Sources behind the proxy detection comparison
Product pages establish scope; documentation explains fields and integration; vendor guides add implementation context. Each source names its role and reading date.
ShieldLabs
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
IPQualityScore
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
Fingerprint
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
IPinfo
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
Spur
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
MaxMind
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
proxycheck.io
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
ipregistry
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
ipgeolocation.io
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
IP2Location
Evidence used in the review.
- Product and detection approach · checked October 23, 2026
- Pricing and access · checked October 23, 2026
- Integration and result documentation · checked October 23, 2026
- Vendor guide and product context · checked October 23, 2026
Primary network references
- MDN: trusted forwarding-header handling
- RFC 6598: shared address space for carrier-grade NAT
- Apple: iCloud Private Relay
These explain mechanisms, not vendor accuracy.