168.100.149.132
IP Intelligence Briefing: 168.100.149.132
Date: 2026-06-09
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**1. Core Profile**
- Risk Score: 50 (Moderate Risk)
- Ownership:
- ASN: 140577
- Organization: Ahrefs Pte Ltd (AS: AHREFS-US)
- Geolocation: Ashburn, VA, US (Latitude: 39.05, Longitude: -77.49)
- Network Role: Firewalled / No Services (No open ports, TLS, or HTTP detected)
- DNS:
- PTR Hostname: `proxy-us002-san32.ahrefs.net`
- Domain: `ahrefs.net` (no email auth records)
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**2. Threat & Behavior**
- Threat Indicators:
- No malicious indicators, spam, or known attacker associations.
- DNSBL Listings: 2/8 total lists (low priority).
- Observation History (Last 30 Days):
- Stable ownership (no changes).
- No persistent malicious activity or threat observations.
- Risk scores fluctuated but remained below high-risk thresholds.
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**3. Relationships & Network**
- Linked Entities:
- DNS: `proxy-us002-san32.ahrefs.net` (repeatedly resolved).
- Same Network: `AHREFS-US` (AS: 140577).
- Neighborhood Analysis:
- Subnet: 168.100.149.0/24 (100 total IPs).
- Abuse Density: 0% (low risk).
- Active Siblings: 0 (no neighboring IPs flagged as risky).
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**4. Recommendations**
- Firewall Rules (Example):
- iptables: `iptables -A INPUT -s 168.100.149.132 -j DROP`
- Cloudflare WAF: Block IP with rule `{ "action": "block", "expression": "ip.src eq 168.100.149.132" }`
- Action Notes:
- Moderate risk score suggests monitoring, but no immediate mitigation required.
- Verify if the IP is part of legitimate Ahrefs infrastructure (no signs of spoofing).
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**5. Summary**
The IP 168.100.149.132 is associated with Ahrefs Pte Ltd and located in Ashburn, VA. It shows no malicious behavior, no threat indicators, and is part of a low-risk subnet. While the moderate risk score warrants observation, no urgent action is required. Monitor for unexpected DNS or network changes.
Next Steps: Cross-reference with internal threat feeds and confirm if the IP is part of expected Ahrefs infrastructure.
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-US |
| CIDR Block | 168.100.144.0/20 |
| RIR | ARIN |
| Country | US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-us002-san32.ahrefs.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | proxy-us002-san32.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 | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| 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 | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-21 14:56:26 UTC |
| Last Seen | 2026-06-10 02:36:51 UTC |
| Profile Built | 2026-06-09 10:53:59 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 20 |
Full dossier details are available via our API.