Scielo.org.mx - SEO Checker

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Overview of the SEO Check
Meta information
68% 
Page quality
74% 
Page structure
58% 
Link structure
55% 
Server
40% 
External factors
51% 
SEO Score
Response time
1.95 s
File size
14.30 kB
Words
805
Media files
4
Number of links
16 internal / 31 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
SciELO - Scientific Electronic Library Online
The length of the page title is perfect. (392 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
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
Server location: Mexico
The language is not specified in the HTML markup.
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 character encoding is not specified in the HTTP header.
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
No doctype markup was found.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

NameValue
Content-Typetext/html; charset=UTF-8
Pragmano-cache
ExpiresMon, 06 Jan 1990 00:00:01 GMT

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Page quality

Content
(Critically important)
The average number of words per sentence of 25.93 words is high.
This page contains 805 words. That's ok.
23.9% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
13 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.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page does not require any JavaScript files.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 16 tags for this page.
Image SEO
(Somewhat important)
2 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
https://scielo.org.mx/img/es/scielobre.gifScientific Electronic Library Online
https://scielo.org.mx/img/assinat.gifNo alt attribute provided
licensebuttons.net/l/by/4.0/80x15.pngCreative Commons License
https://scielo.org.mx/img/e-mailt.gifNo alt attribute provided

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

Heading structure

No headings were found.
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
There are too many external links (31) on this page.

Found links on this page

LinkAttributesAnchor text
http://www.scielo.org/php/inde...External Subdomain IMG-ALT Scientific Electronic Library Online
http://www.scielo.org/php/inde...External Subdomain SciELO.org
/avaliacao/avaliacao_es.htmSubdomain evaluación de revistas
/documentosSubdomain documentos SciELO
/scielo.php?script=sci_home&ln...Subdomain português
/scielo.php?script=sci_home&ln...Subdomain english
https://scielo.org.mx/scielo.phpAnchor Ayuda
https://scielo.org.mx/scielo.phpAnchor Acerca del proyecto SciELO
/equipe/equipe_e.htmSubdomain equipo SciELO
/scielo.php?script=sci_alphabe...Subdomain lista alfabética
/scielo.php?script=sci_subject...Subdomain lista por materia
/cgi-bin/wxis.exe/iah/?IsisScr...Subdomain búsqueda de títulos
/cgi-bin/wxis.exe/iah/?IsisScr...Subdomain índice de autores
/cgi-bin/wxis.exe/iah/?IsisScr...Subdomain índice de materias
/cgi-bin/wxis.exe/iah/?IsisScr...Subdomain búsqueda de artículos
http://analytics.scielo.org/w/...New window External Subdomain uso del sitio
http://analytics.scielo.org/w/...New window External Subdomain Estadísticas de publicación
http://statbiblio.scielo.org/s...External Subdomain citas de revistas
https://dgb.unam.mx/New window External Subdomain DGBSDI
https://scielo.org/es/sobre-el...New window External red regional SciELO
/avaliacao/avaliacao_es.htmNew window proceso de postulación
https://scielo.readthedocs.io/...New window External Subdomain SciELO Publishing Schema
/documentos/?pag=manualesNew window Subdomain disponibles
/documentos/?pag=certificacionNew window Subdomain sección
http://www.fapesp.br/New window External Subdomain FAPESP
http://www.bireme.br/New window External Subdomain BIREME
http://www.conacyt.mx/New window External Subdomain CONACYT
http://www.revistascytconacyt.mx/New window External Subdomain Sistema de Clasificación de Revistas Mexicanas de Ciencia y Tecnología
https://analytics.scielo.org/New window External Subdomain SciELO Analytics
https://analytics.scielo.org/?...New window External Subdomain SciELO-México
https://analytics.scielo.org/w...New window External Subdomain descarga de archivos
https://apps-webofknowledge-co...New window External Subdomain SciELO Citation Index
https://www.scimagojr.com/jour...New window External Subdomain en este sitio
https://bit.ly/3mIPm05New window External SciELO-México/ScienceOpen
https://explore.openaire.eu/se...New window External Subdomain OpenAire
https://www.base-search.net/Se...New window External Subdomain BASE
https://www.fao.org/agris/New window External Subdomain AGRIS
https://clase.dgb.unam.mx/New window External Subdomain CLASE
https://periodica.dgb.unam.mx/New window External Subdomain PERIÓDICA
https://biblat.unam.mx/New window External Subdomain BIBLAT
https://dialnet.unirioja.es/New window External Subdomain DIALNET
https://hapi.ucla.edu/New window External Subdomain HAPI
https://preprints.scielo.org/i...New window External Subdomain repositorio de preprints
https://data.scielo.org/New window External Subdomain repositorio de datos
https://search.scielo.org/?q&l...New window External Subdomain búsquedas simultáneas en todas las colecciones SciELO
http://creativecommons.org/lic...External IMG-ALT Creative Commons License
http://creativecommons.org/lic...External Licencia Creative Commons

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://scielo.org.mx/scielo.php"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The used PHP version is outdated and may be a security risk.
The web server version is sent within the HTTP header.
The X-powered header is sent within the response header. (unnecessary)
Performance
(Somewhat important)
The page response time is very slow (1.95 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page only loads 1 CSS files. That's ok.
This page does not require any JavaScript files.
The file size of the HTML document is fine (14 kB).

HTTP Response Header

NameValue
dateThu, 19 Jun 2025 19:30:46 GMT
serverApache/2.2.3 (CentOS)
x-powered-byPHP/5.2.17
expiresThu, 19 Nov 1981 08:52:00 GMT
cache-controlno-store, no-cache, must-revalidate, post-check=0, pre-check=0
pragmano-cache
content-typetext/html
set-cookie44 Characters
transfer-encodingchunked
statuscode200
http_versionHTTP/1.1

External factors

This page has only a few links from other websites.
This page only has backlinks from 2 referring domains.
This page only has 2 backlinks.
This page only has few backlinks from 2 different ip addresses.
This page is referenced by wikipedia.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

scielo.org.mx › scielo.php
SciELO - Scientific Electronic Library Online

Most important keywords

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

KeywordResultRecheck
SciELO59%Check
Scientific Electronic Library48%Check
Electronic Library Online48%Check
Scientific Electronic Library Online48%Check
colecciones SciELO47%Check
red SciELO47%Check
proyecto SciELO47%Check
regional SciELO47%Check
SciELO Publishing Schema42%Check
org40%Check
Show more keywords and terms

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