indexo.dev

emersonhsieh.com

.com crawl

First seen 2026-04-20 · Last seen 2026-05-13 · ok HTTP/1.1 200 698 ms crawled 2026-05-13

US · 174.129.25.170 · AS14618 Amazon.com, Inc.

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

Classifying

HTML metadata

Title
Emerson Hsieh
Description
startups, research, and lots of doodles!

Open Graph

url
https://www.emersonhsieh.com
logo
https://www.emersonhsieh.com/opengraph.png
title
Emerson Hsieh
locale
en_US
description
startups, research, and lots of doodles!

Technology

CDN
Fastly
Server
GitHub.com

Third-party hosts loaded (3)

  • stackpath.bootstrapcdn.com×2
  • cdnjs.cloudflare.com×1
  • code.jquery.com×1

Social

Registration

Registrar
GoDaddy.com, LLC
Created
2016-01-10
Expires
2028-01-10 599 days left
Updated
2026-01-11
Name servers
  • ns09.domaincontrol.com
  • ns10.domaincontrol.com

DNS records live

NS
  • ns09.domaincontrol.com
  • ns10.domaincontrol.com
MX
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 30 alt2.aspmx.l.google.com
  • 40 aspmx2.googlemail.com
  • 50 aspmx3.googlemail.com
Verified for
  • Google

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

R12
from 2026-04-07 to 2026-07-06
Expires in 46 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (13)

Linked from (1)