indexo.dev

teachingamericanhistory.org

.org crawl

First seen 2026-04-21 · Last seen 2026-05-12 · ok HTTP/1.1 200 694 ms crawled 2026-05-15

US · 172.67.223.12 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

sector education type homepage

HTML metadata

Title
Teaching American History
Description
Teaching American History is a free resource that brings together primary sources, continuing education, and community for American history teachers.
Language
en-US
Generator
web-worker-offloading 0.2.1
Canonical
https://teachingamericanhistory.org/
Feeds

Open Graph

url
https://teachingamericanhistory.org/
title
Home
locale
en_US
site name
Teaching American History
description
Teaching American History is a free resource that brings together primary sources, continuing education, and community for American history teachers.

Technology

CDN
Cloudflare
CMS
WordPress
Analytics
  • Cloudflare Insights
  • Google Tag Manager
Fonts
  • Adobe Fonts
Third-party hosts loaded (11)
  • cdnjs.cloudflare.com×5
  • use.typekit.net×3
  • p.typekit.net×2
  • www.googletagmanager.com×2
  • gmpg.org×1
  • jelly.mdhv.io×1
  • px.ads.linkedin.com×1
  • secure.gravatar.com×1
  • static.cloudflareinsights.com×1
  • www.facebook.com×1
  • www.google.com×1

Social

Contact

Phone

Registration

Registrar
Network Solutions, LLC
Created
2001-09-23
Expires
2030-09-23 1586 days left
Updated
2025-07-29
Name servers
  • meadow.ns.cloudflare.com
  • sri.ns.cloudflare.com

DNS records live

NS
  • meadow.ns.cloudflare.com
  • sri.ns.cloudflare.com
MX
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 30 alt2.aspmx.l.google.com
  • 40 aspmx2.googlemail.com
  • 50 aspmx3.googlemail.com
TXT
  • pardot556702=a7b7f3c4fd0434b147348e91b79134d81b32dee7790cb9a5fd593a95a6fe721e
Verified for
  • Google
  • Meta

Email authentication partial

SPF
v=spf1 include:aspmx.pardot.com include:_spf.google.com include:sendgrid.net ip4:198.251.78.26 ip4:5.161.255.242 ip6:2607:f1c0:f024:ce00::1 ip6:2a01:4ff:f0:883a::1 include:47228921.spf10.hubspotemail.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:2aa5a06504f847939d5e6db7636ae4b8@dmarc-reports.cloudflare.net
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-04 to 2026-07-03
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • strict-transport-security
  • content-security-policy
findings
  • short HSTS max-age
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
default-src * data: blob: 'unsafe-inline' 'unsafe-eval'; upgrade-insecure-requests;
strict-transport-security
max-age=2592000

Links to (5)

Linked from (1)