openletter.net

.net crawl

First seen 2026-04-14 · Last seen 2026-05-12 · ok HTTP/1.1 200 3091 ms crawled 2026-05-08

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: OpenLetter.net
Description: OpenLetter.net
Language: en

Open Graph

url: https://openletter.net
title: OpenLetter.net
description: OpenLetter.net: where the world comes together on humanity-scale challenges.

Technology

CDN: Vercel
CMS: Next.js

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

Contact

Email

partnerships@openletter.net

Registration

Registrar

Gandi SAS

Created

2022-04-18

Expires

2027-04-18 334 days left

Updated

2026-03-18

Name servers

ns-121-a.gandi.net
ns-126-c.gandi.net
ns-240-b.gandi.net

DNS records live

NS

ns-121-a.gandi.net
ns-126-c.gandi.net
ns-240-b.gandi.net

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

TXT

google-site-verification=eCbfHrCHHuSW0ZySbvt6LuV_GVdbYm7G27-7U7a6f7k

Email authentication partial

SPF

v=spf1 include:_mailcust.gandi.net include:_spf.google.com ?all

neutral (?all)

DMARC

v=DMARC1; p=none;

policy: none (monitoring only)

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl6LN7xYNS+y2JMaUfxAF5hNq4o6d75boYjXCCFFD2FsTZIegmb8Y3u5/OAzcza1Wo5mOWoKqW93YJitd5H…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxGDMQtEPZA4nfzQLRmUfEOJaE1H08rLVyzVvFlTLPySkfY5Hw2VJ6B3+WYxtoKY+Po74BAPTc6bJQKZQ8K…

selectors probed

Certificate (current)

R12

from 2026-05-01 to 2026-07-30

Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://openletter.net/

present

strict-transport-security
content-security-policy
x-content-type-options
referrer-policy
permissions-policy

findings

CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing frame protection

Header values

referrer-policy: no-referrer-when-downgrade
permissions-policy: geolocation=(), midi=(), sync-xhr=(), microphone=(), magnetometer=(), gyroscope=(), fullscreen=(self), payment=()
x-content-type-options: nosniff
content-security-policy: default-src 'self'; img-src 'self' www.googletagmanager.com https://res.cloudinary.com/ ; script-src 'self' www.googletagmanager.com https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ https://upload-widget.cloudinary.com ; form-action 'none'; object-src 'none'; style-src 'self' 'unsafe-inline' ; connect-src 'self' www.google-analytics.com *.googleapis.com ; frame-src 'self' https://www.google.com/ https://upload-widget.cloudinary.com/ ; frame-ancestors 'none'; font-src 'self' ; upgrade-insecure-requests;
strict-transport-security: max-age=63072000; includeSubDomains; preload