indexo.dev

osterlund.xyz

.xyz crawl

First seen 2026-04-21 · Last seen 2026-05-15 · ok HTTP/1.1 200 3310 ms crawled 2026-05-15

US · 3.164.68.114 · AS16509 Amazon.com, Inc.

Reputation 87/100 weak security headers no dmarc policy

sector tech type homepage

HTML metadata

Title
Home - Sebastian Österlund
Description
Sebastian's blog about programming, technology and everything else.
Language
en
Feeds

Technology

CDN
Amazon CloudFront
Server
AmazonS3
CMS
Gatsby

Third-party hosts loaded (2)

  • cdnjs.cloudflare.com×2
  • api.qrserver.com×1

Social

Registration

Registrar
Namecheap
Created
2015-10-04
Expires
2026-10-04 137 days left
Updated
2025-10-01
Name servers
  • dina.ns.cloudflare.com
  • gerald.ns.cloudflare.com

DNS records live

NS
  • dina.ns.cloudflare.com
  • gerald.ns.cloudflare.com
MX
  • 3 route3.mx.cloudflare.net
  • 42 route1.mx.cloudflare.net
  • 72 route2.mx.cloudflare.net
TXT
  • keybase-site-verification=SaADHuuai3Gi44tuRWRf3K9Bvk2RavjgVN3xi1v8mYg
  • kpn-domain-verification=8dbdab7504b843988d0b733c0483e941

Email authentication weak

SPF
v=spf1 include: smtp.spf.ziggo.nl include:spf.ews.kpnxchange.com include:_spf.mx.cloudflare.net ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Amazon RSA 2048 M04
from 2025-07-05 to 2026-08-03
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://osterlund.xyz/

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

Links to (2)

Linked from (3)