202.8.43.146
IP Intelligence Briefing: 202.8.43.146
Date: 2026-06-09
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Ownership: Ahrefs Pte Ltd (ASN 140577, APNIC)
- Geolocation:
- Claimed: Virginia, USA (39°N, 77.43W)
- Discrepancy: RTT (25ms) inconsistent with 6,312km distance; geo-plausibility flagged as false.
- Network Role: Firewalled / No Services (no open ports, no TLS/HTTP signatures).
- DNS:
- PTR hostname: `sardine914.ahrefs.net`
- No email authentication (SPF/DKIM) detected.
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**2. Threat & Behavior**
- Threat Indicators:
- No direct malicious activity (no malware, C2, or exploit signs).
- DNS Listings: 1 high-severity threat listing (confidence 0.85).
- BGP: Stable route (AS 140577) with no recent changes.
- Abuse Density: Subnet abuse density: 0% (low risk).
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**3. Network Relationships**
- DNS Associations:
- Linked to `sardine914.ahrefs.net` (4 instances).
- Network Peers:
- Same subnet (`202.8.42.0/23`) with 80 IPs (53 low-risk, 27 medium-risk).
- No known malicious peers.
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**4. Temporal Trends**
- Observation History:
- Recent DNS and geolocation anomalies (RTT discrepancy).
- No persistent malicious activity detected.
- Stability:
- Subnet route stability: 0 changes in 30 days.
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**5. Recommendations**
- Monitor:
- Track DNS resolution for `sardine914.ahrefs.net` for unexpected changes.
- Investigate geolocation spoofing (discrepancy between claimed location and RTT).
- Mitigation:
- No immediate firewall rules required due to low-risk profile.
- Validate DNSSEC and CAA records for subdomain security.
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Source: IPDebrief Threat Intelligence Platform | Confidence: Moderate (geolocation spoofing suspected)
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Ahrefs Pte Ltd administrator |
| ASN | AS140577 |
| Network Name | AHREFS-CRAWLER-B-USA |
| CIDR Block | 202.8.42.0/23 |
| RIR | APNIC |
| Country | US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | sardine914.ahrefs.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | sardine914.ahrefs.net |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 13% | 1 | 1 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 30% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 13% | 1 | 1 |
| Overall | 14% | 6 | 7 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-22 03:09:28 UTC |
| Last Seen | 2026-06-09 17:46:54 UTC |
| Profile Built | 2026-06-09 17:55:44 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 18 |
Full dossier details are available via our API.