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heffter.org

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First seen 2026-04-13 · Last seen 2026-05-14 · ok HTTP/1.1 200 4442 ms crawled 2026-05-07

US · 104.21.70.188 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Heffter Research Institute | Advancing Psychedelic Research
Description
Heffter Institute advances psilocybin research for cancer distress, addiction. Sole US supporter, major European funder for 20+ years.
Language
en-US
Generator
Powered by LayerSlider 7.9.6 - Build Heros, Sliders, and Popups. Create Animations and Beautiful, Rich Web Content as Easy as Never Before on WordPress.
Canonical
https://www.heffter.org/
Feeds

Open Graph

url
https://www.heffter.org/
title
Heffter Research Institute | Advancing Psychedelic Research
locale
en_US
site name
Heffter Research Institute | Advancing Psychedelic Research
description
Heffter Institute advances psilocybin research for cancer distress, addiction. Sole US supporter, major European funder for 20+ years.

Technology

CDN
Cloudflare
CMS
WordPress
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • fonts.googleapis.com×3
  • challenges.cloudflare.com×2
  • www.googletagmanager.com×2
  • gmpg.org×1
  • www.google.com×1

Social

Registration

Registrar
GoDaddy.com, LLC
Created
1994-06-21
Expires
2026-06-20 31 days left
Updated
2025-12-17
Name servers
  • harley.ns.cloudflare.com
  • sky.ns.cloudflare.com

DNS records live

NS
  • harley.ns.cloudflare.com
  • sky.ns.cloudflare.com
MX
  • 10 mail.protonmail.ch
  • 20 mailsec.protonmail.ch
TXT
  • protonmail-verification=f6e4df42aa43cb57cec06409409105055ad6b335

Email authentication strong

SPF
v=spf1 include:_spf.protonmail.ch mx ~all
softfail (~all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

WE1
from 2026-04-14 to 2026-07-13
Expires in 55 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (2)

Linked from (4)