sysadmin.rs - dns.ninja

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=118, name=cloudflare-ech.com
SOAlisa.ns.cloudflare.comdns@cloudflare.com serial=2405780583

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: 2026-06-16 16:00:03 +02:00 (EPOCH 1781618403)
SOAa.nic.rshostmaster@nic.rs 2026-06-16 #34

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.is
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
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 → 2026-06-16 · 2 obs
● 2017-03-16 14:27:46
● 2026-06-16 14:14:42
●NSpete.ns.cloudflare.com2017-03-16 → 2026-06-16 · 2 obs
● 2017-03-16 14:27:46
● 2026-06-16 14:14:42
●MXmail.rtm.rs2026-02-15 → 2026-06-16 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
●A104.21.81.1342026-02-15 → 2026-06-16 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
●A172.67.161.502026-02-15 → 2026-06-16 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
○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
○ 2026-06-16 14:14:42
●A2606:4700:3037::6815:51862026-02-15 → 2026-06-16 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-06-16 14:14:42
●A2606:4700:3037::ac43:a1322026-02-15 → 2026-06-16 · 3 obs
○ 2020-01-25 23:58:12
● 2026-02-15 12:13:58
● 2026-06-16 14:14:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rsf.nic.rs, h.nic.rs, a.nic.rs, c.nic.rs...-
sysadmin.rslisa.ns.cloudflare.com, pete.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.136

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: 1090ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.81.134, 172.67.161.50
AAAA22606:4700:3037::6815:5186, 2606:4700:3037::ac43:a132
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

Analysis

Hierarchy

sysadmin.rs is a parent domain of mail.sysadmin.rs.

IP Addresses

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

mail.unozone.info, sgwww.legia.use.vn, rukometnizurnal.com plus two other host names have IP numbers in common with sysadmin.rs.

Name Servers

sysadmin.rs uses two name servers for its delegation: lisa.ns.cloudflare.com and pete.ns.cloudflare.com.

The name server configuration of sysadmin.rs is shared with other domains, for instance nahc4.org, roganoff.com, battle-net-account.de and two others.

sysadmin.rs shares at least some of its name servers with other domains, including uu88.gg, bertocco.com.tr, mazaldiamond.com and two others.

These name servers are frequently seen alongside the name servers ken.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname lisa.ns.cloudflare.com directs to 108.162.192.131, 172.64.32.131 and 173.245.58.131 along with 3 other IP addresses.

Hostname pete.ns.cloudflare.com directs to 108.162.193.136, 172.64.33.136 and 173.245.59.136 along with 3 other IP addresses.

Mail Servers

sysadmin.rs uses one mail server — mail.rtm.rs.

sysadmin.rs uses the same mail servers as other domains, including rtm.rs.

mail.rtm.rs directs to just one IP number, 157.90.97.24.