mheducation.es

.es crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 933 ms crawled 2026-05-18

IE · 52.208.137.219 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: McGraw Hill Soluciones Educativas Innovadoras
Description: Explora las innovadoras soluciones educativas de McGraw Hill, diseñadas para el aprendizaje en el aula y a distancia. Transformando la educación, transformando vidas.
Language: es

Technology

CMS: Gatsby

Analytics

Google Tag Manager

Third-party hosts loaded (4)

play.vidyard.com×4
www.google.com×1
www.googletagmanager.com×1
www.gstatic.com×1

Social

DNS records live

NS

pdns85.ultradns.biz
pdns85.ultradns.com
pdns85.ultradns.net
pdns85.ultradns.org

Email authentication no MX

SPF: v=spf1 mx -all
strict (-all)
DMARC: v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
policy: reject (enforced)
DKIM: no key found at common selectors

Certificate (current)

Amazon RSA 2048 M04

from 2025-08-16 to 2026-09-13

Expires in 116 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.mheducation.es/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options

findings

CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
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strict-transport-security: max-age=31536000; includeSubDomains

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