Free monitoring & DevOps tools
Instant checks for SSL certificates, domain WHOIS, DNS propagation, and more. No signup required — just enter a domain and go.
SSL Certificate Checker
Check any domain's SSL certificate — issuer, expiry date, days remaining, certificate chain validity, protocol, and cipher.
Target query: "check SSL certificate expiry"
Domain Expiry & WHOIS Lookup
Look up domain registration details — registrar, registration date, expiry date, nameservers, status codes, and DNSSEC.
Target query: "when does my domain expire"
DNS Propagation Checker
Query multiple global DNS resolvers simultaneously to check if your DNS changes have propagated. Supports A, AAAA, CNAME, MX, NS, TXT, SOA, and CAA records.
Target query: "DNS propagation checker"
Incident Communication Templates
Generate professional status page updates for every phase of an incident — investigating, identified, monitoring, and resolved.
Target query: "incident response template"
Uptime & SLA Calculator
Calculate uptime percentages and see exactly how much downtime each SLA tier allows per year, month, week, and day.
Target query: "uptime percentage calculator"
Want continuous monitoring instead?
These tools give you a point-in-time snapshot. Vantaj monitors your infrastructure 24/7 and alerts you the moment something breaks.
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