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cdrprimer.org

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First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 2718 ms crawled 2026-05-08

US · 199.19.156.65 · AS36363 Viridio

Reputation 92/100 no dmarc policy

sector education type homepage

HTML metadata

Title
Carbon Dioxide Removal Primer
Description
A new resource on the fundamentals of carbon dioxide removal and its role in addressing the climate crisis.
Language
en

Open Graph

url
https://cdrprimer.org
title
Carbon Dioxide Removal Primer
site name
Carbon Dioxide Removal Primer
description
A new resource on the fundamentals of carbon dioxide removal and its role in addressing the climate crisis.

Technology

Server
nginx
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Registration

Registrar
NameCheap, Inc.
Created
2020-09-11
Expires
2026-09-11 114 days left
Updated
2025-08-17
Name servers
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com

DNS records live

NS
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com
MX
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • google-site-verification=9FDZNuKGRiViUriecysBo_R5zGpEIEIP4ll3GC0qDhc

Email authentication weak

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

Certificate (current)

E8
from 2026-04-25 to 2026-07-24
Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://cdrprimer.org/

present
  • x-frame-options
  • x-content-type-options
  • permissions-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Referrer Policy
Header values
x-frame-options
SAMEORIGIN
permissions-policy
interest-cohort=()
x-content-type-options
nosniff

Linked from (1)