indexo.dev

underground-book.net

.net crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1618 ms crawled 2026-05-19

AU · 13.55.253.241 · AS16509 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Underground: Hacking, madness and obsession on the electronic frontier
Description
Underground: Hacking, madness and obsession on the electronic frontier by Suelette Dreyfus

Technology

Server
Apache

Registration

Registrar
Netregistry Wholesale Pty Ltd
Created
2008-09-09
Expires
2027-09-09 476 days left
Updated
2022-10-25
Name servers
  • dns.suburbia.org.au
  • h.ns.buddyns.com
  • k.ns.buddyns.com

DNS records live

NS
  • dns.suburbia.org.au
  • f.ns.buddyns.com
  • h.ns.buddyns.com
  • k.ns.buddyns.com
MX
  • 10 suburbia.com.au
  • 20 mail2.suburbia.org.au

Email authentication partial

SPF
v=spf1 a ip4:13.55.253.241/32 -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc@suburbia.org.au
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-07 to 2026-08-05
Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://underground-book.net/

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

Linked from (1)