sypei.com

.com crawl

First seen 2026-04-18 · Last seen 2026-05-15 · ok HTTP/1.1 200 6799 ms crawled 2026-05-12

US · 66.33.60.35 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Siyou Pei - Portfolio
Description: Software Engineer | PhD in ECE | Applied AI/ML & XR Systems
Language: en

Technology

CDN: Vercel
CMS: Next.js

Social

Registration

Registrar

Xin Net Technology Corporation

Created

2018-11-09

Expires

2027-11-09 539 days left

Updated

2025-10-10

Name servers

ns1.vercel-dns.com
ns2.vercel-dns.com

DNS records live

NS

ns1.vercel-dns.com
ns2.vercel-dns.com

Email authentication no MX

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

Certificate (current)

R12

from 2026-04-01 to 2026-06-30

Expires in 42 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.sypei.com/

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=63072000