SSL Certificate Analysis for 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=javierzader.com

Issuer

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

Valid From

August 11, 2026

Valid Until

November 09, 2026 37 days

Public Key

RSA 2048 bit Adequate

Signature Algorithm

SHA256-RSA

SHA-256 Fingerprint

19:75:AB:BF:06:EB:D2:8B:3B:7C:DB:25:F2:F4:4D:E3:37:7A:18:A6:23:5E:0E:7E:72:A8:BF:E9:2A:D3:E1:E7

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

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

Subject Alternative Names

1 domain

javierzader.com