sys.pl - dns.ninja

sys.pl

DNSSEC⚠️ Not signed
A82.146.251.183🇵🇱 PL-BYDMAN-EDU82.146.224.0/19 Educational Users University of Technology&Agriculture Bydgoszcz, Poland
NSbyd.pl
A82.146.251.183🇵🇱 PL-BYDMAN-EDU82.146.224.0/19 Educational Users University of Technology&Agriculture Bydgoszcz, Poland
NSns1.byd.pl ⚠️ Not in parent delegation
A82.146.251.81🇵🇱 PL-BYDMAN-EDU82.146.224.0/19 Educational Users University of Technology&Agriculture Bydgoszcz, Poland
NSns1.sys.pl ⚠️ Not in zone NS records
A82.146.251.81🇵🇱 PL-BYDMAN-EDU82.146.224.0/19 Educational Users University of Technology&Agriculture Bydgoszcz, Poland
NSns2.byd.pl ⚠️ Not in parent delegation
A82.146.251.82🇵🇱 PL-BYDMAN-EDU82.146.224.0/19 Educational Users University of Technology&Agriculture Bydgoszcz, Poland
NSns2.sys.pl ⚠️ Not in zone NS records
A82.146.251.82🇵🇱 PL-BYDMAN-EDU82.146.224.0/19 Educational Users University of Technology&Agriculture Bydgoszcz, Poland
MXsys-pl.mail.protection.outlook.com
A2a01:111:f403:ca04::4🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00204.inbound.protection.outlook.com
A2a01:111:f403:ca04::a🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-du0pr03cu00102.inbound.protection.outlook.com
A2a01:111:f403:ca09::9🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr04cu00801.inbound.protection.outlook.com
A2a01:111:f403:ca09::e🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am7pr05cu00206.inbound.protection.outlook.com
A52.101.68.27🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00503.inbound.protection.outlook.com
A52.101.73.11🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am1pr04cu00103.inbound.protection.outlook.com
A52.101.73.19🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr04cu00803.inbound.protection.outlook.com
A52.101.73.22🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00106.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com -all
TXTHARICA-JkyIjkiZKsEKsTWa9ug
TXTMS=ms94298923
SOAbyd.pladmin@byd.pl 2026-07-08 #1

pl

DNSSEC🔒 Signed (DS record present)
NSa-dns.pl
NSb-dns.pl
NSd-dns.pl
NSf-dns.pl
NSh-dns.pl
NSj-dns.pl
TXTccTLD of Poland
SOAa-dns.pldnsmaster@nask.pl serial=1786343600

Subdomains

Same first word

Similar names

DNS History

11 records (7 active, 4 former)

20162017201820192020202120222023202420252026NSbyd.plns1.byd.plns1.sys.plns2.byd.plns2.sys.pldns.kolfer.com.pldns2.kolfer.com.pltih.plMXsys-pl.mail.protection.outlook.comA82.146.251.18382.146.251.252
NSbyd.pl2026-03-03 → 2026-08-10 · 3 obs
○ 2016-07-19 09:58:00
● 2026-03-03 18:35:12
● 2026-08-10 20:07:26
NSdns.kolfer.com.pl2015-08-03 → 2016-07-19 · 4 obs
● 2015-08-03 12:05:18
● 2016-07-19 09:58:00
○ 2026-03-03 18:35:12
○ 2026-08-10 20:07:26
NSdns2.kolfer.com.pl2015-08-03 → 2016-07-19 · 4 obs
● 2015-08-03 12:05:18
● 2016-07-19 09:58:00
○ 2026-03-03 18:35:12
○ 2026-08-10 20:07:26
NSns1.byd.pl2026-03-03 → 2026-08-10 · 3 obs
○ 2016-07-19 09:58:00
● 2026-03-03 18:35:12
● 2026-08-10 20:07:26
NSns1.sys.pl2026-03-03 → 2026-08-10 · 3 obs
○ 2016-07-19 09:58:00
● 2026-03-03 18:35:12
● 2026-08-10 20:07:26
NSns2.byd.pl2026-03-03 → 2026-08-10 · 3 obs
○ 2016-07-19 09:58:00
● 2026-03-03 18:35:12
● 2026-08-10 20:07:26
NSns2.sys.pl2026-03-03 → 2026-08-10 · 3 obs
○ 2016-07-19 09:58:00
● 2026-03-03 18:35:12
● 2026-08-10 20:07:26
NStih.pl2015-08-03 → 2016-07-19 · 4 obs
● 2015-08-03 12:05:18
● 2016-07-19 09:58:00
○ 2026-03-03 18:35:12
○ 2026-08-10 20:07:26
MXsys-pl.mail.protection.outlook.com2015-08-03 → 2026-08-10 · 2 obs
● 2015-08-03 12:05:18
● 2026-08-10 20:07:26
A82.146.251.1832026-03-03 → 2026-08-10 · 3 obs
○ 2016-07-19 09:58:00
● 2026-03-03 18:35:12
● 2026-08-10 20:07:26
A82.146.251.2522015-08-03 → 2016-07-19 · 4 obs
● 2015-08-03 12:05:18
● 2016-07-19 09:58:00
○ 2026-03-03 18:35:12
○ 2026-08-10 20:07:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
plh-dns.pl, f-dns.pl, a-dns.pl, d-dns.pl...-
sys.plns2.sys.pl, ns1.sys.pl2 records

✅ Authoritative Response

Server:82.146.251.82

NS records: ns2.sys.pl, ns1.sys.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys.pl (unsigned zone)

⏱️ Timing

Total: 413ms | Queries: -

📄 Records

TypeCountSample Data
A182.146.251.183
NS2ns2.byd.pl, ns1.byd.pl
MX1sys-pl.mail.protection.outlook.com (pri:
TXT3v=spf1 include:spf.protection.outlook.co, HARICA-JkyIjkiZKsEKsTWa9ug...
SOA1byd.pl admin.byd.pl

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.sys.pl, ns2.sys.pl)

Analysis

Hierarchy

sys.pl is the parent domain of ns1.sys.pl and ns2.sys.pl.

IP Addresses

sys.pl points to a single IP number: 82.146.251.183.

Additional host names — byd.pl, wsg.malbork.pl, wsg.slupsk.pl and two others — share IP numbers with sys.pl.

Name Servers

Delegation for sys.pl is to five name servers: byd.pl, ns1.byd.pl, ns2.byd.pl and two others.

sys.pl has at least partial name server overlap with other domains, such as isaps.pl, wsg.malbork.pl, wsg.slupsk.pl and two others.

dns2.kolfer.com.pl, dns.kolfer.com.pl and dns2.byd.pl — plus 3 other name servers — are commonly paired with these name servers.

Host names pointing to a single IP address:

byd.pl directs to 82.146.251.183.

ns1.byd.pl directs to 82.146.251.81.

ns2.byd.pl directs to 82.146.251.82.

ns1.sys.pl directs to 82.146.251.81.

ns2.sys.pl directs to 82.146.251.82.

Host names pointing to 82.146.251.81 IP addresses: ns1.byd.pl and ns1.sys.pl.

Host names pointing to 82.146.251.82 IP addresses: ns2.byd.pl and ns2.sys.pl.

Mail Servers

sys.pl has one mail server: sys-pl.mail.protection.outlook.com.

sys-pl.mail.protection.outlook.com points to 8 IP numbers: 52.101.68.27, 52.101.73.11, 52.101.73.19 and 5 other.