81.17.47.17
81.17.47.17 is an IPv4 address operated by LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL (AS60781), with approximate network location Amsterdam, Netherlands. Its reverse DNS name is ce04.ams-02.nl.leaseweb.net. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | LEASEWEB-NL-MNT |
| ASN | AS60781 |
| Network Name | NL-LEASEWEB-20020109 |
| CIDR Block | 81.17.32.0/20 |
| RIR | RIPE |
| Network registration country | NL |
| Routing operator | LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ce04.ams-02.nl.leaseweb.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | ce04.ams-02.nl.leaseweb.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 | Present / verified leaseweb.net |
| spf | Unknown / lookup inconclusive ce04.ams-02.nl.leaseweb.net |
| dmarc | Unknown / lookup inconclusive _dmarc.ce04.ams-02.nl.leaseweb.net |
| dnssec | Unknown / lookup inconclusive 17.47.17.81.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive ce04.ams-02.nl.leaseweb.net |
☁️ 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 | AS60781 |
| Network Prefix | 81.17.47.0/24 |
| Route mapping | Found |
| Certificates in transparency logs | 0 certificates |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 33% | 2 | 4 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-03 10:09:10 UTC |
| Last Seen | 2026-11-08 08:45:49 UTC |
| Profile Built | 2026-11-13 07:06:22 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 38 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 81.17.47.17
Who owns the IP address 81.17.47.17?
81.17.47.17 is registered to LEASEWEB-NL-MNT. The address falls within the 81.17.32.0/20 network block. Registration is held at RIPE.
Where is 81.17.47.17 located?
Geolocation data places 81.17.47.17 in Amsterdam, NH, Netherlands. The local time zone is Europe/Amsterdam. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 81.17.47.17 malicious or safe?
81.17.47.17 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 81.17.47.17?
The reverse DNS (PTR) record for 81.17.47.17 is ce04.ams-02.nl.leaseweb.net. This hostname is not forward-confirmed, so it should be treated as a weak signal.