Real-time domain threat scoring and analysis
Check any domain against 50+ threat intelligence sources in milliseconds. Get comprehensive risk scores, threat categories, and historical reputation data.
Get instant threat analysis with risk scores, threat categories, and detailed reports.
Everything you need to protect your infrastructure and users
Aggregate threat data from 50+ commercial and open-source feeds for comprehensive coverage.
Get instant risk scores with detailed breakdown of threat indicators and confidence levels.
Identify specific threat types: malware, phishing, spam, C2, cryptomining, and more.
Enrich results with domain registration data, age, and ownership information.
Access reputation history to see how a domain's risk profile has changed over time.
Check thousands of domains at once with our high-throughput bulk API.
How security teams use this tool
Check sender domains and URLs in real-time to block phishing attempts.
Prevent users from accessing malicious websites by checking domains at the proxy level.
Enrich security alerts with domain reputation data for faster triage.
Identify suspicious domains during account registration and transactions.
Domain reputation is a security scoring system that evaluates the trustworthiness and safety of domain names based on historical behavior, associations, and threat intelligence data. A domain's reputation score reflects whether it has been involved in malicious activities such as malware distribution, phishing campaigns, spam operations, or command-and-control communications. Security teams use domain reputation to make real-time decisions about blocking or allowing network traffic, filtering emails, and protecting users from web-based threats.
Our domain reputation system aggregates data from over 50 threat intelligence sources, including commercial feeds, open-source blocklists, honeypot networks, and proprietary detection systems. When you query a domain, we cross-reference it against known indicators of compromise (IOCs), analyze its DNS history, check registration patterns, and evaluate its hosting infrastructure. Machine learning models process these signals to generate a comprehensive risk score with confidence levels, allowing you to fine-tune your security policies based on your organization's risk tolerance.
Malicious domains come in many forms: phishing domains impersonate legitimate brands to steal credentials, malware distribution domains host exploit kits and drive-by downloads, spam domains send bulk unsolicited email, C2 (command-and-control) domains coordinate botnet operations, cryptojacking domains mine cryptocurrency using visitors' resources, and typosquatting domains exploit common typing errors to deceive users. Our detection system identifies and categorizes each threat type, providing actionable intelligence for your security stack.
Newly registered domains (NRDs) present elevated security risks because attackers frequently register fresh domains to evade blocklists and reputation systems. Research shows that over 70% of malicious domains are used within 30 days of registration. Our system flags NRDs automatically and provides domain age information, allowing you to implement policies that scrutinize or block communications with recently registered domains until they establish a legitimate track record.
Learn more from our security research blog
Join thousands of security teams using isMalicious to protect their infrastructure.