indexo.dev

justinmayer.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 257 ms crawled 2026-05-18

DE · 159.69.90.127 · AS24940 Hetzner Online GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Justin Mayer // Investor • Founder • Developer • Speaker
Description
Justin Mayer is an investor, SaaS founder, software developer, and open-source maintainer.
Language
en
Feeds

Technology

Server
Caddy

Social

Registration

Registrar
Porkbun LLC
Created
2001-12-11
Expires
2032-12-11 2397 days left
Updated
2023-09-08
Name servers
  • ns1.raven.fortressa.com
  • ns2.raven.fortressa.com

DNS records live

NS
  • ns1.raven.fortressa.com
  • ns2.raven.fortressa.com
MX
  • 10 raven.fortressa.com

Email authentication strong

SPF
v=spf1 mx -all
strict (-all)
DMARC
v=DMARC1; p=quarantine;
policy: quarantine
DKIM
  • mail: v=DKIM1; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtrhuruHjauRGThMHSCunXGCYY6cBzckkLiqJUEztVug6CyFHyDzx7cNEkmpsoj63zgFcp…
selectors probed

Certificate (current)

R12
from 2026-04-09 to 2026-07-08
Expires in 49 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://justinmayer.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 (1)