[Maximum of 100 IPs allowed per batch]
A bulk IP reputation check evaluates a list of IP addresses against multiple threat intelligence sources in a single batch request - rather than checking one IP at a time. For each IP in the batch, the tool returns blacklist status, malware associations, phishing flags, spam scores, VPN/proxy/Tor detection, geolocation, and ASN data. Bulk processing is essential for SOC alert triage on threat-feed indicator lists, MSSP security sweeps across client environments, email-sender reputation auditing at scale, and continuous monitoring of owned IP portfolios.
Feature: Single batch processes up to 100 IPv4 or IPv6 addresses; the API supports higher concurrency for larger lists
Feature: Each IP returned with full reputation context: blacklist hits, malware/phishing/spam flags, VPN/proxy detection, geolocation, ASN
Feature: Consolidated threat score per IP for fast triage decisions in SIEM and SOAR workflows
Feature: Direct links to blacklist removal forms for IPs that need delisting - useful for remediation workflows
For continuous bulk reputation monitoring with scheduled re-checks, programmatic batch submission, and SIEM/SOAR integration, the IP Reputation API for high-volume indicator enrichment processes thousands of IPs per request with rate-limit controls and parallel processing.
Bulk IP reputation checks show up wherever security decisions need to be made across batches: SOC triage on threat-feed indicator lists, MSSP security sweeps across client environments, email-sender reputation auditing, and scheduled monitoring of owned IP infrastructure. The four use cases below are where bulk processing matters most.
Security Operations Centers receive indicators from multiple threat feeds daily - often containing hundreds of IPs. Manually checking each is impractical; Bulk IP Reputation Check processes the entire list in seconds, automatically flagging high-risk indicators for analyst review. Integrate the IP Reputation API into your SIEM or SOAR for automated reputation enrichment of every new alert.
Managed Security Service Providers running security sweeps across multiple client environments use Bulk IP Reputation Check to simultaneously assess all IPs in client monitoring scope. Daily bulk reputation checks against updated threat intelligence databases catch newly blacklisted IPs before they become active threats. For scheduled recurring checks, use the IP Reputation API with cron-style job scheduling.
Email security teams process large lists of sender IPs observed in email traffic. Bulk IP Reputation Check evaluates all observed senders simultaneously against spam blacklists and phishing databases - identifying malicious senders for blocklist creation, and verifying the reputation of approved sender IP lists. Combine with the Bulk DNS Lookup for comprehensive email infrastructure auditing across the entire portfolio.
Organizations managing large IP portfolios run scheduled Bulk IP Reputation Checks against all owned mail server, web server, and application server IPs to detect compromises - infrastructure used for legitimate business purposes may be hijacked for spam or malware hosting without the owner's knowledge, leading to blacklisting. Regular bulk checks catch this before it damages email deliverability and brand reputation.
The IP Reputation API accepts JSON arrays of IPs, returns structured results for each one, and supports high concurrency for large batches. Each result includes blacklist source details, threat category, confidence scores, and direct links to blacklist removal forms for IPs that need remediation - eliminating the manual back-and-forth between intel sources and remediation queues.
Schedule a daily Bulk IP Reputation Check of all your organization's public-facing mail server, web server, and application IPs. Automated alerting on new blacklist entries gives you the earliest possible warning of infrastructure compromise or reputation damage. Use the IP Reputation API with cron-style scheduling to run these checks unattended.
