136.144.238.41
🏢 Ownership & Registration
| Organization | TransIP B.V. Admin |
| ASN | AS20857 |
| Network Name | TRANSIP-136-144-192-0 |
| CIDR Block | 136.144.192.0/18 |
| RIR | ARIN |
| Country | NL |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | smtp.lakonfiguration.fr |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | smtp.lakonfiguration.fr |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 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
| SANs | smtp.lakonfiguration.fr |
| Valid From | 2026-07-16T05:18:06+00:00 |
| Valid Until | 2026-10-14T05:18:05+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384ECDSA |
| Validity Period | 89 days |
🛡️ Public Network Snapshot
| Origin ASN | AS20857 |
| Network Prefix | 136.144.128.0/17 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Not detected |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 2 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 25% | 1 | 1 |
| geolocation | 25% | 1 | 1 |
| Overall | 22% | 6 | 6 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-03 04:40:04 UTC |
| Last Seen | 2026-08-25 01:40:02 UTC |
| Profile Built | 2026-08-29 09:17:39 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 22 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 136.144.238.41
Who owns the IP address 136.144.238.41?
136.144.238.41 is registered to TransIP B.V. Admin. The address falls within the 136.144.192.0/18 network block. Registration is held at ARIN.
Where is 136.144.238.41 located?
Geolocation data places 136.144.238.41 in Leiden, North Holland, Netherlands. The local time zone is Europe/Amsterdam. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 136.144.238.41 malicious or safe?
136.144.238.41 currently carries a high risk assessment, meaning indicators associated with malicious or abusive activity have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 136.144.238.41?
The reverse DNS (PTR) record for 136.144.238.41 is smtp.lakonfiguration.fr. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 136.144.238.41?
Responsive ports observed on 136.144.238.41 include 80, 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.