SSL Certificate Analysis for www.javierzader.com - Security Grade & TLS Configuration

Detected Technologies

See all in URL Inspect 11

GitHub

Let's Encrypt

Shields.io

BootstrapCDN

Giscus

Google Analytics

Google Fonts

Google Tag Manager

Sanity

Vercel

Certificate Information

Subject

CN=www.javierzader.com

Issuer

C=US, O=Let's Encrypt, CN=YR2

Valid From

August 13, 2026

Valid Until

November 11, 2026 39 days

Public Key

RSA 2048 bit Adequate

Signature Algorithm

SHA256-RSA

SHA-256 Fingerprint

5E:26:A0:94:14:4D:BC:2C:01:A6:56:00:3C:AE:0C:96:5F:77:2B:45:2A:21:97:E0:79:32:7F:D4:B6:62:22:D2

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

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Good

default-src; script-src; style-src; +9 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=(); +3 more

Recommendations

• Strengthen CSP by removing 'unsafe-eval'

CAA Records (Certificate Authority Authorization)

CAA Records

Configured (Restricts certificate issuance)

Current Issuer

Authorized (Matches CAA policy)

Authorized CAs

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