Mozilla.org - SEO Checker

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Overview of the SEO Check
Meta information
90% 
Page quality
81% 
Page structure
58% 
Link structure
82% 
Server
37% 
External factors
100% 
SEO Score
Response time
0.57 s
File size
87.40 kB
Words
1116
Media files
26
Number of links
48 internal / 38 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Internet para la gente, no para el lucro
The length of the page title is perfect. (343 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
¿Lo sabías? Mozilla —la organización que desarrolla Firefox— lucha para que Internet continúe siendo un recurso público mundial abierto y accesible para todos.
The length of the meta description is perfect. (999 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.mozilla.org/es-ES/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: es
Language defined in HTML: es-es
Server location: United States of America
The following language is defined by HTML: es-es
Alternate/Hreflang Links
(Somewhat important)
An URL is specified multiple times in alternate links.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
msvalidate.01B7B177115A634927D608514DA17B2574
google-site-verificationU9a6gH32vLIykvntaDToj-ytYhlZ1AfAgVEKstixQIE
description¿Lo sabías? Mozilla —la organización que desarrolla Firefox— lucha para que Internet continúe siendo un recurso público mundial abierto y accesible para todos.
langes-es
twitter:cardsummary
twitter:site@mozilla
twitter:domainmozilla.org
twitter:app:name:googleplayFirefox
twitter:app:id:googleplayorg.mozilla.firefox
twitter:app:name:iphoneFirefox
twitter:app:id:iphone989804926
twitter:app:name:ipadFirefox
twitter:app:id:ipad989804926
fb:page_id262134952380
og:typewebsite
og:site_nameMozilla
og:localees_ES
og:urlhttps://www.mozilla.org/es-ES/
og:imagehttps://www.mozilla.org/media/img/mozorg/mozilla-256.4720741d4108.jpg
og:titleInternet para la gente, no para el lucro
og:description¿Lo sabías? Mozilla —la organización que desarrolla Firefox— lucha para que Internet continúe siendo un recurso público mundial abierto y accesible para todos.
charsetutf-8

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Page quality

Content
(Critically important)
These Typos were found:
  • politico => político
This page contains 1116 words. That's ok.
30.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
14 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 17.46 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 22 tags for this page.
Image SEO
(Somewhat important)
25 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...s/mozilla/logo-word-hor.e20791bb4dd4.svgMozilla
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...efox/browser/focus/logo.aac3e33175cb.svgNo alt attribute provided
...os/firefox/monitor/logo.d97e5516f9e6.svgNo alt attribute provided
...l/img/logos/pocket/logo.17446bc33a5d.svgNo alt attribute provided
.../logos/mozilla/vpn/logo.c648f487bfb8.svgNo alt attribute provided
...ogos/firefox/relay/logo.683083c53b93.svgNo alt attribute provided
...nav/icons/icon-mdn-plus.f54475f980ab.svgNo alt attribute provided
...ogos/fakespot/logo-blue.3973b8fe9631.svgNo alt attribute provided
.../browser/developer/logo.41d42822c8fb.svgNo alt attribute provided
...icons/icon-mdn-web-docs.9ed01cfe71c7.svgNo alt attribute provided
...con-innovation-projects.11f189479119.svgNo alt attribute provided
...icons/icon-common-voice.127fa3f5dcb0.svgNo alt attribute provided
...os/firefox/browser/logo.eb1324e44442.svgNo alt attribute provided
...l/img/logos/pocket/logo.17446bc33a5d.svgNo alt attribute provided
...ogos/fakespot/logo-blue.3973b8fe9631.svgNo alt attribute provided
...irefox/relay/logo-white.d42a8b52e44c.svgNo alt attribute provided
.../logos/mozilla/vpn/logo.c648f487bfb8.svgNo alt attribute provided
...os/firefox/monitor/logo.d97e5516f9e6.svgNo alt attribute provided
...mg/home/2023/colorwaves.15f7b7e61210.jpgNo alt attribute provided
...mg/home/2023/mofo-split.e28f9f2631fc.pngNo alt attribute provided
...mg/home/2023/mofo-heart.b635826c055a.svgNo alt attribute provided
...e/2023/contribute-split.202473fa9197.pngNo alt attribute provided
.../home/2023/mozilla-dino.3affc2229c70.svgNo alt attribute provided

Page structure

H1 heading
(Critically important)
Impulsado por una misión. Impulsado por la gente.
The H1 heading is perfect.
Headings
(Important)
There are 46 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Impulsado por una misión. Impulsado por la gente.
H2 Mozilla desarrolla productos que respetan la privacidad
H2 Únete a nosotros para dar forma a una IA de confianza
H2 Entonces, ¿qué es Mozilla?
H2 Haz una donación a Mozilla Foundation hoy para garantizar que Internet permanezca abierto y accesible para todos.
H2 Únete a la lucha por un internet saludable
H2 Esa vez que regalamos nuestro código fuente...
H2 Únete a la comunidad
H2 Empresa
H2 Recursos
H2 Ayuda
H2 Desarrolladores
H2 Seguir a @Mozilla
H2 Seguir a @Firefox
H3 Navegación privada y segura
H3 Los artículos más intrigantes de la web.
H3 Detecta reseñas falsas sobre compras
H3 Oculta tu número de teléfono y correo electrónico a los spammers
H3 Una VPN en la que puedes confiar
H3 Protege tu información privada de los recopiladores de datos
H3 Recibe noticias de Firefox
H3 ¡Gracias!
H4 Firefox para escritorio
H4 Firefox para Android
H4 Firefox para iOS
H4 Firefox Focus
H4 Blog de Firefox
H4 Notas de la versión
H4 Mozilla Monitor
H4 Facebook Container
H4 Pocket
H4 Mozilla VPN
H4 Firefox Relay
H4 MDN Plus
H4 Fakespot
H4 Manifiesto de Mozilla
H4 Mozilla Foundation
H4 Liderazgo
H4 Involúcrate
H4 Empleos
H4 Blog de Mozilla
H4 Impacto
H4 Firefox Developer Edition
H4 MDN Web Docs
H4 Proyectos de innovación de Mozilla
H4 Common Voice
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are too many external links (38) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.mozilla.org/es-ES/IMG-ALT Mozilla
/firefox/download/thanks/Descargar Firefox
/es-ES/privacy/firefox/Aviso de privacidad de Firefox
/es-ES/products/vpn/Obtener Mozilla VPN
/es-ES/firefox/Navegadores Firefox
/es-ES/firefox/new/Firefox para escritorio Obtén el navegador respaldado por una organización sin ánimo de lucro para Windows, Mac o Linux.
/es-ES/firefox/browsers/mobile...Firefox para Android Obtén el navegador móvil personalizable para teléfonos inteligentes Android.
/es-ES/firefox/browsers/mobile...Firefox para iOS Obtén el navegador móvil para tu iPhone o iPad.
/es-ES/firefox/browsers/mobile...Firefox Focus Simplemente navegación móvil privada.
https://blog.mozilla.org/firef...External Subdomain Blog de Firefox Lee acerca de las nuevas características de Firefox y maneras de mantenerte seguro en línea.
/firefox/132.0.2/releasenotes/Notas de la versión Obtén los detalles de las últimas actualizaciones de Firefox.
/es-ES/firefox/Ver todos los Navegadores Firefox
/es-ES/products/Productos
https://monitor.mozilla.org/?u...External Subdomain Mozilla Monitor Comprueba si tu correo electrónico apareció en la filtración de datos de una empresa.
/es-ES/firefox/facebookcontainer/Facebook Container Ayuda a evitar que Facebook recopile tus datos fuera de su sitio.
https://getpocket.com/firefox_...External Pocket Guarda y descubre las mejores historias de toda la web.
/es-ES/products/vpn/Mozilla VPN Obtén protección más allá de tu navegador, en todos tus dispositivos.
https://relay.firefox.com/?utm...External Subdomain Firefox Relay Regístrate para tener nuevas cuentas sin revelar tu correo electrónico.
https://developer.mozilla.org/...External Subdomain MDN Plus Nuevas funciones y herramientas para una experiencia personalizada en MDN
https://fakespot.com/?utm_sour...External Fakespot Utiliza IA para detectar reseñas falsas y estafas
/es-ES/products/Ver todos los productos
/es-ES/about/Quiénes somos
/es-ES/about/manifesto/Manifiesto de Mozilla Conoce más acerca de los valores y principios que guían nuestra misión.
https://foundation.mozilla.org...External Subdomain Mozilla Foundation Conoce a la organización sin ánimo de lucro detrás de Firefox que lucha por una web mejor.
/about/leadership/Liderazgo Conoce al equipo que está construyendo tecnología para un internet mejor.
/es-ES/contribute/Involúcrate Únete a la lucha por un internet saludable.
/es-ES/careers/Empleos Trabaja para una organización motivada por la misión de hacer productos que priorizan a las personas.
https://blog.mozilla.org/?utm_...External Subdomain Blog de Mozilla Conoce más sobre Mozilla y los problemas que nos importan.
/es-ES/impact/Impacto Descubre cómo estamos haciendo que Internet sea más inclusivo y sostenible
/es-ES/about/Más acerca de Mozilla
https://future.mozilla.org/?ut...External Subdomain Innovación
/es-ES/firefox/developer/Firefox Developer Edition Obtén el navegador Firefox creado solo para desarrolladores.
https://developer.mozilla.org/...External Subdomain MDN Web Docs Revisa la página principal de los recursos para el desarrollador web.
https://future.mozilla.org/?ut...External Subdomain Proyectos de innovación de Mozilla Descubre formas de dar vida a tus brillantes ideas.
https://commonvoice.mozilla.or...External Subdomain Common Voice Dona tu voz para que el futuro de la web pueda escuchar a todos.
/es-ES/firefox/new/Obtén Firefox
https://getpocket.com/?utm_sou...External Obtener Pocket
https://fakespot.com/?utm_sour...External Obtener Fakespot
https://relay.firefox.com/?utm...External Subdomain Obtén Relay
/es-ES/products/vpn/Consigue Mozilla VPN
https://monitor.mozilla.org/?u...External Subdomain Obtén Monitor
https://blog.mozilla.org/en/mo...External Subdomain Leer más
https://mozilla.vc/?utm_source...External Mozilla Ventures
https://mozilla.ai/?utm_source...External Mozilla AI
https://foundation.mozilla.org...External Subdomain Saber más sobre la Mozilla Foundation
https://foundation.mozilla.org...External Subdomain Donar
/es-ES/contribute/Colabora con Mozilla
/es-ES/about/Saber más sobre Mozilla
/es-ES/privacy/websites/esta declaración de privacidad
https://www.mozilla.org/es-ES/Text duplicate Mozilla
/es-ES/about/manifesto/Manifiesto de Mozilla
https://blog.mozilla.org/categ...External Subdomain Área de prensa
https://blog.mozilla.org/?utm_...External Subdomain Blog de Mozilla
/es-ES/careers/Empleos
/es-ES/contact/Contacto
https://foundation.mozilla.org...External Subdomain Text duplicate Donar
/es-ES/privacy/Centro de privacidad
/es-ES/advertising/Anúnciate con Mozilla
https://mozilla.design/?utm_so...External Estándares de la marca
https://support.mozilla.org/?u...External Subdomain Soporte de producto
https://bugzilla.mozilla.org/?...External Subdomain Abre un bug
https://pontoon.mozilla.org/?u...External Subdomain Traducir Mozilla
/es-ES/firefox/developer/Developer Edition
/es-ES/firefox/channel/desktop/Beta
/es-ES/firefox/channel/android/Beta para Android
/es-ES/firefox/channel/desktop/Nightly
/es-ES/firefox/channel/android/Nightly para Android
/es-ES/firefox/enterprise/Enterprise
https://firefox-source-docs.mo...External Subdomain Herramientas
https://twitter.com/mozillaExternal X (anteriormente Twitter) (@mozilla)
https://www.instagram.com/mozi...External Subdomain Instagram (@mozilla)
https://www.linkedin.com/compa...External Subdomain LinkedIn (@mozilla)
https://www.tiktok.com/@mozillaExternal Subdomain TikTok (@mozilla)
https://open.spotify.com/show/...External Subdomain Spotify (@mozilla)
https://twitter.com/firefox_esExternal X (anteriormente Twitter) (@firefox)
https://www.instagram.com/fire...External Subdomain Instagram (@firefox)
https://www.youtube.com/user/f...External Subdomain YouTube (@firefoxchannel)
https://www.mozilla.org/locales/Idioma
/es-ES/privacy/websites/Política de privacidad del sitio web
/es-ES/privacy/websites/cookie...Cookies
/es-ES/about/legal/Legal
/es-ES/about/governance/polici...Pautas para la participación en la comunidad
/es-ES/about/this-site/Acerca de este sitio
https://www.mozilla.org/es-ES/Mozilla Corporation
https://foundation.mozilla.org...External Subdomain Mozilla Foundation
/es-ES/foundation/licensing/we...Creative Commons

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.mozilla.org/es-ES/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.57 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (87 kB).

HTTP Response Header

NameValue
servergranian
content-typetext/html; charset=utf-8
x-frame-optionsDENY
content-security-policyscript-src tagmanager.google.com *.mozilla.net s.ytimg.com 'unsafe-inline' 'self' 'unsafe-eval' www.googletagmanager.com www.google-analytics.com www.youtube.com js.stripe.com *.mozilla.org *.mozilla.com; font-src 'self' *.mozilla.org *.mozilla.com *.mozilla.net; default-src 'self' *.mozilla.org *.mozilla.com *.mozilla.net; child-src *.mozilla.net 'self' www.googletagmanager.com www.youtube.com www.google-analytics.com js.stripe.com *.mozilla.org *.mozilla.com accounts.firefox.com; frame-src *.mozilla.net 'self' www.googletagmanager.com www.youtube.com www.google-analytics.com js.stripe.com *.mozilla.org *.mozilla.com accounts.firefox.com; connect-src region1.google-analytics.com o1069899.ingest.sentry.io *.mozilla.net cjms.services.mozilla.com 'self' www.googletagmanager.com https://accounts.firefox.com/ www.google-analytics.com stage.cjms.nonprod.cloudops.mozgcp.net o1069899.sentry.io *.mozilla.org *.mozilla.com sentry.prod.mozaws.net; img-src images.ctfassets.net *.mozilla.net 'self' www.googletagmanager.com www.google-analytics.com mozilla.org data: *.mozilla.org *.mozilla.com; style-src *.mozilla.net 'unsafe-inline' 'self' *.mozilla.org *.mozilla.com
content-security-policy-report-onlyscript-src tagmanager.google.com *.mozilla.net s.ytimg.com 'unsafe-inline' 'self' 'unsafe-eval' www.googletagmanager.com www.google-analytics.com www.youtube.com js.stripe.com *.mozilla.org *.mozilla.com; font-src 'self' *.mozilla.org *.mozilla.com *.mozilla.net; default-src 'self' *.mozilla.org *.mozilla.com *.mozilla.net; child-src *.mozilla.net 'self' www.googletagmanager.com www.youtube.com www.google-analytics.com js.stripe.com *.mozilla.org *.mozilla.com accounts.firefox.com; frame-ancestors 'none'; frame-src *.mozilla.net 'self' www.googletagmanager.com www.youtube.com www.google-analytics.com js.stripe.com *.mozilla.org *.mozilla.com accounts.firefox.com; connect-src region1.google-analytics.com o1069899.ingest.sentry.io *.mozilla.net cjms.services.mozilla.com 'self' www.googletagmanager.com https://accounts.firefox.com/ www.google-analytics.com stage.cjms.nonprod.cloudops.mozgcp.net o1069899.sentry.io *.mozilla.org *.mozilla.com sentry.prod.mozaws.net; img-src images.ctfassets.net *.mozilla.net 'self' www.googletagmanager.com www.google-analytics.com mozilla.org data: *.mozilla.org *.mozilla.com; style-src *.mozilla.net 'self' *.mozilla.org *.mozilla.com
cache-controlmax-age=600
expiresSun, 17 Nov 2024 15:13:06 GMT
x-clacks-overheadGNU Terry Pratchett
content-languagees-ES
etag"5c82a928d01decad826faf787d477a84"
x-backend-serverbedrock-6c67b4bf4b-xw9pq.gcp-us-west1
strict-transport-securitymax-age=31536000
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
cross-origin-opener-policysame-origin
via1.1 google, 1.1 varnish
accept-rangesbytes
age0
dateSun, 17 Nov 2024 15:34:17 GMT
x-served-bycache-fra-etou8220143-FRA
x-cacheHIT
x-cache-hits0
x-timerS1731857657.794161,VS0,VE328
content-length89530
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 289 referring domains.
This page has 22,129 backlinks.
This page has backlinks from 237 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

user-agent: *
disallow: /*/firstrun/
disallow: /*/newsletter/existing/
disallow: /*/whatsnew/
disallow: /*/etc/
Sitemap: https://www.mozilla.org/sitemap.xml

Similar sites

Search preview

www.mozilla.org › es-ES
Internet para la gente, no para el lucro
¿Lo sabías? Mozilla —la organización que desarrolla Firefox— lucha para que Internet continúe siendo un recurso público mundial abierto y accesible para todos.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
internet66%Check
Mozilla64%Check
de Internet61%Check
de Mozilla60%Check
Mozilla Firefox60%Check
Firefox56%Check
de Firefox56%Check
desarrolla54%Check
Mozilla VPN54%Check
Internet saludable54%Check
Show more keywords and terms

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