indexo.dev

sage-para-estudiantes.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 525 ms crawled 2026-05-19

US · 68.178.222.132 · AS398101 GoDaddy.com, LLC

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Sage para estudiantes
Description
Una de las mejores guías introductorias al sistema de álgebra computacional SageMath. Adecuado para estudiantes de cálculo multivariado, ecuaciones diferenciales o álgebra lineal.

Technology

Server
Apache

Third-party hosts loaded (2)

  • img1.wsimg.com×1
  • rf.revolvermaps.com×1

Registration

Registrar
GoDaddy.com, LLC
Created
2019-06-26
Expires
2026-06-26 36 days left
Updated
2025-06-24
Name servers
  • ns43.domaincontrol.com
  • ns44.domaincontrol.com

DNS records live

NS
  • ns43.domaincontrol.com
  • ns44.domaincontrol.com

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

sage-para-estudiantes.discrete-math-hub.com
from 2019-06-26 to 2020-06-25
Expired 2156 days ago

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://sage-para-estudiantes.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (3)

Linked from (1)