12 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.

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

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

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

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

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

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

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

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

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

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

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

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

Automate Your Infrastructure Monitoring

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