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We offer a selection of 8 free tools in the category Network & DNS. Every tool processes results in real-time.
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DNS Traversal (Trace)
Traces the DNS resolution path from root servers to the authoritative name server.
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Subnet Calculator
Calculates IP networks, CIDR masks, host ranges, and broadcast addresses.
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HTTP Header Check
Reads all HTTP response headers of a web address and analyzes their status.
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WHOIS & RDAP Lookup
Queries registration data, expiration date, and name servers of a domain (prefers RDAP).
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HTTP/2 & HTTP/3 Protocol Check
Checks support for HTTP/2 and HTTP/3 (QUIC) as well as ALPN latencies.
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Whitelisted Port Scanner
Scans 15 standard ports for open services to avoid security risks.
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