indexo.dev

ellerman.org

.org crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 3014 ms crawled 2026-05-08

US · 188.114.97.3 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
DAVID ELLERMAN — David Ellerman's draft and published papers
Description
David Ellerman's draft and published papers
Language
en-US
Canonical
https://www.ellerman.org/
Feeds

Technology

CDN
Cloudflare
CMS
WordPress
Fonts
  • Adobe Fonts

Third-party hosts loaded (1)

  • use.typekit.net×1

Registration

Registrar
DreamHost, LLC
Created
2000-09-27
Expires
2026-09-27 129 days left
Updated
2025-09-01
Name servers
  • paul.ns.cloudflare.com
  • rose.ns.cloudflare.com

DNS records live

NS
  • paul.ns.cloudflare.com
  • rose.ns.cloudflare.com
MX
  • 0 aspmx.l.google.com

Email authentication weak

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

Certificate (current)

WE1
from 2026-03-27 to 2026-06-25
Expires in 35 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://www.ellerman.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

Links to (1)

Linked from (1)