indexo.dev

stefanzweifel.dev

.dev crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 884 ms crawled 2026-05-18

US · 104.21.90.25 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Stefan Zweifel • Full Stack Developer | stefanzweifel.dev
Description
Hi 👋. I'm a full stack developer creating things on the internet. Welcome to my personal website.
Language
en
Generator
Eleventy v3.1.5
Canonical
https://stefanzweifel.dev/

Open Graph

url
https://stefanzweifel.dev/
title
Stefan Zweifel • Full Stack Developer
description
Hi 👋. I'm a full stack developer creating things on the internet. Welcome to my personal website.

Technology

CDN
Cloudflare

Third-party hosts loaded (2)

  • stats.wnx.ch×2
  • github.com×1

Social

DNS records live

NS
  • ara.ns.cloudflare.com
  • guy.ns.cloudflare.com
MX
  • 10 in1-smtp.messagingengine.com
  • 20 in2-smtp.messagingengine.com
TXT
  • keybase-site-verification=J2OMUuXiOOe4_tBI_HSHHzIdntAS4HqTOodWyeRCX7Y
  • google-site-verification=yQdFqJkh1rA5RXobUINSEXrgxbUjUB1O-mN36Cyc0PM

Email authentication strong

SPF
v=spf1 include:spf.messagingengine.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:re+durhm10osjm@dmarc.postmarkapp.com; sp=none; aspf=r;
policy: reject (enforced) · sp=none
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-20 to 2026-07-19
Expires in 60 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://stefanzweifel.dev/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing Content Security Policy
Header values
referrer-policy
no-referrer-when-downgrade
x-frame-options
DENY
permissions-policy
interest-cohort=()
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains

Links to (4)

Linked from (2)