Network Tools — IP Location, DNS, WHOIS, SSL and HTTP Header Checks

Look up IP locations, DNS records, WHOIS and SSL certificates, trace redirects and response headers, preview link cards and check a domain’s SPF and DMARC.

• 📍IP What Is My IP Address? See your current public IP address with its country, region, city and ISP as soon as the page opens, or enter another IPv4 or IPv6 address to find where it is.
• 🌐DNS DNS Lookup Query a domain’s DNS records and TTLs to check website, email and certificate settings.
• 🔎WHO WHOIS Lookup Enter a domain to see its registrar, registration and expiry dates, status and name servers — to check when it expires, whether transfers are locked, or whether it is registered at all.
• 🛡️SSL SSL Certificate Checker Enter a domain to check whether its HTTPS certificate is valid, how many days it has left, who issued it, which names it covers and whether the server sends the full chain — useful before and after renewals.
• 📨HTTP HTTP Header and Redirect Checker Enter a URL to follow its redirects hop by hop and see each status code, response headers and timing, plus where it finally lands — for debugging HTTP-to-HTTPS and www redirects, loops, caching and security headers, or expanding short links.
• 🔖OG Open Graph and Meta Tag Checker Enter a URL to read its title, description, Open Graph and Twitter Card tags, preview how it appears in search results, large social cards and chat link previews, and find problems such as a missing share image, an overlong title, no canonical URL or an accidental noindex.
• 📧✓ SPF, DKIM, DMARC and MX Checker Enter a domain or an email address to look up its MX mail servers, SPF, DKIM and DMARC records in one go and check them for common mistakes — useful when mail lands in spam, when someone is spoofing your domain, or when you need to meet Gmail and Yahoo sender requirements.
• 🌐✓ DNS Propagation Checker After changing an A, CNAME or MX record, check whether the new value is live.
• 🔌 Open Port Checker Our server makes a TCP connection to the address you enter to see whether each port can be reached from the internet.
• 🛡️PEM SSL Certificate Decoder Paste a certificate (starting with -----BEGIN CERTIFICATE-----) to see what is inside — the names it covers, when it expires, who issued it and whether it is DV or OV.
• 🛡️CSR CSR Generator Certificate authorities ask for a CSR when you order an SSL certificate.
• ⏬Mbps Download Time Calculator How long will a 50 GB game take on a 300 Mbps line?