OnlineCorners

DNS & Network Tools

Validate DNS configuration, propagation, DNSSEC, IPv6 support, CAA records, and network infrastructure.

7 tools in this category

DNS Propagation

Checks DNS resolution across Google, Cloudflare, Quad9, and more.

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DNSSEC

Checks if DNSSEC is enabled and DNS responses are validated.

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Reverse DNS (PTR)

Checks the PTR record for the domain's IP address.

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Nameserver Health

Pings all nameservers and checks response times.

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ASN Lookup

Returns ASN, ISP, hosting provider, and server location.

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CAA Record

Checks Certificate Authority Authorization records to see which CAs can issue SSL certs.

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IPv6 Support

Checks if the domain has AAAA records and supports IPv6 connections.

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