prelingerlibrary.org

.org crawl

First seen 2026-04-13 · Last seen 2026-05-15 · ok HTTP/1.1 200 576 ms crawled 2026-05-06

US · 173.236.249.177 · AS26347 New Dream Network, LLC

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Prelinger Library
Description: Homepage of the Prelinger Library in San Francisco, CA.

Open Graph

url: http://prelingerlibrary.org
title: The Prelinger Library
locale: en_US.utf-8
site name: The Prelinger Library
description: Homepage of the Prelinger Library in San Francisco, CA.

Technology

Server: Apache

Third-party hosts loaded (1)

purl.org×1

Registration

Registrar

Network Solutions, LLC

Created

2004-09-23

Expires

2027-09-23 492 days left

Updated

2024-07-31

Name servers

ns1.dreamhost.com
ns2.dreamhost.com
ns3.dreamhost.com

DNS records live

NS

ns1.dreamhost.com
ns2.dreamhost.com
ns3.dreamhost.com

MX

0 mx1.dreamhost.com
0 mx2.dreamhost.com

Email authentication partial

SPF: v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-03-18 to 2026-06-16

Expires in 28 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://prelingerlibrary.org/

findings

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