indexo.dev

underjord.io

.io crawl

First seen 2026-04-13 · Last seen 2026-05-03 · ok HTTP/1.1 200 648 ms crawled 2026-05-07

US · 3.164.206.11 · AS16509 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Underjord
Description
Artisanal software development, quality productions and some teaching
Language
en
Generator
Hugo 0.83.1
Feeds

Open Graph

url
https://underjord.io/
site name
Underjord

Technology

CDN
Amazon CloudFront
Server
AmazonS3
CMS
Hugo

Third-party hosts loaded (2)

  • assets.fireside.fm×1
  • js.createsend1.com×1

Social

Contact

Email

DNS records live

NS
  • ns-1015.awsdns-62.net
  • ns-1034.awsdns-01.org
  • ns-1539.awsdns-00.co.uk
  • ns-45.awsdns-05.com
MX
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication strong

SPF
v=spf1 include:_spf.google.com include:_spf.createsend.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlpmKh3P9EdHkmyex5n7xZTtepkFpQDoA8otA/p33zjILhzcnZm/QXy7TfyuKNsV+PJRhZBBxUVb5YD…
selectors probed

Certificate (current)

Amazon RSA 2048 M01
from 2025-12-06 to 2027-01-04
Expires in 229 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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)