daniel-halpern.com

.com crawl

First seen 2026-04-20 · Last seen 2026-05-16 · ok HTTP/1.1 200 517 ms crawled 2026-05-13

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 100/100

Classifying

HTML metadata

Title

About - Daniel Halpern

Language

Canonical

https://daniel-halpern.com/

Feeds

Daniel Halpern Feed Atom

Open Graph

url: https://daniel-halpern.com/
title: About
locale: en-US
site name: Daniel Halpern

Technology

CDN: Fastly
Server: GitHub.com

Third-party hosts loaded (1)

cdnjs.cloudflare.com×1

Social

Registration

Registrar

Squarespace Domains II LLC

Created

2021-10-26

Expires

2026-10-26 159 days left

Updated

2025-10-11

Name servers

ns-cloud-c1.googledomains.com
ns-cloud-c2.googledomains.com
ns-cloud-c3.googledomains.com
ns-cloud-c4.googledomains.com

DNS records live

NS

ns-cloud-c1.googledomains.com
ns-cloud-c2.googledomains.com
ns-cloud-c3.googledomains.com
ns-cloud-c4.googledomains.com

Email authentication no MX

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

Certificate (current)

R13

from 2026-04-25 to 2026-07-24

Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://daniel-halpern.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=31556952