indexo.dev

thinkpenguin.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1069 ms crawled 2026-05-18

US · 70.20.55.152 · AS13977 Fidium

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
ThinkPenguin.com | Penguin Laptops, Desktops, and Accessories with Linux & GNU Support
Canonical
https://www.thinkpenguin.com/

Technology

Server
nginx

Registration

Registrar
Gandi SAS
Created
2005-03-27
Expires
2030-03-27 1407 days left
Updated
2025-07-03
Name servers
  • ns1.linode.com
  • ns2.linode.com
  • ns3.linode.com
  • ns4.linode.com

DNS records live

NS
  • ns1.linode.com
  • ns2.linode.com
  • ns3.linode.com
  • ns4.linode.com
  • ns5.linode.com
MX
  • 10 mail.thinkpenguin.com

Email authentication strong

SPF
v=spf1 mx a a:kglug.org a:errtech.com ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@thinkpenguin.com
policy: reject (enforced)
DKIM
  • dkim: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzlrrrdtXuZ56PksTa1gQp604x1zN5Q5Fa8/Z+GuDGpa9UuafV8AOfLvRJkmYh+Zv16I+NP85UjFR22od1oJjx…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-03-17 to 2026-10-02
Expires in 135 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://thinkpenguin.com/

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

Linked from (2)