Best ThreatSTOP IP Defense Alternatives & Competitors in 2026

CybersecRadars

Cybersecurity market intelligence platform for tracking competitors & funding

IPQS Proxy Detection Database

Database for detecting proxies, VPNs, Tor nodes, and high-risk IP addresses

IPQS IP Address Block List

IP address blocklist service for identifying and blocking fraudulent IPs

SecurityTrails API™

API providing historical & current DNS, WHOIS, and domain intelligence data.

MaxMind IP Geolocation API

API service providing IP geolocation data and intelligence for security use cases

IPQS IP Address Abuse Feed

Daily threat intel feed identifying malicious IPs with abuse classifications

IPQS Proxy Detection API

API service for detecting proxies, VPNs, Tor nodes, and malicious IPs

IPQualityScore IP Risk Score API

Real-time IP fraud detection and risk scoring API for identifying malicious IPs

SikkerAPI

IP reputation & threat intel API backed by honeypot sensors and community reports.

MaxMind GeoIP Insights

IP intelligence platform for proxy/VPN detection and geolocation

IP2Location IP2Proxy Proxy Detection Database

Database for detecting VPNs, proxies, Tor exits, and anonymization services

NETSCOUT ATLAS Intelligence Feed (AIF)

AI-powered threat intelligence feed for automated DDoS protection

IPASIS Bot Detection and Fraud Prevention API

API for IP reputation lookup and email validation with fraud risk scoring.

CTIChef.com Detection Feeds

A tiered cyber threat intelligence service providing detection rules from public repositories with varying levels of analysis, processing, and guidance for security teams.

Constella Threat Intelligence Data Signals API

API providing access to compromised identity data and threat signals

KELA Technical Cybercrime Intelligence

Technical threat intel feed of compromised IPs/domains from cybercrime sources

OPSWAT MetaDefender InSights C2

Real-time C2 infrastructure detection and disruption threat intelligence feed

Malware Patrol Enterprise CTI

Enterprise threat intelligence feeds covering malware, phishing, C2, and IPs

Sec1 ZeroDefender

Real-time zero-day vulnerability detection and alerting platform

Nozomi Networks Threat Intelligence

OT/IoT threat intelligence feed for vulnerability and malware detection

DarkOwl Ransomware API

API for monitoring ransomware sites to detect org compromises & extortion

Hitachi Cyber Cyber Threat Intelligence Services

CTI services combining human expertise and AI for threat analysis

SecurityScorecard Intelligence Feeds

Cyber threat intelligence feeds for SOC and threat intelligence teams

VMRay UniqueSignal

Behavior-based threat intel feed delivering malware IOCs with context

zvelo PhishBlocklist™

Curated phishing threat intelligence feed with predictive detection

Nothreat ThreatShield

AI-driven threat intel feeds for automated blocking on 20+ firewall vendors

SecurityZones SURBL BV

Domain reputation threat intelligence feeds for malicious domain detection

Netcraft Threat Feeds

Threat intelligence feeds covering 100+ attack types with 5-min updates

Abusix Threat Intelligence

Real-time threat intel platform with IP/domain reputation scoring and low false positives.

alphaMountain Threat Intel & URL Classification

AI-powered URL classification & IP reputation feed/API for security vendors.

alphaMountain URL Classification

ML-based URL & domain classification API for threat and content scoring.

CrowdSec Live Exploit Tracker

Real-time CVE exploitation tracker with active IP feeds and IoC visibility.

DNSSense Cyber X-Ray

AI-powered DNS domain threat intelligence service for DDR 2.0 solutions.

Farsight Security DNSDB

Passive DNS intelligence platform for threat detection and investigation.

ExoneraTor

Check if an IP address was used as a Tor relay on a given date.

Tor Exit Addresses

A database of Tor exit nodes with their corresponding IP addresses and timestamps.

IronNet IronRadar

Proactive C2 threat intelligence feed for detecting adversary infrastructure

Bitdefender Operational Threat Intelligence

Threat intelligence platform providing global threat visibility and IoCs

Malware Patrol Threat Intelligence

Threat intelligence feeds providing malware and threat data in multiple formats

ZeroFox Threat Intelligence Feeds

Threat intelligence feeds for SOC teams from social, dark web & botnet sources

Lookout Threat Intelligence Services

Mobile threat intelligence service providing threat data, research, and DFIR

CYJAX Investigative Intelligence

Investigative intelligence service for law enforcement agencies

Ivanti Neurons for Vulnerability Knowledge Base

Vulnerability threat intelligence platform with risk-based scoring and CVE/CWE data

Armis Vulnerability Intelligence Database

AI-powered vulnerability intelligence database with real-time threat context

Picus Threat Library

Threat intelligence library with 30,000+ threats mapped to MITRE ATT&CK

Abusix Guardian Intel

Real-time threat intel feeds sourced from honeypots & ISP abuse reports.

Abusix Guardian

Suite for abuse desk mgmt, email blocklisting & threat intel for ISPs.