Home Features Pricing Network Map Monitoring

Diag Tools

HTTP Check Ping Test DNS Lookup SSL Certificate WHOIS Lookup Port Check IP Lookup Offline Tools My Check History

Advanced Tools Minimal interface

Home Features Pricing Network Map Monitoring

Diag Tools

Minimal interface

Home Diagnostic Tools Offline Tools Email Auth & DNS Reverse-DNS / PTR Name Generator

Reverse-DNS / PTR Name Generator

Turn an IPv4 or IPv6 address or CIDR into its in-addr.arpa / ip6.arpa reverse name or zone.

This interactive tool needs JavaScript enabled. For a static overview of Emercom's free network tools, see the tool guides.

Status pages and uptime monitoring that actually works. Keep your customers informed and your services running.

Diagnostic Tools

HTTP Check
Ping Test
DNS Lookup
SSL Certificate
WHOIS Lookup
Port Check
IP Lookup

Resources

Dashboard
Diagnostic Tools
Uptime Monitoring
Pricing
Network Map
Product News
Support

Emercom. Next-Generation Emergency Communication and Management Platform.
© 2025-2026 emercom.io. All rights reserved.

Cookie policy

Emercom uses cookies and browser storage for analytics, advertising measurement, session replay and live chat. Essential cookies stay on either way. Our own cookieless page-view counter runs until you switch it off under Manage, and you can change your choice later under Cookie settings.

Cookie policy

Cookie settings

Choose what to allow. Essential cookies keep you signed in and protect forms; they are always on.

Analytics

Google Analytics measures how pages are used. Until you allow it, Google receives cookieless pings only.

Advertising

Google Ads measures whether an ad brought you here. Until you allow it, no advertising cookies are set.

Session replay

OpenReplay, run by Emercom, records what the page shows and how you use it: page content, clicks, scrolling and page changes. Text typed into forms is masked and passwords are never recorded. Emercom support can also watch a session live to help you; a call or screen control asks you first. If you are signed in to the dashboard, the recording carries your account email.

Live chat

Chatwoot, run by Emercom, powers the support chat and sets a cookie so a conversation continues across pages.

Umami

Umami, run by Emercom, counts page views without cookies. It is on by default. You can turn it off here.