172.217.21.238
172.217.21.238 is an IPv4 address operated by GOOGLE - Google LLC, US (AS15169), with approximate network location New York, United States. Its reverse DNS name is lcsofa-ao-in-f14.1e100.net. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Google LLC |
| ASN | AS15169 |
| Network Name | |
| CIDR Block | 172.217.0.0/16 |
| RIR | ARIN |
| Network registration country | United States |
| Routing operator | GOOGLE - Google LLC, US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | lcsofa-ao-in-f14.1e100.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | lcsofa-ao-in-f14.1e100.net |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| caa | Present / verified 1e100.net |
| spf | Unknown / lookup inconclusive invalid2.invalid, lcsofa-ao-in-f14.1e100.net |
| dmarc | Unknown / lookup inconclusive _dmarc.invalid2.invalid, _dmarc.lcsofa-ao-in-f14.1e100.net |
| dnssec | Unknown / lookup inconclusive 238.21.217.172.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive lcsofa-ao-in-f14.1e100.net |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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
| Port | Probe target | Certificate finding |
|---|---|---|
| (IP-targeted) | CN=invalid2.invalid, OU=No SNI provided - please fix your client. Historical certificate; current certificate unknown |
| SANs | invalid2.invalid |
| Valid From | 2026-10-07T20:12:16+00:00 |
| Valid Until | 2026-12-30T20:12:15+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 83 days |
🛡️ Public Network Snapshot
| Origin ASN | AS15169 |
| Network Prefix | 172.217.21.0/24 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-04 03:11:02 UTC |
| Last Seen | 2026-11-07 22:05:01 UTC |
| Profile Built | 2026-11-13 08:47:30 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 172.217.21.238
Who owns the IP address 172.217.21.238?
172.217.21.238 is registered to Google LLC. The address falls within the 172.217.0.0/16 network block. Registration is held at ARIN.
Where is 172.217.21.238 located?
Geolocation data places 172.217.21.238 in New York. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 172.217.21.238 malicious or safe?
172.217.21.238 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 172.217.21.238?
The reverse DNS (PTR) record for 172.217.21.238 is lcsofa-ao-in-f14.1e100.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 172.217.21.238?
Responsive ports observed on 172.217.21.238 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.