julianduque.co

.co crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 1241 ms crawled 2026-05-08

US · 66.33.60.66 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

sector media news type blog

HTML metadata

Title
Home | Julián Duque
Description
AI, Developer Relations, Education, and Community
Language
en
Canonical
/

Open Graph

url
/
title
Home | Julián Duque
image:url
/assets/images/opengraph.png?hash=467165aa30f17a1ecb95398157cbb814
description
AI, Developer Relations, Education, and Community

Technology

CDN
Vercel
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • i.ytimg.com×23
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • ns1.vercel-dns.com
  • ns2.vercel-dns.com
MX
  • 10 mail.protonmail.ch
  • 20 mailsec.protonmail.ch
TXT
  • openai-domain-verification=dv-9PW2gzd2oE30q6aGKjUVoYMa
  • protonmail-verification=a0fa7c253df15155f3811c8f6a3394c296d4c0ed

Email authentication weak

SPF
v=spf1 include:_spf.protonmail.ch mx ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-29 to 2026-06-27
Expires in 39 days

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.julianduque.co/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Links to (10)

Linked from (1)