Professional-grade domain management tools at your fingertips. Check WHOIS data, verify DNS records, validate SSL certificates, test domain availability, and calculate domain age -- all completely free and powered by real-time lookups.
Retrieve detailed WHOIS registration data for any domain name. Find out registrar information, creation date, expiry date, nameservers, and registrant details. WHOIS data is essential for domain research, intellectual property investigations, and verifying domain ownership before acquisition.
Instantly check if a domain name is available for registration across multiple TLD extensions. Our availability checker tests popular extensions including .com, .net, .org, .io, .co, .dev, .app, and many more. Perfect for brainstorming your next domain purchase or checking brand availability across extensions.
View complete DNS records for any domain including A, AAAA, CNAME, MX, NS, TXT, and SOA records. Understanding DNS records is critical for troubleshooting email delivery issues, verifying domain configuration, checking CDN setup, and auditing security records like SPF, DKIM, and DMARC. Our tool queries authoritative DNS servers in real-time.
Validate SSL/TLS certificates for any website. Check certificate issuer, validity dates, encryption strength, and certificate chain integrity. An expired or misconfigured SSL certificate can cause browser warnings that drive visitors away and hurt your search engine rankings. Use this tool to monitor your certificates and ensure they are properly installed before expiration.
Calculate the exact age of any domain name. Domain age is a significant factor in SEO, domain valuation, and trust assessment. Older domains generally carry more authority in search engine algorithms. This tool calculates years, months, and days since registration, plus shows the exact creation date, making it invaluable for domain investors and SEO professionals.
Inspect HTTP response headers for any URL. Check security headers like Content-Security-Policy, X-Frame-Options, Strict-Transport-Security, and more. HTTP headers reveal critical information about server configuration, caching policies, and security posture. Security researchers and web developers use header analysis to identify misconfigurations and vulnerabilities.
Domain management is a critical aspect of maintaining a successful online presence. Whether you are a web developer, SEO professional, domain investor, or business owner, having access to reliable domain tools can save you hours of troubleshooting and thousands of dollars in potential losses from expired certificates or misconfigured DNS records.
WHOIS Data provides the registration history and ownership details of a domain. Under ICANN regulations, registrars must maintain accurate WHOIS records. However, many registrants now use privacy protection services, which replace personal information with proxy details. Our WHOIS lookup tool retrieves whatever data is publicly available from the registrar's WHOIS server.
DNS Records are the backbone of the internet's addressing system. A records map domains to IPv4 addresses, AAAA records handle IPv6, MX records direct email, and TXT records store verification data for services like Google Workspace, SPF email authentication, and DMARC policies. Misconfigured DNS records are one of the most common causes of website downtime and email delivery failures.
SSL Certificates encrypt data between browsers and servers. Since Google made HTTPS a ranking factor and browsers began showing "Not Secure" warnings for HTTP sites, SSL has become mandatory for every website. Certificate authorities like Let's Encrypt have made free certificates available, but monitoring expiration dates remains essential to avoid service disruptions.