schroedinger-hat.org

.org crawl

First seen 2026-05-23 · Last seen 2026-05-31 · ok HTTP/1.1 200 283 ms crawled 2026-05-28

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title

Schrödinger Hat: Where we talk Open Source

Description

Schrödinger Hat is a non-profit community advancing open-source software through inspiring events and impactful projects.

Language

Feeds

Schrödinger Hat Blog RSS Feed RSS

Open Graph

url: https://schroedinger-hat.org
title: Schrödinger Hat: Where we talk Open Source
locale: en_US
site name: Schrödinger Hat
description: Schrödinger Hat is a non-profit community advancing open-source software through inspiring events and impactful projects.

Technology

CDN: Vercel
CMS: Next.js

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

Contact

Phone

07355400487

Registration

Registrar

Cloudflare, Inc.

Created

2024-04-08

Expires

2027-04-08 311 days left

Updated

2026-03-14

Name servers

augustus.ns.cloudflare.com
cheryl.ns.cloudflare.com

DNS records live

NS

augustus.ns.cloudflare.com
cheryl.ns.cloudflare.com

MX

1 smtp.google.com

Verified for

Brevo
Google

Email authentication weak

SPF: not published
DMARC: v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-05-18 to 2026-08-16

Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://schroedinger-hat.org/

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=63072000