indexo.dev

jakobgreenfeld.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 268 ms crawled 2026-05-19

US · 185.199.108.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Home – Jakob Greenfeld
Description
Experiments in Permissionless Entrepreneurship
Feeds

Open Graph

title
Home
description
Experiments in Permissionless Entrepreneurship

Technology

CDN
Fastly
Server
GitHub.com
Analytics
  • Plausible
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • fonts.googleapis.com×5
  • plausible.io×2
  • code.jquery.com×1
  • fonts.gstatic.com×1
  • raw.githubusercontent.com×1

Social

Registration

Registrar
NameCheap, Inc.
Created
2020-07-20
Expires
2026-07-20 60 days left
Updated
2025-06-20
Name servers
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com

DNS records live

NS
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com
MX
  • 10 mx1.improvmx.com
  • 20 mx2.improvmx.com
Verified for
  • Google

Email authentication weak

SPF
v=spf1 a:my.jakobgreenfeld.com include:spf.improvmx.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-21 to 2026-06-19
Expires in 29 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (5)

Linked from (2)