zimmergren.net

.net crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 431 ms crawled 2026-06-03

NL · 20.50.153.39 · AS8075 Microsoft Corporation

Reputation 100/100

Classifying

HTML metadata

Title
Tobias Zimmergren | CTO, Cloud, Security, Engineering Leadership
Description
CTO & co-founder · Microsoft MVP · Podcaster — 20+ years building, securing, and scaling software in the Microsoft ecosystem.
Language
en
Canonical
https://zimmergren.net/
Feeds

Open Graph

url
https://zimmergren.net/
title
Tobias Zimmergren | CTO, Cloud, Security, Engineering Leadership
site name
Tobias Zimmergren
description
CTO & co-founder · Microsoft MVP · Podcaster — 20+ years building, securing, and scaling software in the Microsoft ecosystem.

Technology

Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • fonts.googleapis.com×3
  • fonts.gstatic.com×1
  • www.googletagmanager.com×1

Social

Contact

Email

Registration

Registrar
Cloudflare, Inc.
Created
2007-07-06
Expires
2033-07-06 2589 days left
Updated
2023-10-19
Name servers
  • kai.ns.cloudflare.com
  • lucy.ns.cloudflare.com

DNS records live

NS
  • kai.ns.cloudflare.com
  • lucy.ns.cloudflare.com
MX
  • 0 zimmergren-net.mail.protection.outlook.com
TXT
  • _arkg79i15lmgpsiells7sggzg6a5jrr

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1;p=reject;pct=100;rua=mailto:easy88005@easydmarc.com,mailto:dmarc@zimmergren.net;ruf=mailto:ruf@rep.easydmarc.com;ri=3600;fo=1
policy: reject (enforced)
DKIM
Show 4 DKIM selectors
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDP8bUA7P3OeiMW6p/dPAHM6Tlul3vkT4yxHIul4dWg6uj4HkDImH1JzFdLEpS4CD6J5Cz//BSWxIhgrdzGX/…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvFXqEqs43+CBCoqkhX6gEb1l7dxri8vyXhRgMz55kXB8BHc4w9Cokm5d59syBdAm3Oh0eTIACBq+U2…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

GeoTrust TLS RSA CA G1
from 2026-03-30 to 2026-10-01
Expires in 119 days

HTTP security headers

Header hygiene 60/100 Checked live page: https://zimmergren.net/

present
  • strict-transport-security
  • x-content-type-options
  • referrer-policy
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-content-type-options
nosniff
strict-transport-security
max-age=10886400; includeSubDomains; preload

Links to (4)

Linked from (1)