indexo.dev

100school.com

.com crawl

First seen 2026-05-09 · Last seen 2026-05-15 · ok HTTP/1.1 200 1607 ms crawled 2026-05-15

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
100 School: Learn AI Skills for Work | Free Daily Lessons | 100 School
Description
Master AI tools like ChatGPT, Prompting, AI agents, and AI coding with free, bite-sized lessons. No experience needed, just 30 mins a day to stay ahead at work.
Language
en
Canonical
https://100school.com

Open Graph

url
https://100school.com
title
Home
description
Help your team build lasting AI capability in 15 days with practical daily lessons, proven frameworks, and measurable outcomes across real work.

Technology

CDN
Vercel
CMS
Next.js

Third-party hosts loaded (1)

  • scripts.simpleanalyticscdn.com×1

Social

Contact

Email

Registration

Registrar
NameCheap, Inc.
Created
2013-01-25
Expires
2027-01-25 250 days left
Updated
2024-08-07
Name servers
  • keanu.ns.cloudflare.com
  • penny.ns.cloudflare.com

DNS records live

NS
  • keanu.ns.cloudflare.com
  • penny.ns.cloudflare.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=ETxIDNQCu044qVfmF1OVyvfvVZ23b4nGcTCmYMo8b_o
  • google-site-verification=QOAase29pkJ6wxiXML1PXgd5ZroPoRiNG6UWLsOM7l4

Email authentication partial

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc-reports@100school.com; ruf=mailto:dmarc-forensics@100school.com; sp=none; adkim=r; aspf=r
policy: none (monitoring only) · sp=none
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA16Fk4xAUe8BUIkdczLEaK7dnYWhjOE3JueT5K0kauKkvg1b2HMLjgtkgjxF/X57F6v9Ub928qYeqBI…
selectors probed

Certificate (current)

R12
from 2026-04-21 to 2026-07-20
Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.100school.com/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Links to (4)