101.101.101.101
101.101.101.101 is an IPv4 address operated by TWNIC ROLE-TWNIC (AS131644), geolocated to Taiwan. It is known as Quad101 DNS. Its reverse DNS name is twnic-public-dns.twnic.tw. As of November 6, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
⭐ Quad101 DNS
Taiwan Network Information Center public DNS resolver — operated by TWNIC.
🏢 Ownership & Registration
| Organization | TWNIC ROLE-TWNIC |
| ASN | AS131644 |
| Network Name | TWNIC-NET |
| CIDR Block | 101.101.101.0/24 |
| RIR | APNIC |
| Country | TW |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | twnic-public-dns.twnic.tw |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | twnic-public-dns.twnic.tw |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS131644 |
| Network Prefix | 101.101.101.0/24 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 2 |
| routing | 25% | 1 | 1 |
| services | 35% | 2 | 2 |
| ownership | 50% | 2 | 3 |
| reputation | 25% | 1 | 1 |
| geolocation | 50% | 2 | 3 |
| Overall | 36% | 10 | 12 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-06 23:26:02 UTC |
| Last Seen | 2026-11-06 23:26:02 UTC |
| Profile Built | 2026-11-06 23:33:18 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 17 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 101.101.101.101
Who owns the IP address 101.101.101.101?
101.101.101.101 is registered to TWNIC ROLE-TWNIC. The address falls within the 101.101.101.0/24 network block. Registration is held at APNIC.
Where is 101.101.101.101 located?
Geolocation data places 101.101.101.101 in Taiwan. The local time zone is Asia/Taipei. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 101.101.101.101 malicious or safe?
101.101.101.101 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 101.101.101.101?
The reverse DNS (PTR) record for 101.101.101.101 is twnic-public-dns.twnic.tw. This hostname is forward-confirmed, meaning it resolves back to the same address.