136.81.100.99
136.81.100.99 is an IPv4 address operated by GOOGLE-CLOUD-PLATFORM - Google LLC, US (AS396982), with approximate network location New York, United States. It belongs to datacenter or hosting infrastructure with reverse DNS name 99.100.81.136.bc.googleusercontent.com. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Google LLC |
| ASN | AS396982 |
| Network Name | GOOGL-2 |
| CIDR Block | 136.64.0.0/11 |
| RIR | ARIN |
| Network registration country | United States |
| Routing operator | GOOGLE-CLOUD-PLATFORM - Google LLC, US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 99.100.81.136.bc.googleusercontent.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
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 | Not checked |
| spf | Not checked |
| dmarc | Not checked |
| dnssec | Not checked |
| fcrDns | Not checked |
☁️ 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
| Port | Probe target | Certificate finding |
|---|---|---|
| (IP-targeted) | CN=eu.internal.tctn.cloud.remarkable.com Historical certificate; current certificate unknown |
| SANs | eu.internal.tctn.cloud.remarkable.com |
| Valid From | 2026-10-07T13:30:28+00:00 |
| Valid Until | 2027-01-05T14:25:03+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 90 days |
🛡️ Public Network Snapshot
| Origin ASN | AS396982 |
| Network Prefix | 136.64.0.0/11 |
| 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 | 30% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 31% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 4 |
| geolocation | 35% | 2 | 3 |
| Overall | 26% | 10 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Aging
| First Seen | 2026-10-12 21:26:29 UTC |
| Last Seen | 2026-11-04 02:07:14 UTC |
| Profile Built | 2026-11-13 07:27:22 UTC |
| Data Freshness | Aging |
| Signal Types | 23 |
| Total Observations | 28 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 136.81.100.99
Who owns the IP address 136.81.100.99?
136.81.100.99 is registered to Google LLC. The address falls within the 136.64.0.0/11 network block. Registration is held at ARIN.
Where is 136.81.100.99 located?
Geolocation data places 136.81.100.99 in New York. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 136.81.100.99 malicious or safe?
136.81.100.99 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 136.81.100.99?
The reverse DNS (PTR) record for 136.81.100.99 is 99.100.81.136.bc.googleusercontent.com. This hostname is not forward-confirmed, so it should be treated as a weak signal.
What ports are open on 136.81.100.99?
Responsive ports observed on 136.81.100.99 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 136.81.100.99 a VPN, proxy, or data center address?
136.81.100.99 is classified as cloud infrastructure based on network ownership and behavioural analysis.