shellguo.com

.com crawl

First seen 2026-04-18 · Last seen 2026-05-16 · ok HTTP/1.1 200 3231 ms crawled 2026-05-12

US · 185.199.108.153 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Michelle Guo
Language: en

Technology

CDN: Fastly
Server: GitHub.com

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

Registration

Registrar

Squarespace Domains II LLC

Created

2018-10-29

Expires

2026-10-29 163 days left

Updated

2025-10-14

Name servers

ns-cloud-e1.googledomains.com
ns-cloud-e2.googledomains.com
ns-cloud-e3.googledomains.com
ns-cloud-e4.googledomains.com

DNS records live

NS

ns-cloud-e1.googledomains.com
ns-cloud-e2.googledomains.com
ns-cloud-e3.googledomains.com
ns-cloud-e4.googledomains.com

Email authentication no MX

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

Certificate (current)

R13

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

Expires in 42 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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

Links to (12)

Linked from (5)