indexo.dev

harpercollinsleadership.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 307 3172 ms crawled 2026-05-19

US · 192.124.249.8 · AS30148 Sucuri

Reputation 100/100

Classifying

HTML metadata

Title
You are being redirected...

Technology

Server
Sucuri

Registration

Registrar
MarkMonitor Inc.
Created
2017-08-24
Expires
2026-08-24 95 days left
Updated
2025-07-23
Name servers
  • ns1.markmonitor.com
  • ns2.markmonitor.com
  • ns3.markmonitor.com
  • ns4.markmonitor.com
  • ns5.markmonitor.com
  • ns6.markmonitor.com
  • ns7.markmonitor.com

DNS records live

NS
  • ns1.markmonitor.com
  • ns2.markmonitor.com
  • ns3.markmonitor.com
  • ns4.markmonitor.com
  • ns5.markmonitor.com
  • ns6.markmonitor.com
  • ns7.markmonitor.com
TXT
  • ca3-8e3848d061844bb08f1ca2e51b49a236
Verified for
  • Google
  • Meta

Email authentication no MX

SPF
not published
DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

Starfield Secure Certificate Authority - G2
from 2026-04-08 to 2026-07-07
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://harpercollinsleadership.com/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
upgrade-insecure-requests;
strict-transport-security
max-age=31536000

Links to (8)

Linked from (1)