Tools
Run quick diagnostics on your website, network, and TLS setup using FAST's free toolbox.
WEB
Website Speed Test
Run a full-page test to understand how your site loads, which assets are slow, and how FAST can improve perceived performance.
Performance Test
Measure how a single asset performs from multiple edge locations and compare latency before and after enabling FAST.
HTTP Header Checker
Inspect HTTP response headers for any URL to verify caching, redirects, and security policies in real time.
HTTP/2 Test
Confirm whether your origin or CDN endpoint serves traffic over HTTP/2 or newer protocols.
Brotli Test
Check if your server or FAST endpoint supports Brotli compression to reduce transfer size for text-based content.
NETWORK
IP Location Finder
Look up where an IP address or hostname is routed in the world and which region is serving your users.
DNS Checker
Query DNS records from multiple resolvers to validate propagation, record types, and misconfigurations.
Ping Test
Send ICMP pings from several global locations to see round-trip times and packet loss.
Ping IPv6 Test
Test IPv6 reachability and latency for any address or hostname using distributed probes.
Traceroute Test
Visualize the network path and hops between edge locations and your origin to troubleshoot routing issues.
BGP Looking Glass
Access public BGP views from different providers to understand how your prefixes are announced and routed.
SECURITY
Certificate Checker
Decode and inspect SSL/TLS certificates to review validity, SANs, and intermediate chains.
Certificate Chain Composer
Build a complete certificate chain by combining your leaf certificate with the correct intermediate certificates.
SHA256 Generator
Generate a SHA256 hash for any input so you can verify file integrity or configuration values.
SSL FREAK Test
Check whether a server is still supporting outdated export-grade cipher suites associated with the FREAK vulnerability.
TLS Logjam Test
Validate that your TLS configuration is not vulnerable to Logjam-style attacks on weak Diffie–Hellman parameters.
