indexo.dev

mathusee.com

.com crawl

First seen 2026-05-30 · Last seen 2026-06-01 · ok HTTP/1.1 200 1035 ms crawled 2026-05-31

US · 34.71.65.253 · AS396982 Google LLC

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Math-U-See
Description
Math-U-See focuses on Building Understanding. What began as a simple, effective way to show students “why” math works has grown into an award-winning K-12 program, products focused on specific intervention strategies, and a classroom system that can be used alongside any existing curriculum. Find the product that’s right for you!
Language
en-US
Canonical
https://mathusee.com/
Feeds

Open Graph

url
https://mathusee.com/
title
Math-U-See
locale
en_US
site name
Math-U-See
description
Math-U-See focuses on Building Understanding. What began as a simple, effective way to show students “why” math works has grown into an award-winning K-12 program, products focused on specific intervention strategies, and a classroom system that can be used alongside any existing curriculum. Find the product that’s right for you!

Technology

Server
nginx
CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts
  • Google Fonts
Third-party hosts loaded (10)
  • cdnjs.cloudflare.com×3
  • cdn.jwplayer.com×2
  • fonts.googleapis.com×2
  • js.hs-scripts.com×2
  • kit.fontawesome.com×2
  • use.typekit.net×2
  • cdn.userway.org×1
  • js.hsforms.net×1
  • pro.fontawesome.com×1
  • www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar
Tucows Domains Inc.
Created
1997-05-29
Expires
2027-05-28 358 days left
Updated
2026-05-27
Name servers
  • ns1.hover.com
  • ns2.hover.com

DNS records live

NS
  • ns1.hover.com
  • ns2.hover.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
  • 045g4pjk07m6y5m63ktgldgxrtwzpfkg
Verified for
  • Google
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:sendgrid.net include:spf.protection.outlook.com include:_spf.google.com include:20645761.spf02.hubspotemail.net ~all
softfail (~all)
DMARC
not published
DKIM
  • smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…
selectors probed

Certificate (current)

R12
from 2026-05-06 to 2026-08-04
Expires in 61 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (10)

Linked from (5)