IPLogs vs IPQualityScore
IPLogs is a free, no-signup VPN/proxy/Tor detection service that returns every matching signal and publishes its false-positive rate. IPQualityScore (IPQS) is a paid, all-in-one fraud-prevention suite that also scores email, phone, and transactions behind a proprietary risk model. Pick IPLogs for transparent IP detection; pick IPQS for a full fraud platform.
What IPQualityScore is
IPQualityScore is a commercial fraud-prevention platform. Beyond IP reputation it covers email validation, phone validation, transaction scoring, and device fingerprinting, surfaced as a single proprietary fraud score with enterprise plans and SLAs. Its IP detection is one module inside a broader anti-fraud suite, and using the API requires a signup and key.
Pricing, free-tier limits, and feature sets change. Verify current details on IPQualityScore before deciding. This page reflects publicly documented behavior as of 2026-05-21.
Side-by-side
| Capability | IPLogs | IPQualityScore |
|---|---|---|
| Free tier for VPN/proxy detection | Unlimited, fair-use | Limited monthly lookups on free plan |
| Signup / API key required | No signup, no key | Account + API key |
| Per-signal provenance returned | Every matching feed/probe listed | Proprietary fraud score + some flags |
| Published false-positive rate | 0.3% on a Cymru-validated corpus | Not published |
| Open detection methodology | Documented sources + weights | Proprietary model |
| Active protocol probing | OpenVPN/WireGuard/IKEv2/REALITY | Not a stated feature |
| Broader fraud suite (email/phone/txn) | IP detection only | Email, phone, transaction, device |
| Enterprise SLA / support | Email; no formal SLA | Paid enterprise SLAs |
When to choose IPLogs
- You want free VPN/proxy/Tor detection with no signup or API key.
- You need to see exactly which feeds and probes matched an IP, not just a score.
- A published, falsifiable false-positive rate matters to your risk team.
- You want IPv6-first detection and active protocol probing.
When to choose IPQualityScore
- You need an all-in-one fraud platform spanning email, phone, transaction, and device signals.
- You require contractual enterprise SLAs and dedicated support.
- A single proprietary fraud score fits your workflow better than per-signal data.
See the numbers
IPLogs publishes its detection accuracy openly: 0.3% false-positive rate on a Cymru-validated corpus. For live, head-to-head API responses across six vendors on controlled test IPs, see the empirical VPN-detection API test.
FAQ
Is IPLogs a free alternative to IPQualityScore?
For IP-level VPN, proxy, and Tor detection, yes. IPLogs is free with no signup and returns every matching signal plus a published false-positive rate. It does not replace IPQualityScore's broader fraud suite (email, phone, and transaction scoring), which IPLogs does not offer.
What does IPLogs do that IPQualityScore doesn't?
IPLogs returns per-signal provenance (every feed and probe that matched), publishes a 0.3% false-positive rate on a validated corpus, documents its detection methodology openly, and requires no signup or API key. IPQualityScore surfaces a proprietary fraud score instead.
What does IPQualityScore do that IPLogs doesn't?
IPQualityScore is a full fraud-prevention suite: email validation, phone validation, transaction risk scoring, and device fingerprinting, with enterprise SLAs. IPLogs focuses only on IP-level VPN/proxy/Tor/datacenter detection.