Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Long-established allocation (15y) +6
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Enterprise allocation +4
- Trust score 73 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- zabbix.cyber-folks.pl
- Forward-confirmed (FCrDNS)
- Not checked
- PTR TTL
- 14400 s
- Reverse DNS last checked
- 2026-11-04 14:59 UTC
- Forward DNS last checked
- 2026-11-04 14:59 UTC
Forward DNS records for zabbix.cyber-folks.pl
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 193.218.154.67 | — | 172800s |
| MX | zabbix.cyber-folks.pl | 10 | — |
| TXT | v=spf1 a mx ip4:193.218.154.67 -all | — | — |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Domains hosted
as of 2026-11-05 UTC0
issued.live's latest DNS data shows no domain resolving to this IP.
Domain data provided by issued.live — for full details visit https://issued.live/pricing
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.
- zabbix.cyber-folks.pl — Nov 4, 2026 → present
- proxy1-monitor.cyberfolks.pl — Nov 3, 2026 → Nov 4, 2026
- zabbix.cyber-folks.pl — Nov 2, 2026 → Nov 3, 2026
- proxy1-monitor.cyberfolks.pl — Nov 2, 2026 → Nov 2, 2026
- zabbix.cyber-folks.pl — Nov 1, 2026 → Nov 2, 2026
- proxy1-monitor.cyberfolks.pl — Oct 31, 2026 → Nov 1, 2026
- zabbix.cyber-folks.pl — Oct 29, 2026 → Oct 31, 2026
- proxy1-monitor.cyberfolks.pl — Oct 28, 2026 → Oct 29, 2026
- zabbix.cyber-folks.pl — Oct 28, 2026 → Oct 28, 2026
- proxy1-monitor.cyberfolks.pl — Oct 26, 2026 → Oct 28, 2026
- zabbix.cyber-folks.pl — Oct 24, 2026 → Oct 26, 2026
- proxy1-monitor.cyberfolks.pl — Oct 24, 2026 → Oct 24, 2026
- zabbix.cyber-folks.pl — Oct 23, 2026 → Oct 24, 2026
- proxy1-monitor.cyberfolks.pl — Oct 22, 2026 → Oct 23, 2026
- zabbix.cyber-folks.pl — Oct 22, 2026 → Oct 22, 2026
- proxy1-monitor.cyberfolks.pl — Oct 21, 2026 → Oct 22, 2026
- zabbix.cyber-folks.pl — Oct 21, 2026 → Oct 21, 2026
- proxy1-monitor.cyberfolks.pl — Oct 20, 2026 → Oct 21, 2026
- zabbix.cyber-folks.pl — Oct 18, 2026 → Oct 20, 2026
- proxy1-monitor.cyberfolks.pl — Oct 17, 2026 → Oct 18, 2026
- zabbix.cyber-folks.pl — Oct 17, 2026 → Oct 17, 2026
- proxy1-monitor.cyberfolks.pl — Oct 16, 2026 → Oct 17, 2026
- zabbix.cyber-folks.pl — Oct 15, 2026 → Oct 16, 2026
- proxy1-monitor.cyberfolks.pl — Oct 14, 2026 → Oct 15, 2026
- zabbix.cyber-folks.pl — Oct 13, 2026 → Oct 14, 2026
- proxy1-monitor.cyberfolks.pl — Oct 11, 2026 → Oct 13, 2026
- zabbix.cyber-folks.pl — Oct 10, 2026 → Oct 11, 2026
- proxy1-monitor.cyberfolks.pl — Oct 8, 2026 → Oct 10, 2026
- zabbix.cyber-folks.pl — Oct 7, 2026 → Oct 8, 2026
- proxy1-monitor.cyberfolks.pl — Oct 6, 2026 → Oct 7, 2026
- zabbix.cyber-folks.pl — Oct 5, 2026 → Oct 6, 2026
- proxy1-monitor.cyberfolks.pl — Oct 2, 2026 → Oct 5, 2026
- zabbix.cyber-folks.pl — Sep 30, 2026 → Oct 2, 2026
- proxy1-monitor.cyberfolks.pl — Sep 29, 2026 → Sep 30, 2026
- zabbix.cyber-folks.pl — Sep 27, 2026 → Sep 29, 2026
- proxy1-monitor.cyberfolks.pl — Aug 25, 2026 → Sep 27, 2026
- zabbix.cyber-folks.pl — Aug 19, 2026 → Aug 25, 2026
- proxy1-monitor.cyberfolks.pl — Aug 18, 2026 → Aug 19, 2026
- zabbix.cyber-folks.pl — Jul 9, 2026 → Aug 18, 2026
Network Allocation for 91.228.199.239
- CIDR range
- 91.228.196.0/22
- IP range (int)
- 1,541,719,040 — 1,541,720,063
- Prefix length
- /22
- Organization
- Cyber_Folks S.A.
- ASN
- AS41079
- ASN name
- Cyber_Folks S.A.
- Location
- Poland
- Coordinates
- 52.239400, 21.036200
- Accuracy radius
- 200 km
- Regional Internet Registry
- RIPE
- Allocated
- 2011-06-07
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-11-03 08:45:24
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 91.228.199.239?
91.228.199.239 is allocated to Cyber_Folks S.A. (AS41079), registered in Poland.
Where is 91.228.199.239 located?
The geolocation for 91.228.199.239 maps to Poland based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 91.228.199.239 on?
91.228.199.239 belongs to the 91.228.196.0/22 network block announced by AS41079. This range contains 1,024 addresses.
Does 91.228.199.239 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
