indexo.dev

mpetroff.net

.net crawl

First seen 2026-04-22 · Last seen 2026-05-15 · ok HTTP/1.1 200 797 ms crawled 2026-05-15

US · 54.165.114.10 · AS14618 Amazon.com, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Matthew Petroff | mpetroff.net
Description
A postdoc in cosmology at CfA, Matthew Petroff's interests include photography, cartography, embedded electronics design, and robotics.
Language
en-US
Canonical
https://mpetroff.net/
Feeds

Technology

Server
Apache
CMS
WordPress
Analytics
  • Google Analytics
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • fonts.googleapis.com×1
  • gmpg.org×1
  • www.google-analytics.com×1

Registration

Registrar
Squarespace Domains II LLC
Created
2010-06-20
Expires
2029-06-20 1128 days left
Updated
2024-04-21
Name servers
  • ns-cloud-d1.googledomains.com
  • ns-cloud-d2.googledomains.com
  • ns-cloud-d3.googledomains.com
  • ns-cloud-d4.googledomains.com

DNS records live

NS
  • ns-cloud-d1.googledomains.com
  • ns-cloud-d2.googledomains.com
  • ns-cloud-d3.googledomains.com
  • ns-cloud-d4.googledomains.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • google-site-verification=n2iKuJuKqzFJwU9sAk_WbY-JbMH0Z3bCN6ZswCEPuak

Email authentication weak

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; t=y; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDMMfmUQT7HZv4+oKMQY4fR/8e9n5cQvNp6s3n77HysbrJYQhv9ek0YUhV9REJxzdc90CyPYAMnkz1g3…
selectors probed

Certificate (current)

R12
from 2026-04-15 to 2026-07-14
Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://mpetroff.net/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=10886400; includeSubdomains; preload

Links to (3)

Linked from (1)