indexo.dev

thecostofknowledge.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 807 ms crawled 2026-05-19

US · 69.163.176.94 · AS26347 New Dream Network, LLC

Reputation 62/100 wrong cert weak security headers no dmarc policy

Classifying

HTML metadata

Title
The Cost of Knowledge
Language
en

Technology

Server
Apache

Third-party hosts loaded (1)

  • ajax.googleapis.com×1

Social

Registration

Registrar
DreamHost, LLC
Created
2012-01-21
Expires
2027-01-21 244 days left
Updated
2025-12-21
Name servers
  • ns1.dreamhost.com
  • ns2.dreamhost.com
  • ns3.dreamhost.com

DNS records live

NS
  • ns1.dreamhost.com
  • ns2.dreamhost.com
  • ns3.dreamhost.com
MX
Show 7 MX records
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
  • 30 aspmx4.googlemail.com
  • 30 aspmx5.googlemail.com

Email authentication weak

SPF
v=spf1 include:sendgrid.net ~all
softfail (~all)
DMARC
not published
DKIM
  • smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…
selectors probed

Certificate (current) wrong cert

sni.dreamhost.com
from 2023-04-03 to 2033-03-31
Expires in 2506 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://thecostofknowledge.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (3)

Linked from (2)