indexo.dev

superpositionday.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1029 ms crawled 2026-05-19

US · 75.119.201.26 · AS26347 New Dream Network, LLC

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Superposition Day
Description
Today is ([in]ternational) Superposition Day, but also not (and everything in between, whatever that means). Science!
Language
en
Canonical
https://superpositionday.com/

Open Graph

url
https://superpositionday.com/
title
Superposition Day
description
Today is ([in]ternational) Superposition Day, but also not (and everything in between, whatever that means). Science!

Technology

Server
Apache
Analytics
  • Google Analytics
Fonts
  • Adobe Fonts

Third-party hosts loaded (4)

  • use.typekit.net×2
  • alexanderchristiaanjacob.com×1
  • github.com×1
  • www.google-analytics.com×1

Registration

Registrar
The Registrar Company B.V.
Created
2015-02-05
Expires
2027-02-05 260 days left
Updated
2026-02-06
Name servers
  • ns1.dreamhost.com
  • ns2.dreamhost.com
  • ns3.dreamhost.com

DNS records live

NS
  • ns1.dreamhost.com
  • ns2.dreamhost.com
  • ns3.dreamhost.com
MX
  • 0 mx1.dreamhost.com
  • 0 mx2.dreamhost.com

Email authentication weak

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

Certificate (current)

R13
from 2026-04-26 to 2026-07-25
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://superpositionday.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=31536000

Links to (1)

Linked from (2)