sysadmin.rs - robtex.com

sysadmin.rs

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:5186🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:a132🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.81.134Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.161.50🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlisa.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a83🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A2803:f800:50::6ca2:c083🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlisa.ns.cloudflare.com
A2a06:98c1:50::ac40:2083🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlisa.ns.cloudflare.com
A108.162.192.131🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A172.64.32.131🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A173.245.58.131🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
NSpete.ns.cloudflare.com
A2606:4700:58::adf5:3b88🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
A2803:f800:50::6ca2:c188🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpete.ns.cloudflare.com
A2a06:98c1:50::ac40:2188🇺🇸 Cloudflare2a06:98c1:50::/45
PTRpete.ns.cloudflare.com
A108.162.193.136🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
A172.64.33.136🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
A173.245.59.136🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
MXmail.rtm.rs ⭐
A157.90.97.24🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC
PTRstatic.24.97.90.157.clients.your-server.de
TXTv=spf1 mx a ip4:157.90.97.24 ip6:2a01:4f8:231:6de:0:0:0:5 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.81.134, 172.67.161.50
IPv6 hints2606:4700:3037::6815:5186, 2606:4700:3037::ac43:a132
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=110, name=cloudflare-ech.com
SOAlisa.ns.cloudflare.comdns@cloudflare.com serial=2402631592

rs

DNSSEC🔒 Signed (DS record present)
NSa.nic.rs ⭐
NSb.nic.rs
NSc.nic.rs
NSf.nic.rs
NSh.nic.rs
NSl.nic.rs
TXTrs zone update: 2026-05-09 20:30:03 +02:00 (EPOCH 1778351403)
SOAa.nic.rshostmaster@nic.rs 2026-05-09 #43

Subdomains

mail.sysadmin.rs

Same first word

sysadmin.kz
sysadmin.com.pl
sysadmin.awsapps.com
sysadmin.fr
sysadmin.org
sysadmin.chat
sysadmin.com.ua
sysadmin.co
sysadmin.in
sysadmin.systems
sysadmin.com.ve
sysadmin.tv
sysadmin.beer
sysadmin.su
sysadmin.sh
sysadmin.it
sysadmin.co.id
sysadmin.pm
sysadmin.io
sysadmin.biz
sysadmin.nu
sysadmin.mx
sysadmin.zip
sysadmin.com.mx
sysadmin.xyz
sysadmin.uz
sysadmin.com.br
sysadmin.life
sysadmin.info
sysadmin.bg
sysadmin.eu
sysadmin.be
sysadmin.md
sysadmin.com
sysadmin.ge
sysadmin.name
sysadmin.bialystok.pl
sysadmin.de
sysadmin.win
sysadmin.web.id
sysadmin.ru
sysadmin.technology
sysadmin.express
sysadmin.im
sysadmin.no
sysadmin.pe.kr
sysadmin.network
sysadmin.pt
sysadmin.run
sysadmin.monster
sysadmin.care
sysadmin.us
sysadmin.link
sysadmin.rs
sysadmin.cc
sysadmin.pro
sysadmin.guru
sysadmin.am
sysadmin.in.ua
sysadmin.co.in
sysadmin.fi
sysadmin.lv
sysadmin.dk
sysadmin.com.au
sysadmin.sk
sysadmin.poltava.ua
sysadmin.cl
sysadmin.tools
sysadmin.lt
sysadmin.at
sysadmin.jp
sysadmin.st
sysadmin.dp.ua
sysadmin.org.mx
sysadmin.site
sysadmin.co.uk
sysadmin.lk
sysadmin.bz
sysadmin.ca
sysadmin.gr
sysadmin.noip.me
sysadmin.com.uy
sysadmin.cn
sysadmin.guide
sysadmin.net.nz
sysadmin.se

Similar names

adminsys.co.id
adminsys.org
adminsys.fr
adminsys.serveftp.com
adminsys.de
andysims.com
adminsys.nl
adminsys.ru
madissyn.com
adminsys.be
mindsays.com
daisymns.com
missnady.it
aydinsms.com
adminsys.eu
mindasys.com
adminsys.net
adminsys.com
missandy.com
dynamiss.com
adminsys.ch

DNS History

14 records (7 active, 7 former)

201820192020202120222023202420252026NSlisa.ns.cloudflare.compete.ns.cloudflare.comMXmail.rtm.rsmail.sysadmin.rsA104.21.81.134172.67.161.502606:4700:3037::6815:51862606:4700:3037::ac43:a132104.27.166.243104.27.167.2432400:cb00:2048:1::681b:a6f32400:cb00:2048:1::681b:a7f32606:4700:3031::681b:a7f32606:4700:3034::681b:a6f3
●NSlisa.ns.cloudflare.com2017-03-16 → 2026-05-09 · 2 obs
● 2017-03-16 14:27:46
● 2026-05-09 19:02:06
●NSpete.ns.cloudflare.com2017-03-16 → 2026-05-09 · 2 obs
● 2017-03-16 14:27:46
● 2026-05-09 19:02:06
●MXmail.rtm.rs2026-02-15 → 2026-05-09 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-05-09 19:02:06
○MXmail.sysadmin.rs2017-03-16 → 2020-01-25 · 4 obs
● 2017-03-16 14:27:46
● 2020-01-25 23:58:12
○ 2026-02-15 12:13:58
○ 2026-05-09 19:02:06
●A104.21.81.1342026-02-15 → 2026-05-09 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-05-09 19:02:06
○A104.27.166.2432017-03-16 → 2020-01-25 · 4 obs
● 2017-03-16 14:27:46
● 2020-01-25 23:58:12
○ 2026-02-15 12:13:58
○ 2026-05-09 19:02:06
○A104.27.167.2432017-03-16 → 2020-01-25 · 4 obs
● 2017-03-16 14:27:46
● 2020-01-25 23:58:12
○ 2026-02-15 12:13:58
○ 2026-05-09 19:02:06
●A172.67.161.502026-02-15 → 2026-05-09 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-05-09 19:02:06
○A2400:cb00:2048:1::681b:a6f32017-03-16 → 2017-03-16 · 3 obs
● 2017-03-16 14:27:46
○ 2020-01-25 23:58:12
○ 2026-05-09 19:02:06
○A2400:cb00:2048:1::681b:a7f32017-03-16 → 2017-03-16 · 3 obs
● 2017-03-16 14:27:46
○ 2020-01-25 23:58:12
○ 2026-05-09 19:02:06
○A2606:4700:3031::681b:a7f32020-01-25 → 2020-01-25 · 4 obs
○ 2017-03-16 14:27:46
● 2020-01-25 23:58:12
○ 2026-02-15 12:13:58
○ 2026-05-09 19:02:06
○A2606:4700:3034::681b:a6f32020-01-25 → 2020-01-25 · 4 obs
○ 2017-03-16 14:27:46
● 2020-01-25 23:58:12
○ 2026-02-15 12:13:58
○ 2026-05-09 19:02:06
●A2606:4700:3037::6815:51862026-02-15 → 2026-05-09 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-05-09 19:02:06
●A2606:4700:3037::ac43:a1322026-02-15 → 2026-05-09 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-05-09 19:02:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rsa.nic.rs, b.nic.rs, c.nic.rs, f.nic.rs...12 records
sysadmin.rslisa.ns.cloudflare.com, pete.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.131

NS records: lisa.ns.cloudflare.com, pete.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysadmin.rs (unsigned zone)

⏱️ Timing

Total: 1080ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.81.134, 172.67.161.50
AAAA22606:4700:3037::ac43:a132, 2606:4700:3037::6815:5186
NS2lisa.ns.cloudflare.com, pete.ns.cloudflare.com
MX1mail.rtm.rs (pri: 10)
TXT1v=spf1 mx a ip4:157.90.97.24 ip6:2a01:4
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1lisa.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.rs, b.nic.rs, c.nic.rs...)

Analysis

Hierarchy

sysadmin.rs is the parent of mail.sysadmin.rs.

IP Addresses

sysadmin.rs resolves to four IP numbers: 2606:4700:3037::6815:5186, 2606:4700:3037::ac43:a132, 104.21.81.134 and 172.67.161.50.

other host names for instance mail.unozone.info, sgwww.legia.use.vn, rukometnizurnal.com, rtpjitu-apinaga.live and ludibria.com share IP numbers with sysadmin.rs.

Name Servers

sysadmin.rs is delegated to two name servers: lisa.ns.cloudflare.com and pete.ns.cloudflare.com.

sysadmin.rs shares the same name server setup as other domains, for example nahc4.org, roganoff.com, battle-net-account.de, infiumhost.com and dans.coffee.

sysadmin.rs at least partially shares name servers with other domains, for instance uu88.gg, bertocco.com.tr, mazaldiamond.com, budgetsfcru.com and vocalremover.ru.

These name servers are commonly used with the name servers ken.ns.cloudflare.com.

Host names with six IP numbers:

lisa.ns.cloudflare.com points to: 2606:4700:50::adf5:3a83, 2803:f800:50::6ca2:c083, 2a06:98c1:50::ac40:2083, 108.162.192.131, 172.64.32.131 and 173.245.58.131; pete.ns.cloudflare.com points to: 2606:4700:58::adf5:3b88, 2803:f800:50::6ca2:c188, 2a06:98c1:50::ac40:2188, 108.162.193.136, 172.64.33.136 and 173.245.59.136.

Mail Servers

sysadmin.rs is handled by a single mail server, mail.rtm.rs.

sysadmin.rs shares the same mail server setup as other domains, for example rtm.rs.

Host name mail.rtm.rs points to IP address 157.90.97.24.