harperstacks.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 2409 ms crawled 2026-05-18

US · 192.124.249.112 · AS30148 Sucuri

Reputation 100/100

Classifying

HTML metadata

Title

HarperStacks

Language

en-US

Generator

WordPress 6.9.4

Canonical

https://www.harperstacks.com/

Feeds

Technology

Server: Sucuri
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (6)

i.harperapps.com×40
s48784.pcdn.co×36
unpkg.com×3
cdn.jsdelivr.net×2
www.google.com×1
www.googletagmanager.com×1

Social

Registration

Registrar

MarkMonitor Inc.

Created

2014-08-15

Expires

2026-08-15 88 days left

Updated

2025-07-14

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

Email authentication no MX

SPF: v=spf1 -all
strict (-all)
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 2026-05-17 to 2026-08-15

Expires in 88 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.harperstacks.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