raymond-yeh.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-19 · ok HTTP/1.1 200 368 ms crawled 2026-05-15

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Welcome | Raymond A. Yeh

Technology

CDN: Fastly
Server: GitHub.com

Analytics

Google Tag Manager

Third-party hosts loaded (8)

ioujenliu.github.io×2
knmac.github.io×2
ajax.googleapis.com×1
cdn.mathjax.org×1
cdnjs.cloudflare.com×1
code.jquery.com×1
maxcdn.bootstrapcdn.com×1
www.googletagmanager.com×1

Social

Contact

Address: Raymond A. YehEmail: rayyeh at purdue dot edu

Registration

Registrar

Squarespace Domains II LLC

Created

2022-02-16

Expires

2027-02-16 271 days left

Updated

2026-02-02

Name servers

ns-cloud-d1.googledomains.com
ns-cloud-d2.googledomains.com
ns-cloud-d3.googledomains.com
ns-cloud-d4.googledomains.com

DNS records live

NS

ns-cloud-d1.googledomains.com
ns-cloud-d2.googledomains.com
ns-cloud-d3.googledomains.com
ns-cloud-d4.googledomains.com

Email authentication no MX

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

Certificate (current)

R13

from 2026-04-26 to 2026-07-25

Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://raymond-yeh.com/

findings

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