81.17.100.193
81.17.100.193 is an IPv4 address operated by CONTABO - Contabo GmbH, DE (AS51167), with approximate network location Lauterbourg, France. Its reverse DNS name is vmi2944600.contaboserver.net. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | MNT-CONTABO |
| ASN | AS51167 |
| Network Name | TT-20240404 |
| CIDR Block | 81.17.100.0/22 |
| RIR | RIPE |
| Network registration country | DE |
| Routing operator | CONTABO - Contabo GmbH, DE |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | vmi2944600.contaboserver.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | vmi2944600.contaboserver.net |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| caa | Not found at queried name net |
| spf | Unknown / lookup inconclusive app5.cloudtrack.uk, app6.cloudtrack.uk, app7.cloudtrack.uk, vmi2944600.contaboserver.net |
| dmarc | Unknown / lookup inconclusive _dmarc.app5.cloudtrack.uk, _dmarc.app6.cloudtrack.uk, _dmarc.app7.cloudtrack.uk, _dmarc.vmi2944600.contaboserver.net |
| dnssec | Unknown / lookup inconclusive 193.100.17.81.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive vmi2944600.contaboserver.net |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 3389, 8080, 8443 (3 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| Port | Probe target | Certificate finding |
|---|---|---|
| (IP-targeted) | CN=app5.cloudtrack.uk Historical certificate; current certificate unknown |
| SANs | app5.cloudtrack.ukapp6.cloudtrack.ukapp7.cloudtrack.uk |
| Valid From | 2026-08-19T12:34:33+00:00 |
| Valid Until | 2026-11-17T12:34:32+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384ECDSA |
| Validity Period | 89 days |
🛡️ Public Network Snapshot
| Origin ASN | AS51167 |
| Network Prefix | 81.17.100.0/22 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 21% | 2 | 6 |
| routing | 3% | 1 | 1 |
| services | 14% | 2 | 3 |
| ownership | 29% | 2 | 5 |
| reputation | 14% | 1 | 4 |
| geolocation | 7% | 2 | 3 |
| Overall | 15% | 10 | 22 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-02 04:22:17 UTC |
| Last Seen | 2026-11-13 08:33:25 UTC |
| Profile Built | 2026-11-13 08:40:35 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 41 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 81.17.100.193
Who owns the IP address 81.17.100.193?
81.17.100.193 is registered to MNT-CONTABO. The address falls within the 81.17.100.0/22 network block. Registration is held at RIPE.
Where is 81.17.100.193 located?
Geolocation data places 81.17.100.193 in Lauterbourg, Grand Est, France. The local time zone is Europe/Paris. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 81.17.100.193 malicious or safe?
81.17.100.193 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 81.17.100.193?
The reverse DNS (PTR) record for 81.17.100.193 is vmi2944600.contaboserver.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 81.17.100.193?
Responsive ports observed on 81.17.100.193 include 80, 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.