openlibrary.org

Welcome to Open Library | Open Library

Overview

• Status: alive
• First seen: 2026-09-21
• Last crawled: 2026-09-22
• Security grade: F (45/100)
• TLS certificate expires: 2026-11-27
• 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: Nginx

Recent changes

• 2026-09-22 — TLS expiry changed from "2026-11-27" to "2026-11-27"
• 2026-09-22 — TLS expiry changed from "2026-11-27" to "2026-11-27"

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