89.23.108.134
IP Intelligence Dossier
Your IP: 216.73.216.123
🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.
IP Intelligence Briefing: 89.23.108.134
Date: 2026-06-11
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**1. Profile Summary**
- Risk Score: 50 (Moderate Risk)
- Ownership: Managed by Global Connectivity Solutions (ASN 215540), registered with RIPE.
- Geolocation: Germany (DE), region SVE, city Yekaterinburg (note: Yekaterinburg is in Russia, potential geolocation inconsistency).
- Threat Indicators: No malicious activity detected; no known attackers, spam, or blacklist entries.
- Network Role: Web server (HTTPS/SSH), associated with Technische Universitaet Dresden via TLS certificate.
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**2. Observation History**
- Risk Trends: Stable with no persistent threats; 63 observations over 30 days.
- Key Signals:
- DNSSEC valid, SPF/DKIM configured.
- Low route stability score (0.35) but no recent route changes.
- No DNSBL listings.
- Anomalies: Geolocation inconsistency (Germany vs. Russian city).
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**3. Relationships & Network Context**
- Linked Entities:
- Subnet 89.23.108.0/24 (abuse density: 0.5, classified as "mostly clean").
- TLS certificate chain ties to tu-dresden.de (university).
- DNS PTR records point to ip-ptr.tech (mixed-use domain).
- Neighbors:
- 89.23.108.154 (risk score: 25/100, low risk).
- Subnet shows 1 active sibling with moderate risk.
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**4. Actionable Insights**
- Monitor Geolocation Discrepancy: Investigate why the IP resolves to Yekaterinburg (Russia) despite being registered in Germany.
- Validate TLS/SSL Configuration: Ensure the certificate chain (CN=tu-dresden.de) aligns with the university’s infrastructure.
- Check Subnet Health: While the subnet is "mostly clean," monitor neighboring IPs (e.g., 89.23.108.154) for emerging risks.
- Verify DNS Security: Confirm SPF/DKIM alignment with the domain ip-ptr.tech to prevent spoofing.
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Recommendation: This IP appears legitimate but requires scrutiny of geolocation anomalies and subnet activity. No immediate mitigation needed, but ongoing monitoring is advised.
Tools Used: `ipdebrief_profile`, `ipdebrief_history`, `ipdebrief_relationships`, `ipdebrief_neighbors`.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Global Connectivity Solutions |
| ASN | AS215540 |
| Network Name | — |
| CIDR Block | 89.23.108.0/24 |
| RIR | RIPE |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 191736.ip-ptr.tech |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 191736.ip-ptr.tech |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 443 | https | tcp | — |
| 22 | ssh | tcp | |
| Closed Ports | 25, 80, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | nginx |
| HTTP Title | — |
| SSH Version | SSH-2.0-Go |
🔐 TLS Certificate
CN=tu-dresden.de, O=Technische Universitaet Dresden, S=Sachsen, C=DE
Issued by CN=GEANT TLS ECC 1, O=Hellenic Academic and Research Institutions CA, C=GR
Self-signed: No
| SANs | tu-dresden.dedresden-uni.euwww.tud.deweltoffenheit.tu-dresden.dewww.dresden-uni.euwww.dresden-uni.netwww.tu-dresden.orguni-dresden.dedresden-uni.infowww.tu-dresden.de |
| Valid From | 2025-10-28T16:20:14+00:00 |
| Valid Until | 2026-10-28T16:20:14+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384ECDSA |
| Validity Period | 365 days |
| Serial Number | 58AFACF8F7FFF7BB874310D318A6F5A5 |
| Thumbprint | 473C15E99ACC33C1A796FA64891B53CEF4A8A7EC |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 27% | 2 | 3 |
| services | 30% | 2 | 3 |
| ownership | 35% | 3 | 5 |
| reputation | 22% | 1 | 3 |
| geolocation | 15% | 2 | 2 |
| Overall | 26% | 12 | 20 |
Coverage: 6/6 dimensions · Data sufficiency: sufficient
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:41 UTC |
| Last Seen | 2026-06-26 18:11:41 UTC |
| Profile Built | 2026-06-26 07:41:36 UTC |
| Data Freshness | Live |
| Signal Types | 29 |
| Total Observations | 31 |
🔍 29 signal types · 31 observations collected
This report is generated from 29+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
ℹ️ About This Report
All data shown is publicly available network metadata — IP addresses do not reliably identify individuals.
Assessments are probabilistic and should not be used as sole basis for access control decisions.
To report an issue or request data review, contact admin@ipdebrief.com.