173.194.133.73
173.194.133.73 is an IPv4 address operated by Google LLC (AS15169), geolocated to New York, United States. It belongs to datacenter or hosting infrastructure with reverse DNS name ord38s48-in-f9.1e100.net. As of November 5, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
This IP address is owned by Google LLC (ASN 15169) and utilizes Google cloud infrastructure with excellent DNS hygiene and valid SPF/DMARC configurations. Although the host is classified as "Hosting" with a low risk score of 25, it carries a "Suspicious Host" label due to present threat indicators without specific classification. The claimed Chicago geolocation contradicts RTT physics measurements indicating a distance of 7625.7km, which lowers attribution confidence to "Moderate". Consequently, the analysis recommends monitoring the asset for potential signal changes.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Google LLC |
| ASN | AS15169 |
| Network Name | |
| CIDR Block | 173.194.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ord38s48-in-f9.1e100.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ord38s48-in-f9.1e100.net |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | 8/8 domains |
| DMARC | 8/8 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
| Domains Checked | 8 domains |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.c.docs.google.com*.a1.googlevideo.com*.bdn.dev*.origin-test.bdn.dev*.c.2mdn.net*.c.bigcache.googleapis.com*.c.chat.google.com*.c.doc-0-0-sj.sj.googleusercontent.com*.c.drive.google.com*.c.googlesyndication.com |
| Valid From | 2026-10-13T12:30:56+00:00 |
| Valid Until | 2026-12-22T12:30:55+00:00 |
🛡️ Public Network Snapshot
| Origin ASN | AS15169 |
| Network Prefix | 173.194.128.0/20 |
| Route mapping | Found |
| Certificates in transparency logs | 0 certificates |
| 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 | 30% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 33% | 2 | 4 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 24% | 10 | 17 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-25 19:36:13 UTC |
| Last Seen | 2026-11-05 01:18:56 UTC |
| Profile Built | 2026-11-05 01:30:14 UTC |
| Data Freshness | Live |
| Signal Types | 26 |
| Total Observations | 41 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 173.194.133.73
Who owns the IP address 173.194.133.73?
173.194.133.73 is registered to Google LLC. The address falls within the 173.194.0.0/16 network block. Registration is held at ARIN.
Where is 173.194.133.73 located?
Geolocation data places 173.194.133.73 in New York, US-NY, United States. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 173.194.133.73 malicious or safe?
173.194.133.73 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 173.194.133.73?
The reverse DNS (PTR) record for 173.194.133.73 is ord38s48-in-f9.1e100.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 173.194.133.73?
Responsive ports observed on 173.194.133.73 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 173.194.133.73 a VPN, proxy, or data center address?
173.194.133.73 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.