IP Diagnostics — Server Diagnostic Tool

Network

IP Diagnostics is a server-based utility that checks resolved addresses, ip versions, public routability, and reverse dns for a domain or ip from an entered domain or ip.

IP Diagnostics

Server lookupSSRF protected

Utillica checks only public URLs or domains from the server. Localhost, private IPs, internal networks, and metadata hosts are blocked, and raw API errors are hidden.

Domain or IP

What is it

IP Diagnostics fetches HTTP, DNS, robots.txt, sitemap, and Open Graph signals that are hard to inspect directly from a browser and summarizes them in a table. Localhost, private IPs, and internal networks are blocked for security, and results are a point-in-time reference.

Input URL or domain → server lookup → response status, headers, and metadata summary

How to use

1Enter the domain or ip.
2Press lookup.
3Review status codes, records, headers, or metadata.

Reference

IP Diagnostics — Server Diagnostic Tool Reference
Input	Result
domain or IP	checks resolved addresses, IP versions, public routability, and reverse DNS for a domain or IP

Sources & standards

HTTP Semantics - IETF
The robots.txt file format - IETF
Sitemaps XML protocol - Sitemaps.org
The Open Graph protocol - Open Graph protocol
WHOIS Protocol Specification - IETF
The Transport Layer Security (TLS) Protocol Version 1.3 - IETF

FAQ

Can IP Diagnostics check localhost?

No. Localhost, private IPs, and internal network addresses are blocked to prevent server-side request forgery.

Are IP Diagnostics results live?

They are fetched by the server at request time. DNS, caches, redirects, and target server policies can change the result.