Validate Emails and Check IP Reputations Instantly, for Free
Seven powerful tools to verify email addresses, detect disposable inboxes, check IP blocklists, and score risk. No signup required for individual lookups.
Free Email Validation and Risk Scoring
Verify deliverability, detect disposable addresses, analyze authentication records, and score email risk with our free email checker tools.
Email Checker
Validate email format, domain, MX records, disposable status, catch-all configuration, mailbox existence, and deliverability in real time.
- Format and syntax validation
- MX record and domain verification
- Disposable and catch-all detection
- Mailbox deliverability check
Email Reputation Checker
Analyze SPF, DKIM, and DMARC configuration, check domain blocklist status, and receive a normalized risk score from 200 to 1000.
- SPF, DKIM, and DMARC analysis
- Domain blocklist status check
- Normalized risk score (200-1000)
- Authentication protocol review
Email Risk Score
Rate any email address on a 200 to 1000 scale with a detailed Explainable Risk Report that breaks down each contributing factor.
- Risk score from 200 to 1000
- Explainable Risk Report breakdown
- Multi-factor risk analysis
- Fraud signal detection
Fake Email Checker
Detect disposable inboxes, alias tricks, and fraudulent email identities before they enter your system or contact list.
- Disposable inbox detection
- Alias and plus-trick identification
- Fraudulent identity flagging
- Temporary email provider database
Free IP Intelligence and Blocklist Monitoring
Look up geolocation, check blocklist status across 20 providers, detect proxies and VPNs, and score IP reputation with our free IP lookup tools.
IP Blacklist Checker
Query 20 DNSBL providers in real time to check if any IPv4 or IPv6 address is actively blocklisted, with provider-level detail.
- 20 DNSBL provider queries
- IPv4 and IPv6 support
- Provider-level detail and reason codes
- Real-time blocklist status
IP Lookup
Get instant geolocation, ISP and ASN data, connection type detection, blocklist status, WHOIS enrichment, and risk scoring for any IP.
- Geolocation and ISP/ASN data
- Connection type detection
- WHOIS enrichment
- Risk scoring and blocklist check
IP Reputation Checker
Score any IP address for risk with blocklist status, connection type analysis, proxy/VPN detection, and an Explainable Risk Report.
- Risk score from 200 to 1000
- Proxy, VPN, and Tor detection
- Connection type classification
- Explainable Risk Report
Why Use Our Free Tools?
Quick, reliable security checks with no barriers to entry.
Instant Results
Get validation and risk scoring in seconds. No waiting, no queues, no batch processing delays.
No Signup Required
Run individual lookups without creating an account. No email registration, no credit card, no strings attached.
Production-Grade Accuracy
Same scoring engine and data sources as the full API. Real-time checks against live servers and databases.
Scalable to API
Start with free lookups, then upgrade to API access for bulk processing, automation, and webhook integrations.
Ready to Scale Beyond Free Lookups?
Upgrade to API access for bulk processing, automated workflows, and webhook integrations. Connect to your app, CRM, or security pipeline in minutes.
- Access to Email and IP Insights
- Pre-built workflows and SDKs included
14-day free trial. No credit card required.
Frequently Asked Questions
Are the free tools really free to use?
Yes. Every tool on this page is free for individual lookups with no signup required. You can validate emails, check IP reputations, and run blocklist queries without creating an account or entering payment information.
What is the difference between the free tools and the API?
The free tools provide single-lookup access through a web interface. The API offers bulk processing, automated workflows, webhook integrations, and higher rate limits for production use. You can upgrade to API access with a 14-day free trial.
How accurate are the free email and IP checks?
The free tools perform real-time validation against live mail servers, DNSBL providers, and geolocation databases. Results include deliverability checks, blocklist queries against live providers, and normalized risk scoring on the 200 to 1000 scale.
Do I need to create an account to use these tools?
No account is required for basic lookups. Simply enter an email address or IP address and get instant results. For higher volumes or API integration, you can sign up for a free trial with no credit card required.
What risk score range do the tools use?
All risk scores use a normalized 200 to 1000 scale. Lower scores indicate lower risk, while higher scores signal elevated risk. Each score includes an Explainable Risk Report detailing the contributing factors.