PLUS23.GUARD.FRAMEWORK

General security and network utility framework

Version 6.8.1 DE EN PLUS23.ORG

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Overview Connection Data Recently Used

ASCII Base64 ROT13 URL Encoding

IP to Decimal IP to Host Host to IP IP Range to CIDR CIDR to IP Range

Encrypt / Decrypt Text Generators

Generate Hashes Compare Hash

DNS Check Reverse DNS Port Check Country Check WHOIS Check Blacklist Check Subdomain Discovery

JSON Formatter / Validator Regex Tester JWT Decoder Unix Timestamp Converter HTML Escape / Unescape URL Parser HTTP Request Builder cURL Generator API Request Tester Color Converter QR Code Generator

Website Check Link Checker Domain & Mail Analysis Cookie Check HTTP Headers SSL Certificate

Available

Reverse DNS

This tool is connected to the internal API and ready to use.

Result

Reverse DNS

What is Reverse DNS?

Reverse DNS retrieves the publicly configured hostname for an IPv4 or IPv6 address by querying its PTR record.

Purpose

The tool helps inspect servers, mail servers, and network connections. PTR records are commonly used to identify an IP address.

Accepted Input

IPv4 address
IPv6 address

Examples

8.8.8.8
2001:4860:4860::8888

Result

The result shows the checked IP address and its PTR hostname. If no PTR record exists, the tool displays a clear notice.

Notes

Not every IP address has a PTR record. This does not indicate a technical error in the tool.

PLUS23.NAVIGATOR

Further information and tools are available in Open PLUS23.NAVIGATOR.

PLUS23.GUARD.FRAMEWORK · General Security and Network Utilities · PLUS23.CYBER.SECURITY