cengage.com

The Leading Provider of Higher Education Course Materials – Cengage

Overview

• Status: alive
• First seen: 2026-09-21
• Last crawled: 2026-09-22
• Security grade: A (95/100)
• TLS certificate expires: 2027-03-05
• Inbound links seen: 6

Security & email signals

• ✓ HTTPS
• ✓ HSTS
• ✓ Content-Security-Policy
• ✓ X-Content-Type-Options
• ✓ X-Frame-Options
• ✓ Referrer-Policy
• ✗ Permissions-Policy
• ✓ SPF record
• ✓ DMARC record
• ✗ DKIM record
• ✓ Cookies set securely
• ✓ Has real content (not an empty shell)
• ✓ Valid TLS certificate

Detected technology

Infrastructure: Amazon CloudFront · Cloudflare

Analytics & marketing: Google Tag Manager

Recent changes

• 2026-09-22 — TLS expiry changed from "2027-03-05" to "2027-03-05"

This profile is generated automatically from passive, publicly observable data. Think something here is wrong or want this profile removed? See /bot.