indexo.dev

derf.net

.net crawl

First seen 2026-04-20 · Last seen 2026-05-16 · ok HTTP/1.1 200 2854 ms crawled 2026-05-13

US · 23.251.153.26 · AS396982 Google LLC

Reputation 62/100 wrong cert weak security headers no dmarc policy

Classifying

HTML metadata

Title
derf content, blog-style (www.derf.net)
Feeds

Technology

Server
Apache

Contact

Email

Registration

Registrar
Tucows Domains Inc.
Created
1998-07-17
Expires
2026-07-16 58 days left
Updated
2025-06-17
Name servers
  • ns5.dnsmadeeasy.com
  • ns6.dnsmadeeasy.com
  • ns7.dnsmadeeasy.com

DNS records live

NS
  • ns5.dnsmadeeasy.com
  • ns6.dnsmadeeasy.com
  • ns7.dnsmadeeasy.com
MX
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 10 aspmx4.googlemail.com
  • 10 aspmx5.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication weak

SPF
v=spf1 mx include:gmail.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

R13
from 2026-03-24 to 2026-06-22
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://www.derf.net/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (23)

Linked from (2)