isMalicious vs. the alternatives

Shodan indexes internet-connected devices and exposes their open ports, banners and vulnerability data.

• Device discovery

AlienVault OTX (Open Threat Exchange) is a community platform where researchers share threat data as "pulses".

• Community TI

URLhaus is a free abuse.ch project that tracks malware distribution URLs.

• Malware URL feed

Spamhaus operates widely used DNS blocklists (DROP, EDROP, SBL) for spam and malicious IP blocking.

• DNS blocklists

IPQualityScore (IPQS) provides fraud detection APIs that flag proxies, VPNs, bots, disposable emails and high-risk IPs, combining IP reputation with device fingerprinting.

• Fraud detection
• +4 features isMalicious adds

Censys indexes internet-facing hosts, certificates and services so teams can find exposed assets and investigate infrastructure.

• Asset & certificate search
• +7 features isMalicious adds

IPinfo provides IP geolocation, ASN, carrier and privacy context (VPN, proxy, hosting) through a developer API.

• IP geolocation API
• +9 features isMalicious adds

Criminal IP is a threat intelligence search engine that maps malicious IPs, domains, certificates and banners, with search and scoring built for analysts.

• Threat search engine
• +3 features isMalicious adds

SecurityTrails (now part of Recorded Future) provides historical DNS, subdomain discovery, WHOIS and domain intelligence, mainly for domain research and attack surface mapping.

• DNS intelligence
• +7 features isMalicious adds

Pulsedive supports indicator research, enrichment APIs, bulk exports and STIX 2.1 objects delivered over TAXII 2.1.

• Community TI

Cisco Talos is the threat intelligence group behind Cisco security products.

• Cisco reputation feeds
• +2 features isMalicious adds

Hybrid Analysis (by CrowdStrike) is a free community sandbox where files and URLs are detonated for behavioral analysis and YARA-style insights.

• Malware sandbox
• +5 features isMalicious adds

ANY.RUN is an interactive online sandbox where analysts watch malware execute as it happens, built for hands-on malware analysis.

• Interactive sandbox
• +6 features isMalicious adds

Cloudflare Radar publishes internet traffic insights, DNS query trends and outage data from Cloudflare's network.

• Internet insights
• +6 features isMalicious adds