22+ Free Tools — No Login Required

Free Infrastructure & Security Tools

Professional-grade tools for checking SSL certificates, IP addresses, DNS records, WHOIS data, and security headers — completely free.

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What's My IP

Instantly detect your public IPv4, IPv6, ISP, location, browser, and VPN status.

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SSL Checker

Validate SSL certificates, check expiry, chain of trust, and TLS grade in seconds.

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TLS Checker

Audit TLS versions and cipher suites — detect insecure TLS 1.0/1.1 and vulnerable configs.

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WHOIS Lookup

Instant domain registration data, expiry dates, registrar, and nameserver information via RDAP.

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DNS Lookup

Query DNS records: A, AAAA, MX, TXT, NS, CNAME, SOA. Full resolver output in real time.

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DNS Propagation Checker

Check DNS propagation across multiple global resolvers and see which regions have updated.

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Security Headers Checker

Analyse HTTP security headers: HSTS, CSP, X-Frame-Options, Permissions-Policy, and more.

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HTTP Header Checker

Inspect all raw HTTP response headers, status codes, redirects, and server information.

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Domain Expiry Checker

Check how many days until any domain expires. Get alerts before it lapses.

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DNSSEC Checker

Verify DNSSEC configuration, validate DNSKEY records, and detect DNS hijacking risks.

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DMARC & SPF Checker

Verify DMARC policy, SPF record, and DKIM signing — protect your domain from email spoofing.

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Uptime Checker

Instantly check if any website is online, its HTTP status code, and server response time.

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SPF Checker

Parse and validate SPF records. Detect misconfigurations, DNS lookup limits, and weak policies.

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DKIM Checker

Look up DKIM public key records, verify key size, and check for common DKIM misconfigurations.

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ASN Lookup

Look up any Autonomous System Number or IP. Find network owner, prefixes, and routing data.

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IP Reputation Checker

Check IP addresses against threat databases, spam blacklists, and abuse registries.

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Reverse DNS Lookup

Look up the PTR record for any IP address. Check FCrDNS for email deliverability.

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Port Scanner

Scan common TCP ports on any domain or IP. Check HTTP, SSH, database, and mail ports.

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CSP Validator

Parse and validate Content Security Policy headers. Detect unsafe directives and get recommendations.

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HSTS Checker

Check HTTP Strict Transport Security configuration. Verify max-age, subdomains, and preload status.

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Interactive

SSL Risk Calculator

Calculate your SSL expiry risk score based on days remaining, cert type, auto-renewal, and monitoring.

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Interactive

TLS Score Simulator

Simulate your TLS security grade. Select your configuration and see your score update in real time.

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Automate Your Infrastructure Monitoring

Stop checking manually. Get automated SSL, domain, and DNS alerts before things break.

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