tongfei.xyz

.xyz crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 2173 ms crawled 2026-05-19

US · 185.199.108.153 · AS54113 Fastly, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Tongfei Zhu - Work
Language: en

Technology

CDN: Fastly
Server: GitHub.com

Registration

Registrar

Go Daddy, LLC

Created

2025-03-31

Expires

2027-03-31 314 days left

Updated

2026-04-01

Name servers

ns45.domaincontrol.com
ns46.domaincontrol.com

DNS records live

NS

ns45.domaincontrol.com
ns46.domaincontrol.com

Email authentication no MX

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

Certificate (current)

R13

from 2026-03-27 to 2026-06-25

Expires in 35 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://tongfei.xyz/

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=31556952

Linked from (3)