flyingpenguin.com

.com crawl

First seen 2026-05-13 · Last seen 2026-05-19 · ok HTTP/1.1 200 2077 ms crawled 2026-05-19

US · 151.101.131.52 · AS54113 Fastly, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title

flyingpenguin | a blog about the poetry of information security, since 1995

Language

en-US

Feeds

flyingpenguin » Feed RSS
flyingpenguin » Comments Feed RSS

Technology

Server: Apache
CMS: WordPress

Third-party hosts loaded (3)

cdn.onesignal.com×1
gmpg.org×1
infosec.exchange×1

Contact

Address: st look at George Washington.May 18, 2026

Registration

Registrar

GoDaddy.com, LLC

Created

1999-01-30

Expires

2027-01-30 254 days left

Updated

2026-01-06

Name servers

ns55.domaincontrol.com
ns56.domaincontrol.com

DNS records live

NS

ns55.domaincontrol.com
ns56.domaincontrol.com

MX

0 smtp.secureserver.net
10 mailstore1.secureserver.net

TXT

D9699226

Email authentication weak

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

Certificate (current)

R12

from 2026-04-12 to 2026-07-11

Expires in 52 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://flyingpenguin.com/

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=31557600