teyenwu.com

HTML metadata

Technology

CDN

Fastly

Server

GitHub.com

Analytics

• Google Tag Manager

Third-party hosts loaded (5)

• ajax.googleapis.com×1
• cdn.jsdelivr.net×1
• cdnjs.cloudflare.com×1
• maxcdn.bootstrapcdn.com×1
• www.googletagmanager.com×1

Social

• youtube
• github
• facebook

Registration

Registrar

GoDaddy.com, LLC

Created

2018-08-08

Expires

2026-08-08 80 days left

Updated

2025-08-09

Name servers

• ns39.domaincontrol.com
• ns40.domaincontrol.com

DNS records live

NS

• ns39.domaincontrol.com
• ns40.domaincontrol.com

Email authentication no MX

SPF

not published

DMARC

not published

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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

Links to (11)

• youtube.com×2
• arxiv.org×2
• doi.org×2
• facebook.com×2
• github.com×2
• google.com×2
• microsoft.com×2
• videopress.com×2
• vimeo.com×2
• acm.org×2
• youtu.be×1

Linked from (1)

• hsuanlinglee.net×2