Free infrastructure diagnostics
Infrastructure toolkit
Inspect DNS, email, TLS, HTTP and network configuration from one clean toolkit — built by Wignall Technical.
Toolkit
Diagnostic tools
Choose a tool to investigate DNS, web, email or network configuration.
01DNS
DNS Lookup
Query A, AAAA, MX, TXT, NS, CNAME, SOA, CAA and SRV records.
Open tool →02Web & TLSSSL / TLS Checker
Inspect certificates, expiry dates, issuers and TLS connections.
Open tool →03Web & TLSHTTP Header Checker
Inspect initial response headers, redirect location, status and response time.
Open tool →04EmailEmail DNS Checker
Validate MX, SPF and DMARC configuration for a domain.
Open tool →05NetworkIP & ASN Lookup
Find IP ownership, ASN, ISP and approximate network location.
Open tool →06NetworkSubnet Calculator
Calculate IPv4 network, broadcast, range and host capacity.
Open tool →07DeveloperDeveloper Utilities
Format JSON, encode Base64 and convert Unix timestamps.
Open tool →Domain InspectorCheck the whole domain,
Check the whole domain,
not just one record.
Run the most useful DNS, mail, HTTPS and web checks in one report, with a simple health score and clear failures.
Open Domain Inspector →Example report · illustrative results
92/ 100
Domain health
Domain health
✓ DNS & nameservers
✓ HTTPS certificate
! DMARC policy review
✓ Mail routing