indexo.dev

simson.io

.io crawl

First seen 2026-05-30 · Last seen 2026-05-30 · ok HTTP/1.1 200 210 ms crawled 2026-05-31

US · 185.199.111.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

sector tech type homepage

HTML metadata

Title
Jan Simson
Description
Jan Simsons personal website, check out some of the projects I got to work on and say hi!
Canonical
/

Technology

CDN
Fastly
Server
GitHub.com
jQuery
3.4.1 known XSS (<3.5)

Social

Contact

Email

DNS records live

NS
  • curitiba.ns.porkbun.com
  • fortaleza.ns.porkbun.com
  • maceio.ns.porkbun.com
  • salvador.ns.porkbun.com
MX
  • 10 mx1.improvmx.com
  • 20 mx2.improvmx.com

Email authentication weak

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

Certificate (current)

R13
from 2026-04-19 to 2026-07-18
Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://simson.io/

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

Links to (13)

Linked from (1)