matthewbutterick.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 762 ms crawled 2026-05-19

US · 198.199.109.238 · AS14061 DigitalOcean, LLC

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Matthew Butterick
Description: Matthew Butterick

Open Graph

url: https://matthewbutterick.com/
title: Matthew Butterick
description: Matthew Butterick

Technology

Server: Apache

Third-party hosts loaded (1)

static.getclicky.com×1

Registration

Registrar

DreamHost, LLC

Created

2000-05-01

Expires

2027-05-01 345 days left

Updated

2026-03-31

Name servers

ns1.dreamhost.com
ns2.dreamhost.com
ns3.dreamhost.com

DNS records live

NS

ns1.dreamhost.com
ns2.dreamhost.com
ns3.dreamhost.com

Email authentication no MX

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

Certificate (current)

R13

from 2026-04-15 to 2026-07-14

Expires in 55 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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