openlibrary.org

.org toplist crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1623 ms crawled 2026-05-13

US · 207.241.234.205 · AS7941 Internet Archive

Reputation 95/100 weak security headers

sector tech type homepage

HTML metadata

Title: Welcome to Open Library | Open Library
Description: Open Library is an open, editable library catalog, building towards a web page for every book ever published. Read, borrow, and discover more than 3M books for free.
Language: en
Canonical: https://openlibrary.org/

Technology

Server: nginx
CMS: Gatsby

Third-party hosts loaded (2)

apollo.archive.org×1
athena.archive.org×1

Social

Registration

Registrar

easyDNS Technologies Inc.

Created

2001-06-25

Expires

2027-06-25 402 days left

Updated

2025-07-08

Name servers

ns3.archive.org
ns1.archive.org
ns2.archive.org

DNS records live

NS

ns1.archive.org
ns2.archive.org
ns3.archive.org

TXT

84k4aufp68eh5qlo6bsfqmo7rm
C8VERH4US3NUDNOCBIDHLSO15
google-site-verification=vtXGm8q3UgP-f6qXTvQBo85uh3nmIYIotVqqdJDpyz4

Email authentication no MX

SPF: not published
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-05-02 to 2026-07-31

Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://openlibrary.org/

present

referrer-policy

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Permissions Policy

Header values

referrer-policy: no-referrer-when-downgrade