indexo.dev

jackcao.com

.com crawl

First seen 2026-04-19 · Last seen 2026-05-10 · ok HTTP/1.1 200 1835 ms crawled 2026-05-13

US · 67.205.29.44 · AS26347 New Dream Network, LLC

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Jack Cao | The WordPress Site Speed & Design Fanatic
Description
Click here
Language
en-US
Generator
WordPress 6.9.4
Canonical
https://jackcao.com/
Feeds

Open Graph

url
https://jackcao.com/
title
Jack Cao | The WordPress Site Speed & Design Fanatic
locale
en_US
site name
Jack Cao
description
Jack Cao is a Page Speed and SEO fanatic.
updated time
2022-12-24T15:57:56+00:00

Technology

Server
Apache
CMS
WordPress

Social

Registration

Registrar
NameCheap, Inc.
Created
2013-08-21
Expires
2026-08-21 94 days left
Updated
2025-09-19
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
  • 0 mx1.mailchannels.net
  • 0 mx2.mailchannels.net

Email authentication weak

SPF
v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-30 to 2026-07-29
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jackcao.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 (1)