ยท 4 obs
โ— 2016-03-18 03:21:46
โ— 2016-10-09 20:12:22
โ—‹ 2026-03-26 13:27:14
โ—‹ 2026-07-25 05:40:50
โ—MXmx01.mail.icloud.com2026-03-26 โ†’ 2026-07-25 ยท 3 obs
โ—‹ 2016-10-09 20:12:22
โ— 2026-03-26 13:27:14
โ— 2026-07-25 05:40:50
โ—MXmx02.mail.icloud.com2026-03-26 โ†’ 2026-07-25 ยท 3 obs
โ—‹ 2016-10-09 20:12:22
โ— 2026-03-26 13:27:14
โ— 2026-07-25 05:40:50
โ—‹A93.185.103.1432015-06-26 โ†’ 2016-10-09 ยท 4 obs
โ— 2015-06-26 11:30:14
โ— 2016-10-09 20:12:22
โ—‹ 2026-03-26 13:27:14
โ—‹ 2026-07-25 05:40:50

๐Ÿ” DNS Trace

๐Ÿ“‹ Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
devs.czns.forpsi.net, ns.forpsi.it, ns.forpsi.cz2 records

โœ… Authoritative Response

Server:81.2.194.130

NS records: ns.forpsi.net, ns.forpsi.it, ns.forpsi.cz

๐Ÿ”’ DNSSEC Status

๐Ÿ” Secure (DNSSEC validated)

Chain of trust verified from root to domain

โฑ๏ธ Timing

Total: 1458ms | Queries: -

๐Ÿ“„ Records

TypeCountSample Data
NS3ns.forpsi.cz, ns.forpsi.it...
MX2mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)
TXT2apple-domain=ly6rhrKxYjgy1PpA, v=spf1 include:icloud.com ~all
SOA1ns.forpsi.net admin.forpsi.com

๐Ÿ“Œ Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)

Analysis

Name Servers

devs.cz carries NS records delegating to ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.

devs.cz has at least partial name server overlap with other domains, such as 7zscv.cz, hwmland.eu, ninha.cz and two others.

It is common to find these name servers paired with the name servers ns.forpsi.us.

ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net are three hostnames that each resolve to a pair of IP addresses: ns.forpsi.cz to 81.2.209.185 and 2001:15e8:201:1::d1b9, ns.forpsi.it to 95.110.254.165 and 2a00:6d41:2:1::5, and ns.forpsi.net to 81.2.194.130 and 2001:15e8:101:1::c282.

Mail Servers

devs.cz uses two mail servers, mx01.mail.icloud.com and mx02.mail.icloud.com.

The mail server setup of devs.cz matches that of other domains such as ishdeep.com, unrouted.co.uk, b1nk.net and two others.

devs.cz uses mail servers that are also used by other domains, including ouraboros.com, tomigunz.com and virajt.ca.

Hosts with 6 IP addresses each:

mx01.mail.icloud.com resolves to 17.42.251.62, 17.56.9.31 and 17.57.152.5 among others, with 3 other IP addresses in total.

mx02.mail.icloud.com resolves to 17.42.251.62, 17.56.9.31 and 17.57.152.5 among others, with 3 other IP addresses in total.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.42.251.62 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.56.9.31 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.152.5 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.154.33 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.155.25 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.156.30 IP addresses.