All Network Tools

See your public IPv4/IPv6 address, network, and connection details.

Look up any IP: version, type, network, registry data, and reverse DNS.

Query A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV and PTR records.

Compare DNS answers across multiple public resolvers to spot inconsistencies.

Calculate network, broadcast, masks, ranges and host counts for IPv4/IPv6.

Validate and classify single or bulk IPv4/IPv6 addresses — no network calls.

Structured registration data for domains, IPs and ASNs via RDAP.

Check MX, SPF, DMARC and DKIM records and get a mail-DNS health summary.

Inspect response status, redirect chain and HTTP headers for any public URL.

Review CSP, HSTS, and other HTTP security headers for a public URL.

Find the PTR record for an IPv4 or IPv6 address.

Convert IP addresses between decimal, integer, binary, hex and IPv6 forms.

Parse and validate a domain’s SPF record mechanisms and qualifiers.

Parse a domain’s DMARC policy and explain each tag.

Break a URL into scheme, host, port, path, query and fragment — in your browser.

Validate a hostname label-by-label with IDN/Punycode analysis.

Measure HTTP response time for a public URL across several samples.

Encode or decode text to and from Base64 and Base64URL, with correct UTF-8 handling.

Convert between Unix timestamps and human-readable UTC/local dates.

Look up the IPv4 (A) records a hostname resolves to.

Look up the IPv6 (AAAA) records a hostname resolves to.

Look up the mail servers (MX records) that accept email for a domain.

Look up a domain’s TXT records, including SPF, DKIM, DMARC and verification strings.

Look up the authoritative name servers (NS records) for a domain.

Look up the canonical name (CNAME) a hostname is aliased to.

Look up a zone’s Start of Authority (SOA) record and its timers.

Check which certificate authorities may issue certificates for a domain (CAA).

Look up the host, port, priority and weight for a service (SRV record).