indexo.dev

jensnikolaus.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 300 ms crawled 2026-05-07

US · 172.67.180.38 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Generalist designer, dev tools — Jens Nikolaus
Description
Personal site of Jens Nikolaus — designer and generalist writing about design, AI, and building products.
Language
en
Canonical
https://jensnikolaus.com/

Open Graph

url
https://jensnikolaus.com/
title
Generalist designer, dev tools — Jens Nikolaus
locale
en_US
site name
Jens Nikolaus
description
Personal site of Jens Nikolaus — designer and generalist writing about design, AI, and building products.

Technology

CDN
Cloudflare

Registration

Registrar
1API GmbH
Created
2015-12-28
Expires
2026-12-28 222 days left
Updated
2026-04-21
Name servers
  • clara.ns.cloudflare.com
  • melnicoff.ns.cloudflare.com

DNS records live

NS
  • clara.ns.cloudflare.com
  • melnicoff.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • google-site-verification=H4sEboY6ysBvraqk7auvp7FVuNwm1Pbyt3wkVr5pQNE
  • google-site-verification=cZHhUYSTAhTljk2dZIemyuhYobcDHaoBcXvxGjaJKpc

Email authentication weak

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

Certificate (current)

WE1
from 2026-04-22 to 2026-07-21
Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (4)

Linked from (1)