simplified.dev

.dev crawl

First seen 2026-05-10 · Last seen 2026-05-10 · ok HTTP/1.1 200 1108 ms crawled 2026-05-16

US · 172.67.157.80 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

sector tech type homepage

HTML metadata

Title
Home | Simplified.
Description
Essays by CP Clermont on Web Performance.
Language
en
Generator
Gatsby 3.4.2
Canonical
http://simplified.local/
Feeds

Open Graph

title
Home
description
Essays by CP Clermont on Web Performance.

Technology

CDN
Cloudflare
CMS
Gatsby
Analytics
  • Google Analytics

Third-party hosts loaded (3)

  • www.google-analytics.com×2
  • f.convertkit.com×1
  • simplified.local×1

DNS records live

NS
  • dana.ns.cloudflare.com
  • dion.ns.cloudflare.com
MX
Show 6 MX records
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 15 xh5fb4ra3ezfg4wqem3herwpbyelac7g5d4fhr3ierfdvgbck6qa.mx-verification.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication weak

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

Certificate (current)

WE1
from 2026-04-05 to 2026-07-04
Expires in 46 days

HTTP security headers

Header hygiene 55/100 Checked live page: https://simplified.dev/

present
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
unsafe-url
x-frame-options
DENY
x-content-type-options
nosniff

Linked from (1)