# IP Intelligence Briefing: 198.244.242.157
## Executive Summary
IP address 198.244.242.157 is registered to Ahrefs Pte Ltd and operates on OVH cloud infrastructure in London, GB. Current risk assessment indicates moderate risk (score: 50/100) with no active threat indicators but elevated neighborhood abuse density.
## Technical Profile
Ownership & Geolocation:
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd Dmytro
- Location: London, England, GB (accuracy: 750km radius)
- RIR: ARIN
Network Role Classification:
- Infrastructure Type: CloudCompute
- Provider: OVH
- Status: Cloud-hosted infrastructure with hosting services enabled
- Service Status: Firewalled / No open ports detected
DNS Configuration:
- PTR Hostname: proxy-uk007-san157.ahrefs.net
- Forward Resolution: 1 hostname (forward confirmed: false)
- CAA Records: Present
- DNSSEC: Valid
## Threat Indicators
Current Status:
- Blacklist Count: 0
- Known Campaigns: None
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
Abuse Signals:
- DNSBL Listings: 2 of 8 total lists (control plane data)
- Abuse Confidence Score: Null
- Historical high-severity DNSBL listing observed (June 28, 2026)
## Neighborhood Analysis
Subnet: 198.244.242.0/24
- Abuse Density Classification: High abuse (0.6523)
- Total Siblings: 256
- Active Siblings: 219
- Threat Siblings: 167
- Inherited Risk Score: 26
Risk Distribution in /24:
- High Risk: 0
- Medium Risk: 53
- Low Risk: 47
Control Plane:
- BGP Prefix: 198.244.128.0/17
- Route Stability: False
- Route Changes (30d): 0
- RPKI State: Not assessed
## Observation History
Total Observations: 22
Recent Signals:
- June 28, 2026: Cloud infrastructure classification (OVH), DNSBL listings with high severity
- June 20, 2026: High abuse density classification noted, DNS records confirmed for ahrefs.net
Temporal Analysis:
- Ownership Changes: 0
- Threat Persistence Days: 0
- Is Persistently Malicious: No
- Threat Observation Count: 1
## Recommended Security Actions
Immediate Recommendations:
| System | Action |
|---|---|
| iptables | `iptables -A INPUT -s 198.244.242.157 -j DROP` |
| nftables | `nft add rule inet filter input ip saddr 198.244.242.157 drop` |
| nginx | `deny 198.244.242.157;` |
| pfSense | `198.244.242.157/32` |
| Cloudflare WAF | Block with expression: `ip.src eq 198.244.242.157` |
| AWS WAF | Add address `198.244.242.157/32` to whitelist/exclusion |
Assessment Notes:
- No open ports or services detected (infrastructure may be intentionally firewalled)
- High neighborhood abuse density warrants monitoring of adjacent IPs in /24
- Historical data indicates DNSBL activity requiring correlation with internal logs
- Cloud infrastructure classification suggests legitimate hosting but requires baseline traffic analysis
## Conclusion
IP 198.244.242.157 presents moderate risk primarily due to elevated neighborhood abuse density rather than direct threat indicators. SOC teams should monitor traffic patterns from this IP and consider blocking based on organizational policy. Correlate with internal logs to determine if the IP represents legitimate Ahrefs traffic or potential abuse.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | โ |
| CIDR Block | โ |
| RIR | ARIN |
| Country | โ |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | proxy-uk007-san157.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk007-san157.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-19 21:39:52 UTC |
| Last Seen | 2026-06-28 09:55:11 UTC |
| Profile Built | 2026-06-29 03:59:38 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
Full dossier details are available via our API.