SSL Certificate Analysis for www.supernova.io - Security Grade & TLS Configuration

Detected Technologies

See all in URL Inspect 13

Let's Encrypt

Umami Analytics

Amazon S3

Customer.io

Google Analytics

Google DoubleClick

Google Tag Manager

Hotjar

OneTrust

Typeform

YouTube

Zendesk

Certificate Information

Subject

CN=www.supernova.io

Issuer

C=US, O=Let's Encrypt, CN=YR1

Valid From

June 23, 2026

Valid Until

September 21, 2026 32 days

Public Key

RSA 2048 bit Adequate

Signature Algorithm

SHA256-RSA

SHA-256 Fingerprint

25:A9:79:75:E2:86:76:80:9C:16:54:70:30:3A:A1:CF:42:2D:9B:6A:A9:54:7D:5F:A7:C1:C0:A8:05:2C:32:6B

Alternative Names

1 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

Good

max-age=31536000; includeSubDomains

Content-Security-Policy

Basic

default-src; script-src; style-src; +5 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

Permissions-Policy

Present

camera=(), microphone=(), geolocation=()

Recommendations

• Consider adding 'preload' to HSTS for maximum security
• Improve CSP by adding more specific directives and removing 'unsafe-inline'

CAA Records (Certificate Authority Authorization)

CAA Records

Configured (Restricts certificate issuance)

Current Issuer

Authorized (Matches CAA policy)

Authorized CAs

letsencrypt.org pki.goog sectigo.com globalsign.com

Recommendations

• Consider using critical flag (flags=128) for stricter CAA enforcement
• You have authorized 4 CAs - consider limiting to only the CAs you actively use
• Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
• Consider adding 'issuewild' records to control wildcard certificate issuance

Subject Alternative Names

1 domain

www.supernova.io