scer.cz - robtex.com

scer.cz

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:94ae🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:57ef🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.87.239Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.148.174🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnancy.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2654🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnancy.ns.cloudflare.com
A2803:f800:50::6ca2:c254🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnancy.ns.cloudflare.com
A2a06:98c1:50::ac40:2254🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnancy.ns.cloudflare.com
A108.162.194.84🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnancy.ns.cloudflare.com
A162.159.38.84Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnancy.ns.cloudflare.com
A172.64.34.84🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnancy.ns.cloudflare.com
NStodd.ns.cloudflare.com
A2606:4700:58::adf5:3b92🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
A2803:f800:50::6ca2:c192🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtodd.ns.cloudflare.com
A2a06:98c1:50::ac40:2192🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtodd.ns.cloudflare.com
A108.162.193.146🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
A172.64.33.146🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
A173.245.59.146🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
MXmx.stackmail.com ⭐
A185.151.28.67🇬🇧 TWENTYI185.151.28.0/24
PTRmx.stackmail.com
TXTv=spf1 include:spf.stackmail.com a mx -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.87.239, 172.67.148.174
IPv6 hints2606:4700:3033::ac43:94ae, 2606:4700:3036::6815:57ef
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=54, name=cloudflare-ech.com
SOAnancy.ns.cloudflare.comdns@cloudflare.com serial=2397406895

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=1775949452

Same first word

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DNS History

7 records (7 active, 0 former)

NSnancy.ns.cloudflare.comtodd.ns.cloudflare.comMXmx.stackmail.comA104.21.87.239172.67.148.1742606:4700:3033::ac43:94ae2606:4700:3036::6815:57ef
●NSnancy.ns.cloudflare.com2026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22
●NStodd.ns.cloudflare.com2026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22
●MXmx.stackmail.com2026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22
●A104.21.87.2392026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22
●A172.67.148.1742026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22
●A2606:4700:3033::ac43:94ae2026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22
●A2606:4700:3036::6815:57ef2026-04-07 → 2026-04-11 · 2 obs
● 2026-04-07 22:51:18
● 2026-04-11 23:58:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz8 records
scer.cztodd.ns.cloudflare.com, nancy.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.84

NS records: todd.ns.cloudflare.com, nancy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for scer.cz (unsigned zone)

⏱️ Timing

Total: 703ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.148.174, 104.21.87.239
AAAA22606:4700:3036::6815:57ef, 2606:4700:3033::ac43:94ae
NS2nancy.ns.cloudflare.com, todd.ns.cloudflare.com
MX1mx.stackmail.com (pri: 10)
TXT1v=spf1 include:spf.stackmail.com a mx -a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1nancy.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz...)

Analysis

IP Addresses

scer.cz maps to four IP numbers: 2606:4700:3033::ac43:94ae, 2606:4700:3036::6815:57ef, 104.21.87.239 and 172.67.148.174.

Other host names, for instance workphp.com, haolepen.com, vis-ion247team.pics, fcconception.fr and yqfei.net share IP numbers with scer.cz.

Name Servers

Two name servers nancy.ns.cloudflare.com and todd.ns.cloudflare.com handle delegation for scer.cz.

scer.cz uses the same name server setup as other domains, for example imaginefabfour.com, v-kino.net, aquanov.com, beehivegiving.org and pestotomacau.info.

scer.cz partially shares name servers with other domains; examples include kodomo99baru.com, personalizedstemcells.com, nathan.io, eyomove.top and hakucomputers.co.za.

These name servers commonly accompany rudy.ns.cloudflare.com, kim.ns.cloudflare.com, west.ns.cloudflare.com and clark.ns.cloudflare.com.

Host names with six IP numbers: nancy.ns.cloudflare.com points to: 2606:4700:50::a29f:2654, 2803:f800:50::6ca2:c254, 2a06:98c1:50::ac40:2254, 108.162.194.84, 162.159.38.84 and 172.64.34.84; todd.ns.cloudflare.com points to: 2606:4700:58::adf5:3b92, 2803:f800:50::6ca2:c192, 2a06:98c1:50::ac40:2192, 108.162.193.146, 172.64.33.146 and 173.245.59.146.

Mail Servers

scer.cz is handled by a single mail server, mx.stackmail.com.

scer.cz has the same mail server setup as other domains, including pho1.co, rpmmotors.co.uk, mavart.com, joyofbirds.com and capripower.co.uk.

scer.cz shares at least partially some mail servers with other domains, for instance saava.org.uk and georgiebarrat.com.

mx.stackmail.com points to a single IP: 185.151.28.67.