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tendencias21.es

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First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 7454 ms crawled 2026-05-08

FR · 154.56.81.112 · AS174 Cogent Communications, LLC

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Tendencias 21. Ciencia, tecnología, sociedad y cultura
Description
Revista electrónica de ciencia, tecnología, sociedad y cultura. ISSN 2174-6850
Language
es
Canonical
https://www.tendencias21.es
Feeds

Open Graph

url
https://www.tendencias21.es
title
Tendencias 21. Ciencia, tecnología, sociedad y cultura
site name
Tendencias 21. Ciencia, tecnología, sociedad y cultura
description
Revista electrónica de ciencia, tecnología, sociedad y cultura. ISSN 2174-6850

Technology

Server
nginx
Analytics
  • Google Tag Manager
Ads
  • Google AdSense
Fonts
  • Google Fonts
Social widgets
  • LinkedIn Widget
  • Twitter Widget
Third-party hosts loaded (9)
  • pagead2.googlesyndication.com×3
  • cdnjs.cloudflare.com×2
  • cdn.ampproject.org×1
  • fonts.googleapis.com×1
  • platform.linkedin.com×1
  • platform.twitter.com×1
  • tendencias21.feedsportal.com×1
  • www.facebook.com×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • dns1.wmaker.net
  • dns2.wmaker.net
  • dns3.wmaker.net
MX
  • 10 smtp01.wmaker.net
  • 20 smtp02.wmaker.net

Email authentication weak

SPF
v=spf1 include:servers.mcsv.net ip4:213.251.158.192/27 ip4:94.23.134.224/27 ip4:154.56.81.64/26 ip4:130.117.9.64/26 mx ptr ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; t=y; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCxYV/F+XqEuEQjVv7dFRaIhR5+t/LMVpoQF+Ql7dEKFU4cZ+31XeUved7CmsrFadE9lXQIx6ntj8fxT…
selectors probed

Certificate (current)

E8
from 2026-02-25 to 2026-05-26
Expires in 5 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.tendencias21.es/

present
  • strict-transport-security
  • content-security-policy
findings
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
upgrade-insecure-requests
strict-transport-security
max-age=31536000;

Links to (3)

Linked from (1)