SSL Certificate Analysis for subpro.space - Security Grade & TLS Configuration

Detected Technologies

See all in URL Inspect 1

Let's Encrypt

Certificate Information

Subject

CN=novasoft.site

Issuer

C=US, O=Let's Encrypt, CN=R13

Valid From

January 22, 2026

Valid Until

April 22, 2026 57 days

Public Key

RSA 4096 bit Strong

Signature Algorithm

SHA256-RSA

SHA-256 Fingerprint

36:FE:AC:64:F3:6B:88:E5:99:AB:35:50:C3:E5:EC:9B:F7:DB:85:3B:C0:C3:3A:71:56:E5:CD:A7:72:D0:8F:77

Alternative Names

81 domains

Security Configuration

TLS Protocols

TLS 1.2 TLS 1.3

Forward Secrecy

Supported (Modern clients use PFS)

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Good

SAMEORIGIN

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Present

same-origin

Permissions-Policy

Present

accelerometer=(), browsing-topics=(), camera=(); +14 more

Recommendations

• Add Content-Security-Policy header to prevent XSS attacks

CAA Records (Certificate Authority Authorization)

CAA Records

Not Configured (Any CA can issue certificates)

CAA Issues

• No CAA records configured - any CA can issue certificates

Recommendations

• Implement CAA records to restrict which CAs can issue certificates for your domain
• This adds an extra layer of security against unauthorized certificate issuance
• Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
• Consider adding 'iodef' record to receive security incident reports