rationality.org

.org crawl

First seen 2026-04-16 · Last seen 2026-05-18 · ok HTTP/1.1 200 977 ms crawled 2026-05-11

US · 138.68.17.193 · AS14061 DigitalOcean, LLC

Reputation 87/100 weak security headers no dmarc policy

sector nonprofit type homepage

HTML metadata

Title

Home | Center for Applied Rationality

Description

Developing clear thinking for the sake of humanity’s future

Canonical

http://www.rationality.org/

Feeds

CFAR | Center For Applied Rationality RSS

Open Graph

url: http://www.rationality.org/
title: Home
description: Developing clear thinking for the sake of humanity’s future

Technology

Server: nginx

Analytics

Google Tag Manager

Fonts

Adobe Fonts

Third-party hosts loaded (4)

cdnjs.cloudflare.com×1
code.jquery.com×1
use.typekit.net×1
www.googletagmanager.com×1

Contact

Phone

45-3100226

Registration

Registrar

NameCheap, Inc.

Created

2001-06-14

Expires

2026-06-14 26 days left

Updated

2025-05-20

Name servers

ns1.digitalocean.com
ns2.digitalocean.com
ns3.digitalocean.com

DNS records live

NS

ns1.digitalocean.com
ns2.digitalocean.com
ns3.digitalocean.com

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

Email authentication weak

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

Certificate (current)

R12

from 2026-03-20 to 2026-06-19

Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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