Asociacion-zerynthia.org - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
87% 
Page structure
58% 
Link structure
83% 
Server
73% 
External factors
100% 
SEO Score
Response time
0.80 s
File size
86.00 kB
Words
3393
Media files
26
Number of links
44 internal / 33 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Asociación ZERYNTHIA
The length of the page title is perfect. (217 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
ZERYNTHIA es una Asociación de ámbito nacional (España) sin ánimo de lucro, que se encarga del estudio, divulgación y conservación de las mariposas y los lugares donde habitan.
The meta description is too long: 1126 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: es
Language defined in HTML: es
Server location: United States of America
The following language is defined by HTML: es
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
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
authorDGL Visual
descriptionZERYNTHIA es una Asociación de ámbito nacional (España) sin ánimo de lucro, que se encarga del estudio, divulgación y conservación de las mariposas y los lugares donde habitan.
keywordsAsociacion Zerynthia,Mariposas
viewportwidth=device-width, initial-scale=1
msapplication-TileColor#f50606
theme-color#ffffff
langes
content-typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
These Typos were found:
  • nº => n.º
The average number of words per sentence of 25.01 words is high.
This page contains 3393 words. That's ok.
28.8% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
69 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
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)
Some tags are too long. With 78 characters this one is longer than 70 characters:
"asociación española para la protección de las mariposas y su medio (zerynthia)"
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
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
/images/logo.svgZerynthia Logo
/images/logo.svgZerynthia Logo
/images/index/bg.jpgZerynthia
/images/logo.svgZerynthia Logo
/images/BC_header.pngButterfly Conservation Europe
/images/vuelo.jpgEn vuelo
/images/index/socios/ornitho.jpgOrnitho
/images/index/socios/aranzadi.jpgAranzadi
/images/index/socios/GBIF.jpgGBIF
/images/index/socios/inaturalist.jpgiNaturalist
/images/index/socios/ataria.jpgAtaria
/images/index/socios/butterflymigration.jpgButterfly Migration
...s/index/socios/butterflyconservation.jpgButterfly Conservation Europe
/images/index/socios/eBMS.JPGeBMS
/images/index/socios/ibe.jpgIbe
/images/index/socios/naturgunea.jpgNaturgunea
/images/index/socios/FCQ.jpgFCQ
/images/index/socios/LGF.jpgLGF
/images/index/socios/siece.jpgSIECE
/images/index/socios/EMN.jpgEuropean Month nights
/images/index/socios/COBE.jpgCOBE
...ges/index/socios/national_month_week.jpgNational moth week
/images/index/socios/rpk.jpgRPK
/images/index/socios/butroi.jpgButroi
/images/index/socios/odor_naturae.jpgOdor Naturae
Video URLWidthHeight
/images/videos/promocional.webm

Page structure

H1 heading
(Critically important)
Bienvenido a la asociación
The H1 heading is perfect.
Headings
(Important)
There are 52 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 Bienvenido a la asociación
H2 Nuestros pilares
H2 Ventajas de ser socio
H2 Nuestros logros
H2 Colaboraciones permanentes
H3 Publicaciones
H3 Autorizaciones administrativas
H3 Contribuir
H3 Colaborar
H3 Materiales
H3 Actividades
H3 Formación
H3 Boletín de noticias
H3 AVISO LEGAL
H3 DERECHOS DE AUTOR
H3 INFORMACIÓN LEGAL SOBRE EL TRATAMIENTO DE LOS DATOS DE CARÁCTER PERSONAL
H4 Investigación
H4 Divulgación
H4 Conservación
H4 Síguenos en nuestras redes
H4 INFORMACIÓN LEGAL
H4 TÉRMINOS DE USO Y CONDICIONES GENERALES
H4 ACTUALIDAD Y MODIFICACIÓN DE LA INFORMACIÓN
H4 CONTENIDOS
H4 NAVEGACIÓN, ACCESO Y SEGURIDAD
H4 PROPIEDAD INTELECTUAL E INDUSTRIAL
H4 INFORMACIÓN SOBRE COOKIES
H4 LEGISLACIÓN APLICABLE
H4 ¿Quién es el Responsable del tratamiento?
H4 ¿Para qué tratamos los datos personales que nos facilitas?
H4 ¿Cuál es la legitimación para el tratamiento de los datos personales?
H4 ¿Durante cuánto tiempo conservaremos los datos personales?
H4 ¿A quién podemos comunicar tus datos?
H4 ¿Quiénes son nuestros Encargados del tratamiento?
H4 ¿Cuáles son tus derechos?
H4 Actualidad y modificación de la información
H5 Años
H5 Entidad en España para la conservación de lepidópteros
H5 Microrreservas
H5 Oasis
H5 Transectos
H5 Metros cuadrados protegidos para las mariposas
H5 Suscríbete a nuestro boletín para no perderte ninguna actividad que organice ZERYNTHIA:
H5 Tipo de Cookies:
H5 Cookies utilizadas en nuestra web:
H5 Configuración y aceptación de cookies:
H5 IMÁGENES
H5 DISEÑO WEB
H6 Cookies propias (técnicas):
H6 Cookies de terceros:
H6 Cookies analíticas:
H6 Cookies usadas por redes sociales:
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 (33) on this page.

Found links on this page

LinkAttributesAnchor text
/IMG-ALT Zerynthia Logo
/Text duplicate IMG-ALT Zerynthia Logo
/Inicio
/asociacionNuestra asociación
/socioCómo unirte a ZERYNTHIA
/calendarioCalendario de actividades
/contactoContacto
/MDAMariposa del año
/apariciones-en-mediosApariciones en medios
/exposicionesExposiciones
/actividadesActividades de educación ambiental
/publicaciones-divulgativasPublicaciones divulgativas
/amigo-de-las-mariposasAmigo de las mariposas
/healing-butterfliesHealing Butterflies
/encuentros-cientificosEncuentros científicos
/colaboracionesColaboraciones
/publicaciones-cientificasPublicaciones científicas
/especies-amenazadasEspecies amenazadas o singulares
/seguimiento-diurnasSeguimiento de las mariposas de España
/seguimiento-nocturnasPHALAENA. Seguimiento de mariposas nocturnas de España
/censosCensos
/observadoresObservadores de mariposas
/oasisOasis de mariposas
/microrreservasMicrorreservas
/olmosOlmos y w-blanca
/proteccion-legalProtección legal
/especiesNuestras mariposas
/familiasFamilias de mariposas
/recursosPara los más peques
/por-que-las-mariposas-son-imp...¿Por qué las mariposas son importantes?
/enlacesEnlaces externos
/galeria.phpFotografías
https://www.youtube.com/user/A...New window External Subdomain Vídeos
https://www.vlinderstichting.n...New window External Subdomain IMG-ALT Butterfly Conservation Europe
https://www.instagram.com/asoc...New window External Subdomain Síguenos en Instagram
https://bsky.app/profile/asocz...New window External Ver más contenido en Bluesky
https://www.youtube.com/watch?...External Subdomain No Text
/socio.phpHazte socio
https://www.ornitho.eus/New window External Subdomain IMG-ALT Ornitho
http://www.aranzadi.eus/New window External Subdomain IMG-ALT Aranzadi
https://www.gbif.org/New window External Subdomain IMG-ALT GBIF
https://www.inaturalist.org/New window External Subdomain IMG-ALT iNaturalist
https://www.vitoria-gasteiz.or...New window External Subdomain IMG-ALT Ataria
http://www.butterflymigration....New window External Subdomain IMG-ALT Butterfly Migration
http://www.bc-europe.eu/New window External Subdomain Text duplicate IMG-ALT Butterfly Conservation Europe
http://www.butterfly-monitorin...New window External Subdomain IMG-ALT eBMS
http://biologiaevolutiva.org/r...New window External IMG-ALT Ibe
http://www.aranguren.es/naturg...New window External Subdomain IMG-ALT Naturgunea
https://quebrantahuesos.org/New window External IMG-ALT FCQ
https://lammergierfonds.org/en/New window External IMG-ALT LGF
https://www.siece.org/New window External Subdomain IMG-ALT SIECE
http://euromothnights.uw.hu/New window External Subdomain IMG-ALT European Month nights
https://www.cobeuskadi.es/New window External Subdomain IMG-ALT COBE
http://nationalmothweek.org/New window External IMG-ALT National moth week
https://rpk-global.com/es/New window External IMG-ALT RPK
https://butroientransicion.org...New window External IMG-ALT Butroi
https://odornaturae1.wixsite.c...New window External Subdomain IMG-ALT Odor Naturae
/socioText duplicate Hazte socio
/calendarioText duplicate Calendario de actividades
/MDAMariposa del Año
/oasisText duplicate Oasis de mariposas
/healing-butterfliesText duplicate Healing Butterflies
/microrreservasText duplicate Microrreservas
/observadoresText duplicate Observadores de mariposas
/especies-amenazadasEspecies amenazadas
/seguimiento-diurnasProgramas de seguimiento
/especiesMariposas de España
/contacto.php[email protected]
https://app.bsky.cz/profile/as...New window External Subdomain Bluesky
https://www.instagram.com/asoc...New window External Subdomain Instagram
https://mastodon.social/@asocZ...New window External Mastodon
https://www.youtube.com/user/A...New window External Subdomain Youtube
https://www.threads.net/@asocz...New window External Subdomain Threads
https://hearthis.at/zerynthiaNew window External Hearthis.at
https://mailchimp.com/es/help/...New window External política de protección de datos
https://www.pexels.com/photo/n...External Subdomain Nature Forest Trees Fog de Jaymantri
https://www.vecteezy.com/free-...External Subdomain Spring Vectors de Vecteezy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.asociacion-zerynthia.org/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.80 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 (86 kB).

HTTP Response Header

NameValue
x-powered-byPHP/7.3.33
content-typetext/html; charset=UTF-8
content-encodingbr
varyAccept-Encoding
dateWed, 14 May 2025 18:05:06 GMT
serverLiteSpeed
alt-svch3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":443"; ma=2592000, h3-Q046=":443"; ma=2592000, h3-Q043=":443"; ma=2592000, quic=":443"; ma=2592000; v="43,46"
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 46 referring domains.
This page has 158 backlinks.
This page has backlinks from 45 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

www.asociacion-zerynthia.org
Asociación ZERYNTHIA
ZERYNTHIA es una Asociación de ámbito nacional (España) sin ánimo de lucro, que se encarga del estudio, divulgación y conservación de las mariposas y los lugares donde habitan.

Most important keywords

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

KeywordResultRecheck
Asociación ZERYNTHIA82%Check
ZERYNTHIA80%Check
Asociacion ZERYNTHIA59%Check
de mariposas57%Check
ZERYNTHIA realiza57%Check
en materia57%Check
mariposas55%Check
En caso55%Check
en cualquier55%Check
de lucro53%Check
Show more keywords and terms

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