185.28.100.109
🏢 Ownership & Registration
| Organization | Erich Syrovatka |
| ASN | AS24806 |
| Network Name | CLOUD-SMART-36-CZ |
| CIDR Block | 185.28.100.0/24 |
| RIR | RIPE |
| Country | CZ |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 109.100.forpsi.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 109.100.forpsi.net |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | 2/2 domains |
| DMARC | 1/2 domains |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS24806 |
| Network Prefix | 185.28.100.0/22 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 0% | 0 | 0 |
| routing | 0% | 0 | 0 |
| services | 0% | 0 | 0 |
| ownership | 25% | 1 | 2 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 4% | 1 | 2 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-20 18:35:46 UTC |
| Last Seen | 2026-07-29 04:06:11 UTC |
| Profile Built | 2026-08-29 14:27:15 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 185.28.100.109
Who owns the IP address 185.28.100.109?
185.28.100.109 is registered to Erich Syrovatka. The address falls within the 185.28.100.0/24 network block. Registration is held at RIPE.
Where is 185.28.100.109 located?
Geolocation data places 185.28.100.109 in Prague, Prague, Czechia. The local time zone is Europe/Prague. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 185.28.100.109 malicious or safe?
185.28.100.109 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 185.28.100.109?
The reverse DNS (PTR) record for 185.28.100.109 is 109.100.forpsi.net. This hostname is not forward-confirmed, so it should be treated as a weak signal.