indexo.dev

definedlearning.com

.com crawl

First seen 2026-04-21 · Last seen 2026-05-14 · ok HTTP/1.1 200 805 ms crawled 2026-05-14

US · 54.86.210.29 · AS14618 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Defined
Description
Deeper, career-connected learning for every K-12 classroom. The authority on applied learning — trusted by 1,000+ districts and 108,000+ educators.
Language
en
Generator
Astro v6.1.5

Technology

Server
Caddy
CMS
Ghost
Social widgets
  • YouTube Embed

Third-party hosts loaded (3)

  • s3.amazonaws.com×31
  • cdn.schoolblocks.com×3
  • www.youtube.com×1

Social

Registration

Registrar
GoDaddy.com, LLC
Created
2009-02-26
Expires
2027-02-26 281 days left
Updated
2026-02-25
Name servers
  • ns-1343.awsdns-39.org
  • ns-1815.awsdns-34.co.uk
  • ns-465.awsdns-58.com
  • ns-592.awsdns-10.net

DNS records live

NS
  • ns-1343.awsdns-39.org
  • ns-1815.awsdns-34.co.uk
  • ns-465.awsdns-58.com
  • ns-592.awsdns-10.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
  • zone-ownership-verification-fde5448f3b1fc24f3792b94e31c0c2e11a3f253adb3c109ffbdfbe93df4dcf2a
Verified for
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 include:7033206.spf05.hubspotemail.net include:_spf.google.com include:servers.mcsv.net -all
strict (-all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs2CEYEaWf0eyK47Gt+1wb6abE27y3S3wTRh65OFbddYPNcj6ZgK174uNhjAAtnYGlSKI2PnlmAmOUd…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…
selectors probed

Certificate (current)

R13
from 2026-04-19 to 2026-07-18
Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://definedlearning.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (6)

Linked from (2)