SSL Certificate Analysis for m.vk.com - Security Grade & TLS Configuration

Open Cached · just now

84/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 19

AMP

Facebook

GlobalSign

Google Analytics

Google API JS Client

Google DoubleClick

Google Maps

Google Search

Google Static File Front End

Google Tag Manager

Google Translate

Instagram Telegram

TikTok Analytics

Twitter Yandex

Yandex Tools

YouTube

Google Cloud

Certificate Information

Subject

C=RU, ST=Moscow, L=Moscow, O=VK LLC, CN=*.vk.com

Issuer

C=BE, O=GlobalSign nv-sa, CN=GlobalSign ECC OV SSL CA 2018

Valid From

January 30, 2026

Valid Until

March 03, 2027 372 days

Public Key

ECDSA 384 bit (P-384) Strong

Signature Algorithm

ECDSA-SHA384

SHA-256 Fingerprint

4C:28:49:A6:F1:E1:02:92:0C:39:0F:F4:1F:AB:0A:41:3B:CA:14:12:E6:A0:F3:7A:03:03:04:ED:13:D8:76:DC

Alternative Names

29 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

Present

max-age=15768000

Content-Security-Policy

Basic

default-src; script-src; style-src Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Good

sameorigin

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Improve CSP by adding more specific directives and removing 'unsafe-inline'
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

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