Ensure website security with our SSL certificate checker. View certificate issuer details, check validity dates, and inspect DNS names included in the certificate to verify its authenticity and status.
Privacy Protected
SSL Certificate Info - Check Domain Security - FusioFiles
Inspect SSL certificate validity, issuer details, and expiration dates for any public domain. Fast, free, and 100% private. All processing happens locally.
Share Tool
Select files or drag & drop here
Processed 100% locally in your browser. Your files never touch an external server.
Choose File to Begin
100% Client-Side Privacy•No File Size Limits•Free Forever
How to use SSL Certificate Info
FusioFiles 100% Client-Side Privacy Guarantee
Your files and data never leave your browser — processed directly on your device.
Zero Server UploadsExecution occurs entirely in browser memory via WebAssembly and HTML5 Canvas.
HIPAA & GDPR ReadySafe for confidential tax forms, medical records, financial sheets, and legal contracts.
Zero Cloud LatencyInstant results with no upload delays, server queues, or third-party tracking.
Automatic RAM PurgeBuffers and caches are automatically wiped clean the instant you close the tab.
1
Enter Host
Provide the domain name you want to verify security for.
2
Verify Chain
Our tool checks the CA issuer and validity dates.
3
See Expiry
Check exactly when the certificate needs renewal.
Key Features
Certificate Validation
Verify the validity period and usage of any SSL certificate.
Issuer Details
See who issued the certificate (e.g., Let's Encrypt, DigiCert).
Transparency Log
Check if the certificate is logged in public transparency logs.
DNS Listing
View all domain names covered by the certificate.
Frequently Asked Questions
SSL encrypts data between your browser and the server, protecting sensitive information like passwords.
Most modern SSL certificates are valid for 13 months (397 days) or less.
Related Tools
View allLast updated on