Discover Monitoring
You can't secure what you don't know about. RedGem continuously discovers and inventories your external attack surface — domains, subdomains, IPs, open ports, web services, and SSL certificates — then watches them around the clock and alerts you the moment anything new appears or changes.
Discover
Monitor and manage your attack surface discoveries
acme-corp.com
about 2 hours ago
acme-cloud.io
about 3 hours ago
shopacme.com
about 3 hours ago
acme-pay.com
about 4 hours ago
getacme.io
about 4 hours ago
acmecdn.net
about 5 hours ago
Comprehensive Asset Discovery
Automated discovery and continuous monitoring of your digital assets
Subdomain Inventory
Continuously discovers new subdomains and keeps an up-to-date inventory, flagging any that appear or disappear.
IP & Port Inventory
Tracks the public IPs behind your subdomains and the open ports and services on each — alerting when a new one comes online.
Web Service Monitoring
Watches your web services for changes to server type, technologies, response codes, and home-page titles.
SSL Certificate Monitoring
Checks SSL/TLS certificates across your assets and warns you well before they expire or change unexpectedly.
Change Detection & Alerts
Real-time notifications the instant a new asset is discovered or an existing one changes — via Telegram, Slack, Teams, email, or webhook.
IP OSINT
Checks OSINT sources for your IP assignments and surfaces other domains sharing your infrastructure.
See Every Change as It Happens
RedGem diffs every scan against the previous one, so you hear about a new subdomain, a freshly opened port, an expiring certificate, or a technology swap before an attacker does — routed to the channels your team already uses.
New subdomain
12m agostaging-api.acme-corp.com
First seen · resolves to 91.76.180.216
Port opened
1h agovpn.acme-corp.com
TCP 3389 (RDP) now open
SSL expiring
3h agoshopacme.com
Certificate expires in 9 days
Technology changed
5h agogetacme.io
nginx 1.21 → 1.25 · added Cloudflare
New IP
7h agoacme-internal.net
New host 183.97.222.87 (DigitalOcean)
Title changed
9h agoacme-pay.com
Home page title changed
Advanced Discovery Methods
Multiple techniques for comprehensive asset discovery
Passive Discovery
Certificate Transparency
Monitor CT logs for new certificate issuances
DNS Records
Analyze DNS records and zone transfers
WHOIS Data
Extract information from WHOIS databases
Search Engine Intel
Leverage search engines for asset discovery
Active Discovery
Subdomain Enumeration
Active brute-force and wordlist-based discovery
Port Scanning
Discover services running on found assets
Web Technology Detection
Identify web technologies and frameworks
Asset Verification
Verify and validate discovered assets
How Discover Monitoring Works
Automated workflow for continuous asset discovery and monitoring
Define Scope
Set up monitoring targets including domains, IP ranges, and keywords
Initial Discovery
Comprehensive initial scan to discover all existing assets
Continuous Monitoring
Ongoing monitoring for changes and new asset discovery
Alert & Report
Real-time alerts and detailed reports on discovered assets
Gain Complete Asset Visibility
Start discovering and monitoring your digital assets with comprehensive coverage and real-time updates.
Begin Discovery