Why pay thousands for security intelligence? WebGuarder offers 110+ free security tools covering everything from DNS intelligence to vulnerability scanning — features that competitors charge $50–$11,000+/year for.
| Feature | WebGuarder Free | SecurityTrails $11K+/yr | Shodan $49/mo+ | DNSDumpster Limited |
|---|---|---|---|---|
| DNS & Domain | ||||
| DNS Record Lookup | ||||
| DNS History & Changes | ||||
| WHOIS Lookup | ||||
| Reverse WHOIS Search | ||||
| Subdomain Enumeration | ||||
| DNSSEC Validation | ||||
| DNS Propagation Check | ||||
| Zone Transfer Detection | ||||
| CAA Record Analysis | ||||
| Security Scanning | ||||
| Subdomain Takeover Detection | ||||
| SSL/TLS Deep Analysis | ||||
| Security Headers Check | ||||
| Email Security (SPF/DKIM/DMARC) | ||||
| Port Scanning + CVE Lookup | ||||
| Cloud Storage Exposure | ||||
| Secret/API Key Leak Detection | ||||
| WAF Detection | ||||
| CORS Misconfiguration Check | ||||
| Open Redirect Detection | ||||
| Intelligence | ||||
| Tech Stack Detection | ||||
| Domain Reputation Score | ||||
| Certificate Transparency Logs | ||||
| IP Intelligence & Geolocation | ||||
| ASN Lookup | ||||
| CVE Vulnerability Feed | ||||
| Breach Monitoring | ||||
| Platform | ||||
| Visual Infrastructure Map | ||||
| Embeddable Security Badge | ||||
| Domain Comparison Tool | ||||
| PDF Report Export | ||||
| Free Continuous Monitoring | ||||
| REST API (No Auth Required) | ||||
| Compliance Mapping (SOC2, ISO) | ||||
DNS & Domain Intelligence
Internet-Connected Device Search
DNS Recon & Mapping
Start scanning domains for free. No signup required for our public tools, or create a free account for continuous monitoring and team features.
Yes. All 110+ public security tools are completely free with no API key or signup required. We offer paid plans for teams that need continuous monitoring, scheduled scans, and multi-domain management — but the core scanning tools are free forever.
SecurityTrails focuses on passive DNS intelligence and historical records (starting at $11,000/year). WebGuarder offers similar DNS intelligence features plus active security scanning (SSL, email auth, headers, subdomain takeover, cloud exposure) — all for free. SecurityTrails has a larger historical DNS dataset, but WebGuarder provides more actionable security insights.
Shodan excels at indexing internet-connected devices and IoT/ICS discovery ($49-499/month). WebGuarder focuses on domain security — DNS, SSL, email authentication, security headers, subdomain takeover, and cloud exposure. If you need IoT device search, use Shodan. If you need comprehensive domain security assessment, WebGuarder is the better (and free) choice.
DNSDumpster is a great free tool for basic DNS reconnaissance and visual domain mapping. WebGuarder includes similar DNS mapping capabilities plus 80+ additional security scanning tools, vulnerability detection, compliance mapping, and a full REST API. Think of WebGuarder as DNSDumpster on steroids.
Absolutely. Our API requires no authentication for public tools — just send a POST request and get JSON results. Rate limited to 10 requests/minute per IP for fair use. See our API documentation for endpoints and code examples.