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Source we aggregate

isMalicious + AbuseIPDB

Community-reported IP abuse database. isMalicious consumes this source and correlates it with others. Here is what that adds, and when to go direct.

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AbuseIPDB is one of the sources isMalicious aggregates

We do not replace AbuseIPDB. Rows where isMalicious shows a capability AbuseIPDB lacks mostly come from the aggregation layer; for AbuseIPDB’s core use case, use AbuseIPDB directly.

Quick verdict

Choose AbuseIPDB when your task is reviewing or contributing IP abuse reports, including Fail2Ban workflows. Evaluate isMalicious when the same investigation also needs domain or URL checks. Compare evidence on the same indicators before replacing either tool.

isMalicious

Threat intelligence API with multi-source correlation, CVE data and ransomware leak-site tracking.

Best for: Automated threat intelligence at scale

AbuseIPDB

AbuseIPDB provides community-reported IP abuse evidence, report dates and an abuse confidence score. Its API supports IP checks, reports and blacklist downloads.

Best for: Quick, free IP abuse checks for firewall and SIEM enrichment

Feature comparison

FeatureisMaliciousAbuseIPDB
IP reputation
Domain reputation
Confidence scoring
Blocklist download
Free tier available

Check this table against your own indicators.

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AbuseIPDB: strengths and limitations

Strengths
  • Free tier with 1K checks/day
  • Large community
  • Brute-force / SSH abuse coverage
  • Simple API
Limitations
  • Focused on IP abuse rather than domain and URL reputation
  • An abuse report needs context before a blocking decision
  • Compare report age and coverage against your own incidents

Pricing

isMalicious

Free: website lookups with no monthly cap and 250 API calls a month. Pro from €99/month. Enterprise custom pricing.

View pricing →

AbuseIPDB

Free (1K checks/reports per day); Basic $25/month, verified 2026-10-09

Frequently asked questions

Which tool fits an IP abuse investigation?

AbuseIPDB exposes community abuse reports and their dates. isMalicious combines configured intelligence sources and supports other indicator types. Use the same IPs and observation window to compare useful evidence; neither score alone proves that an address should be blocked.

Does isMalicious include AbuseIPDB data?

AbuseIPDB is a configured source. Contribution and availability vary by indicator. Consult the evidence returned for the specific report rather than assuming that every check includes this provider.

How should I evaluate a replacement?

Check known malicious and benign IPs from your own cases. Record missing data, source dates, false positives, integration effort and plan limits. Run a real API request before deciding.

Other comparisons

isMalicious vs VirusTotalisMalicious vs GreyNoiseisMalicious vs ShodanisMalicious vs urlscan.ioisMalicious vs IPQualityScoreisMalicious vs AlienVault OTXisMalicious vs CensysisMalicious vs IPinfoisMalicious vs Criminal IPisMalicious vs SecurityTrailsisMalicious vs PulsediveisMalicious vs Cisco TalosisMalicious vs URLhausisMalicious vs SpamhausisMalicious vs Hybrid AnalysisisMalicious vs ANY.RUNisMalicious vs Cloudflare Radar

Decide with your own data

Don't take our word over AbuseIPDB's. Check something real.

Paste an IP, domain or URL: reputation, WHOIS, DNS, ransomware signals and an AI-generated assessment. Free, no signup.

  • 250 free API calls/month
  • No credit card required
  • API key in under 2 minutes
Get a free API keyView pricing
API docsAbuseIPDB alternative guide