The Best Proxy Check Alternatives in 2026

IP Intelligence detects proxies and VPN connections through an API intended to help prevent fraud.

The Hitch proxy handles TLS connections for Varnish and is described by its project as open source.

IPv6 Leak Test checks whether a device has IPv6 connectivity and displays connection information related to privacy.

Terminate TLS connections through Hitch, a scalable TLS proxy from Varnish Software.

Snyk helps software teams identify and manage security risks in code and dependencies while building AI-enabled applications.

Kismet monitors and captures Wi-Fi network traffic, with wireless intrusion detection and wardriving features.

Facia provides deepfake and liveness detection for identity verification and authentication.

Manage Windows Firewall rules and receive outbound connection notifications with Windows Firewall Control.

WhatsMyDNS checks DNS record propagation across global resolvers for record types including A, AAAA, MX, and TXT.

Check browser fingerprints and run DNS leak, IP, port, and WebRTC tests with BrowserScan.

Spur analyzes internet infrastructure and network signals to help investigators interpret obfuscated connections.

Check the Toronto Hydro outage map for electricity service disruptions.

Manage two-factor authentication codes with OTP Auth, an iOS app listed on the App Store.

Generate secure SSL configurations for selected web, database, and mail software.

Solve reverse engineering challenges published on challenges.re, a challenge-focused site.

GoPlus offers Web3 security tools including audits, APIs, a user security hub, and a browser extension.

Search the National Vulnerability Database, a public resource for vulnerability information.

View Toronto Police calls for service on a map that updates in real time, according to the supplied page description.

Add proof-of-work verification to websites with mCaptcha, a privacy-focused automated CAPTCHA system.

Use Metasploit to find security issues, verify mitigations, and manage authorized penetration testing assessments.

The Snyk Security Database provides vulnerability details and remediation guidance for packages and cloud configurations.

The URL Decoder and Encoder converts text between encoded and decoded forms, including JavaScript URLs.

Lucia was deprecated in March 2025. The website was updated in July 2026 and points to code/auth_session.ts as a single-file replacement for the NPM package and to the Auth Book for auth information.

DNSPerf compares the performance and uptime of enterprise and commercial DNS providers.