jhm.cz - robtex.com

jhm.cz

DNSSEC🔒 Signed (DS record present)
A2606:4700:3034::ac43:d67b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:5624🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.86.36Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.214.123🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSabby.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a64🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabby.ns.cloudflare.com
A2803:f800:50::6ca2:c064🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRabby.ns.cloudflare.com
A2a06:98c1:50::ac40:2064🇺🇸 Cloudflare2a06:98c1:50::/45
PTRabby.ns.cloudflare.com
A108.162.192.100🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabby.ns.cloudflare.com
A172.64.32.100🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabby.ns.cloudflare.com
A173.245.58.100🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabby.ns.cloudflare.com
NSaragorn.ns.cloudflare.com
A2606:4700:58::adf5:3b43🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaragorn.ns.cloudflare.com
A2803:f800:50::6ca2:c143🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRaragorn.ns.cloudflare.com
A2a06:98c1:50::ac40:2143🇺🇸 Cloudflare2a06:98c1:50::/45
PTRaragorn.ns.cloudflare.com
A108.162.193.67🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaragorn.ns.cloudflare.com
A172.64.33.67🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaragorn.ns.cloudflare.com
A173.245.59.67🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaragorn.ns.cloudflare.com
MXda37925e248c43ee.mx1.emailprofi.seznam.cz ⭐
A2a02:598:2::1056🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx1.emailprofi.seznam.cz
A77.75.77.56🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx1.emailprofi.seznam.cz
MXda37925e248c43ee.mx2.emailprofi.seznam.cz(20)
A2a02:598:2::1146🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx2.emailprofi.seznam.cz
A77.75.77.146🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx2.emailprofi.seznam.cz
TXTv=spf1 include:spf.seznam.cz -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.86.36, 172.67.214.123
IPv6 hints2606:4700:3034::ac43:d67b, 2606:4700:3035::6815:5624
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=152, name=cloudflare-ech.com
SOAabby.ns.cloudflare.comdns@cloudflare.com serial=2400892338

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1776064643

Same first word

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mjh.at
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jmh.at
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hjm.org.il
jmh.uk.net
hmj.org.br
mhj.co.id

DNS History

20 records (8 active, 12 former)

20162017201820192020202120222023202420252026NSabby.ns.cloudflare.comaragorn.ns.cloudflare.comns.web4u.czns1.websupport.skns2.web4u.czns2.websupport.skns3.websupport.skMXda37925e248c43ee.mx1.emailprofi.seznam.czda37925e248c43ee.mx2.emailprofi.seznam.czmail.jhm.czmailin1.jhm.czmailin2.jhm.czA104.21.86.36172.67.214.1232606:4700:3034::ac43:d67b2606:4700:3035::6815:56242001:1568::1437.9.175.1681.91.86.1281.91.86.14
●NSabby.ns.cloudflare.com2026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
●NSaragorn.ns.cloudflare.com2026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
○NSns.web4u.cz2015-08-24 → 2016-09-09 · 4 obs
● 2015-08-24 01:10:14
● 2016-09-09 06:21:52
○ 2016-11-01 04:12:54
○ 2026-04-13 07:30:50
○NSns1.websupport.sk2016-11-01 → 2018-12-24 · 5 obs
○ 2016-09-09 06:21:52
● 2016-11-01 04:12:54
● 2018-12-24 18:12:44
○ 2026-04-10 08:35:04
○ 2026-04-13 07:30:50
○NSns2.web4u.cz2015-08-24 → 2016-09-09 · 4 obs
● 2015-08-24 01:10:14
● 2016-09-09 06:21:52
○ 2016-11-01 04:12:54
○ 2026-04-13 07:30:50
○NSns2.websupport.sk2016-11-01 → 2018-12-24 · 5 obs
○ 2016-09-09 06:21:52
● 2016-11-01 04:12:54
● 2018-12-24 18:12:44
○ 2026-04-10 08:35:04
○ 2026-04-13 07:30:50
○NSns3.websupport.sk2016-11-01 → 2018-12-24 · 5 obs
○ 2016-09-09 06:21:52
● 2016-11-01 04:12:54
● 2018-12-24 18:12:44
○ 2026-04-10 08:35:04
○ 2026-04-13 07:30:50
●MXda37925e248c43ee.mx1.emailprofi.seznam.cz2026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
●MXda37925e248c43ee.mx2.emailprofi.seznam.cz2026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
○MXmail.jhm.cz2015-08-24 → 2016-09-09 · 4 obs
● 2015-08-24 01:10:14
● 2016-09-09 06:21:52
○ 2016-11-01 04:12:54
○ 2026-04-13 07:30:50
○MXmailin1.jhm.cz2016-11-01 → 2018-12-24 · 5 obs
○ 2016-09-09 06:21:52
● 2016-11-01 04:12:54
● 2018-12-24 18:12:44
○ 2026-04-10 08:35:04
○ 2026-04-13 07:30:50
○MXmailin2.jhm.cz2016-11-01 → 2018-12-24 · 5 obs
○ 2016-09-09 06:21:52
● 2016-11-01 04:12:54
● 2018-12-24 18:12:44
○ 2026-04-10 08:35:04
○ 2026-04-13 07:30:50
●A104.21.86.362026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
●A172.67.214.1232026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
○A2001:1568::142016-09-09 → 2016-09-09 · 4 obs
○ 2016-05-29 08:23:42
● 2016-09-09 06:21:52
○ 2016-11-01 04:12:54
○ 2026-04-13 07:30:50
●A2606:4700:3034::ac43:d67b2026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
●A2606:4700:3035::6815:56242026-04-10 → 2026-04-13 · 3 obs
○ 2018-12-24 18:12:44
● 2026-04-10 08:35:04
● 2026-04-13 07:30:50
○A37.9.175.162016-11-01 → 2018-12-24 · 5 obs
○ 2016-09-09 06:21:52
● 2016-11-01 04:12:54
● 2018-12-24 18:12:44
○ 2026-04-10 08:35:04
○ 2026-04-13 07:30:50
○A81.91.86.122015-08-24 → 2016-05-29 · 4 obs
● 2015-08-24 01:10:14
● 2016-05-29 08:23:42
○ 2016-09-09 06:21:52
○ 2026-04-13 07:30:50
○A81.91.86.142016-09-09 → 2016-09-09 · 4 obs
○ 2016-05-29 08:23:42
● 2016-09-09 06:21:52
○ 2016-11-01 04:12:54
○ 2026-04-13 07:30:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
jhm.czabby.ns.cloudflare.com, aragorn.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.100

NS records: abby.ns.cloudflare.com, aragorn.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 919ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.86.36, 172.67.214.123
AAAA22606:4700:3034::ac43:d67b, 2606:4700:3035::6815:5624
NS2abby.ns.cloudflare.com, aragorn.ns.cloudflare.com
MX2da37925e248c43ee.mx1.emailprofi.seznam.c, da37925e248c43ee.mx2.emailprofi.seznam.c
TXT1v=spf1 include:spf.seznam.cz -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1abby.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

jhm.cz maps to four IP numbers: 2606:4700:3034::ac43:d67b, 2606:4700:3035::6815:5624, 104.21.86.36 and 172.67.214.123.

Other host names, for instance (0x616e616c)(0x787878).net, qnola.co.uk, sourcefirenze.it, arabsword.com and theemus.com share IP numbers with jhm.cz.

Name Servers

Two name servers abby.ns.cloudflare.com and aragorn.ns.cloudflare.com are delegated to jhm.cz.

jhm.cz uses the same name server configuration as other domains, such as ojk.cz, brandshop.sk, offshore.co.il, epf.cz and uzbekistan.cz.

jhm.cz at least partially shares name servers with other domains such as wealthworldswiss.com, sklepslodkapasja.pl, tvful.ru, oexplicador.pt and banknote.pro.

These name servers are commonly used with bonnie.ns.cloudflare.com, lloyd.ns.cloudflare.com, fatima.ns.cloudflare.com and roxy.ns.cloudflare.com.

Host names with six IP numbers: Host name abby.ns.cloudflare.com points to 2606:4700:50::adf5:3a64, 2803:f800:50::6ca2:c064, 2a06:98c1:50::ac40:2064, 108.162.192.100, 172.64.32.100 and 173.245.58.100; host name aragorn.ns.cloudflare.com points to 2606:4700:58::adf5:3b43, 2803:f800:50::6ca2:c143, 2a06:98c1:50::ac40:2143, 108.162.193.67, 172.64.33.67 and 173.245.59.67.

Mail Servers

Two mail servers handle jhm.cz: da37925e248c43ee.mx1.emailprofi.seznam.cz and da37925e248c43ee.mx2.emailprofi.seznam.cz.

Host names with two IPs:

da37925e248c43ee.mx1.emailprofi.seznam.cz points to 2a02:598:2::1056 and 77.75.77.56.

da37925e248c43ee.mx2.emailprofi.seznam.cz points to 2a02:598:2::1146 and 77.75.77.146.