data4group.com | Website SEO Review

Response time

0.56 s

File size

154.00 kB

Words

975

Media files

34

Number of links

90 internal / 16 external

Meta specifications 100% achieved

Title

(Critically important)

DATA4 | DataCenter en Europe | Data centers en Europe

There are word repetitions in the page title.

The length of the page title is perfect. (508 pixels out of 580 max pixel length)

Meta Title

Meta description

(Critically important)

DATA4 | DataCenter en Europe | Data center France Italie Espagne Pologne Allemagne Grèce | Plus grand campus de Data Centers d'Europe

The length of the meta description is perfect. (874 pixels out of 1000 max pixel length)

Meta Description

Crawlability

(Critically important)

There are no problems in accessing the website.

Search Engine Crawlers

Canonical URL

(Important)

https://www.data4group.com/

There is a valid canonical link specified.

Canonical Tag

Language

(Somewhat important)

Language detected in text: fr

Language defined in HTML: fr-fr

Server location: France

The following language is defined by HTML: fr-fr

Declaring language in HTML

Alternate/Hreflang Links

(Somewhat important)

The specified alternate links have no errors.

Hreflang

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.

Meta Tags

Domain

(Somewhat important)

The domain is no subdomain.

The domain length is good.

The domain does not contain non-latin characters.

Domain for SEO

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.

SEO-friendly URLs

Charset encoding

(Somewhat important)

The charset encoding (UTF-8) is set correctly.

Character Encoding

Doctype

(Nice to have)

The doctype HTML 5 is set correctly.

The doctype is placed at first in the HTML code.

HTML Doctype

Favicon

(Nice to have)

The favicon is linked correctly.

Favicon

Meta tags

Name	Value
viewport	width=device-width, initial-scale=1.0
theme-color	#fbfbfb
robots	index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
description	DATA4 \| DataCenter en Europe \| Data center France Italie Espagne Pologne Allemagne Grèce \| Plus grand campus de Data Centers d'Europe
google-site-verification	Qa2QwRT3rfLuT23MRgPZExgrMZTHmPQmopx1pXNQsfI
generator	WPML ver:4.7.4 stt:1,4,3,27,41,2;
msapplication-TileImage	https://www.data4group.com/wp-content/uploads/2021/10/cropped-favicon-1-270x270.png
article:modified_time	2025-06-17T14:47:39+00:00
lang	fr-fr
twitter:card	summary_large_image
og:locale	fr_FR
og:type	website
og:title	DATA4 \| DataCenter en Europe \| Data centers en Europe
og:description	DATA4 \| DataCenter en Europe \| Data center France Italie Espagne Pologne Allemagne Grèce \| Plus grand campus de Data Centers d'Europe
og:url	https://www.data4group.com/
og:site_name	DATA4 - Smart Data Centers at Scale
X-UA-Compatible	IE=edge
charset	UTF-8

Page quality 66% achieved

Content

(Critically important)

Words from the H1 heading are not used in the page content.

There are 4 text duplicates on this page:

Duplicate 1: Bâtir des campus de data centers hautement connectés, résilients et re...
Duplicate 2: DATA4 est un opérateur et investisseur européen majeur sur le marché d...

The average number of words per sentence of 27.54 words is high.

This page contains 975 words. That's ok.

20.6% 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.

12 paragraphs were found on this page.

No placeholders texts or images were found.

Content is King

Frames

(Critically important)

This page does not use a frameset.

Frames and framesets

Mobile optimization

(Somewhat important)

A viewport "width=device-width, initial-scale=1.0" is provided.

At least one Apple touch icon is specified.

Mobile Optimization

Bold and strong tags

(Somewhat important)

Some tags are too long. With 133 characters this one is longer than 70 characters:
"bâtir des campus de data centers hautement connectés, résilients et responsables pour soutenir la croi..."

Strong and Bold Tags

Image SEO

(Somewhat important)

6 images have no alt attribute. The content of alt attributes is used by search engines.

Image SEO

There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.

Social Sharing

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.

HTTPS

Media list

URL	Alt attribute	Title
...epress-multilingual-cms/res/flags/fr.svg	FR
...epress-multilingual-cms/res/flags/en.svg	EN
...epress-multilingual-cms/res/flags/it.svg	IT
...epress-multilingual-cms/res/flags/es.svg	ES
...epress-multilingual-cms/res/flags/pl.svg	PL
...epress-multilingual-cms/res/flags/de.svg	DE
...data4-group/assets/images/data4-logo.svg	DATA4 - Smart Data Centers at Scale \| Smart Data Centers at Scale
...data4-group/assets/images/data4-logo.svg	DATA4 - Smart Data Centers at Scale \| Smart Data Centers at Scale
...data4-group/assets/images/data4-logo.svg	DATA4 - Smart Data Centers at Scale \| Smart Data Centers at Scale
...epress-multilingual-cms/res/flags/fr.svg	FR
...epress-multilingual-cms/res/flags/en.svg	EN
...epress-multilingual-cms/res/flags/it.svg	IT
...epress-multilingual-cms/res/flags/es.svg	ES
...epress-multilingual-cms/res/flags/pl.svg	PL
...epress-multilingual-cms/res/flags/de.svg	DE
.../images/icons/data4-icons-intro-home.svg	Campus de data centers innovants
...loads/2021/10/ressource-data-centers.svg	Data center - Operational Datacenters
...nt/uploads/2021/10/ressource-surface.svg	Data center - M² de Surface IT
...content/uploads/2021/10/ressource-mw.svg	Data center - GW
...10/ressource-operateur-cloud-telecom.svg	Data center - Opérateurs Cloud & Télécom
...-group/assets/images/data4-logo-blog.svg	DATA4 - Blog
...ts/images/icons/button-arrow-primary.svg	No alt attribute provided
...ts/images/icons/button-arrow-primary.svg	No alt attribute provided
...ts/images/icons/button-arrow-primary.svg	No alt attribute provided
...cons/icon-bloc-ressources-title-home.png	No alt attribute provided
...cons/icon-bloc-ressources-title-home.png	No alt attribute provided
...ploads/2024/12/net-zero-data-centers.svg	Net Zero Innovations
.../12/european-data-center-association.png	EUDCA
...uropean-alliance-for-industrial-data.png	European Alliance for Industrial Data
...t/uploads//2021/10/data4-logo-footer.svg	DATA4 - Smart Data Centers at Scale
.../images/icons/icon-newsletter-widget.png	Newsletter
...s/icons/icon-contact-popin-close-btn.png	close
/wp-content/uploads/2021/10/data4-logo.svg	No alt attribute provided

Video URL	Width	Height
...smart-data-centers-video-home-header.mp4

Page structure 97% achieved

H1 heading

(Critically important)

Campus de data centers innovants

The H1 heading is perfect.

H1-H6 headings

Headings

(Important)

There are 26 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

H1-H6 headings

Heading structure

Heading level	Content
H1	Campus de data centers innovants
H2	La Mission de DATA4
H2	Campus de Data Centers performants & hyper-connectés
H2	DATA4 opère 34 Data Centers en France, en Italie, en Espagne, en Pologne, en Allemagne et en Grèce, et met à disposition de ses clients :
H2	Nos livres blancs
H2	Nos certifications
H2	DATA4 en images
H2	Nos partenaires & associations
H3	Paris
H3	Milan
H3	Madrid
H3	Varsovie
H3	Francfort
H3	Athènes
H3	Les ressources de DATA4
H3	Croissance massive et défis des data centers : l’alimentation énergétique du monde numérique en question
H3	Les opérateurs de data centers sont les architectes d’un numérique durable
H3	Et si les data centers produisaient une nouvelle énergie verte ?
H3	Rapport RSE 2024
H3	Greener Data – Volume Two
H3	Les enjeux clés pour un numérique responsable
H3	Les KPI environnementaux de la DSI, en partenariat avec AdVaes
H3	Marcoussis Campus PAR1
H3	Madrid - San Agustín del Guadalix Campus
H3	Warsaw Campus
H3	Madrid - Alcobendas Campus

Link structure 83% achieved

Internal links

(Important)

Some internal link anchor texts are too long.

Some anchor texts are used more than once.

The number of internal links is ok.

All internal links are not using dynamic parameters.

Internal Linking

External links

(Nice to have)

There are 16 external links on this page.

External Links

Found links on this page

Link	Attributes	Anchor text
https://www.data4group.com/blog/	Subdomain	Blog
/carrieres/	Subdomain	Carrières
https://cwp.data4group.com/	New window Nofollow External Subdomain	Portail Client
https://www.data4group.com/en/	Subdomain	IMG-ALT EN
https://www.data4group.com/it/	Subdomain	IMG-ALT IT
https://www.data4group.com/es/	Subdomain	IMG-ALT ES
https://www.data4group.com/pl/	Subdomain	IMG-ALT PL
https://www.data4group.com/de/	Subdomain	IMG-ALT DE
https://www.linkedin.com/compa...	New window Nofollow External Subdomain	No Text
https://www.youtube.com/channe...	New window Nofollow External Subdomain	No Text
https://www.data4group.com/	Subdomain	IMG-ALT DATA4 - Smart Data Centers at Scale \| Smart Data Centers at Scale
/datacenter-europe-campus-data...	Subdomain	Notre modèle de campus de data centers
/data-center-paris-france/	Subdomain	Paris – France
/data-center-milan-italie/	Subdomain	Milan – Italie
/data-center-madrid-espagne/	Subdomain	Madrid – Espagne
/data-centers-varsovie-pologne/	Subdomain	Varsovie – Pologne
/data-center-francfort-allemagne/	Subdomain	Francfort – Allemagne
/data-center-athenes-grece/	Subdomain	Athènes – Grèce
/certifications-data-centers/	Subdomain	Certifications et normes A-TITLE Les Certifications de DATA4 et de ses data centers
/solution-datacenter-d4-hosting/	Subdomain	Services
/solution-datacenter-d4-hosting/	Subdomain	Notre portefeuille de services
/datacenter-location-colocatio...	Subdomain	Colocation A-TITLE Colocation de data center & bâtiment dédié
/datacenter-prive-batiment-dedie/	Subdomain	Bâtiment dédié
/logistique-et-gestion-operati...	Subdomain	Logistique et gestion opérationnelle
/services-connectivite/	Subdomain	Services de Connectivité
/portail-client-dedie/	Subdomain	Portail client dédié
/notre-politique-de-developpem...	Subdomain	Data4 Good
/notre-politique-de-developpem...	Subdomain	Data4 Good \| Environnement
/notre-politique-de-developpem...	Subdomain	Data4 Good \| People
/notre-politique-de-developpem...	Subdomain	Data4 Good \| Gouvernance
/notre-politique-de-developpem...	Subdomain	Data4 Good \| Territoires
/ressources/	Subdomain	Ressources
/ressources/categories/livres-...	Subdomain	Livres blancs
/ressources/categories/infogra...	Subdomain	Infographies
https://www.data4group.com/blog/	Subdomain Text duplicate	Blog
/nos-videos/	Subdomain	Nos vidéos
/qui-sommes-nous-data4/	Subdomain	Qui sommes-nous ?
/management-data4/	Subdomain	Management
/carrieres/	Subdomain Text duplicate	Carrières
/categorie-presse/revue-de-pre...	Subdomain	Ils parlent de nous
/contacts-presse/	Subdomain	Presse
/contact/	Subdomain	Contact
https://www.data4group.com/blog/	Subdomain Text duplicate	Blog
/carrieres/	Subdomain Text duplicate	Carrières
https://cwp.data4group.com/	New window Nofollow External Subdomain Text duplicate	Portail Client
https://www.data4group.com/en/	Subdomain Text duplicate	IMG-ALT EN
https://www.data4group.com/it/	Subdomain Text duplicate	IMG-ALT IT
https://www.data4group.com/es/	Subdomain Text duplicate	IMG-ALT ES
https://www.data4group.com/pl/	Subdomain Text duplicate	IMG-ALT PL
https://www.data4group.com/de/	Subdomain Text duplicate	IMG-ALT DE
https://www.linkedin.com/compa...	New window Nofollow External Subdomain	No Text
https://www.youtube.com/channe...	New window Nofollow External Subdomain	No Text
/contact/	Subdomain	Contactez-nous A-TITLE Contact
/data-center-paris-france/	Subdomain	Paris A-TITLE Nos campus de Data Centers en France
/data-center-milan-italie/	Subdomain	Milan A-TITLE Nos campus de data centers en Italie
/data-center-madrid-espagne/	Subdomain	Madrid A-TITLE Notre campus de Data Centers en Espagne
/data-centers-varsovie-pologne/	Subdomain	Varsovie A-TITLE Notre campus de data centers en Pologne
/data-center-francfort-allemagne/	Subdomain	Francfort A-TITLE Notre campus de Data centers en Allemagne
/data-center-athenes-grece/	Subdomain	Athènes A-TITLE Notre campus de Data centers en Grèce
/data-center-paris-france/	Subdomain Text duplicate	Paris A-TITLE Nos campus de Data Centers en France
/data-center-milan-italie/	Subdomain Text duplicate	Milan A-TITLE Nos campus de data centers en Italie
/data-center-madrid-espagne/	Subdomain Text duplicate	Madrid A-TITLE Notre campus de Data Centers en Espagne
/data-centers-varsovie-pologne/	Subdomain Text duplicate	Varsovie A-TITLE Notre campus de data centers en Pologne
/data-center-francfort-allemagne/	Subdomain Text duplicate	Francfort A-TITLE Notre campus de Data centers en Allemagne
/data-center-athenes-grece/	Subdomain Text duplicate	Athènes A-TITLE Notre campus de Data centers en Grèce
/les-tendances-du-marche/crois...	Subdomain	Juin 27, 2025 Tendances du marché Croissance massive et défis des data centers : l’alimentation énergétique du monde numérique en question
/rse/les-operateurs-de-data-ce...	Subdomain	Juin 26, 2025 IA Les opérateurs de data centers sont les architectes d’un numérique durable
/actualites-data4/et-si-les-da...	Subdomain	Juin 3, 2025 Actualités Data4 Et si les data centers produisaient une nouvelle énergie verte ?
https://www.data4group.com/blog/	Subdomain	Tous nos articles
/ressources/rapport-rse-2024/	Subdomain	Rapport RSE 2024
/ressources/greener-data-volum...	Subdomain	Greener Data – Volume Two
/ressources/les-enjeux-cles-po...	Subdomain	Les enjeux clés pour un numérique responsable
/ressources/les-kpi-environnem...	Subdomain	Les KPI environnementaux de la DSI, en partenariat avec AdVaes
/ressources/categories/livres-...	Subdomain	Toutes nos ressources
https://www.youtube.com/watch?...	External Subdomain	Marcoussis Campus PAR1
https://www.youtube.com/watch?...	External Subdomain	Madrid - San Agustín del Guadalix Campus
https://www.youtube.com/watch?...	External Subdomain	Warsaw Campus
https://www.youtube.com/watch?...	External Subdomain	Madrid - Alcobendas Campus
https://www.netzerodatacenters...	New window External Subdomain	IMG-ALT Net Zero Innovations
https://www.eudca.org/	New window External Subdomain	IMG-ALT EUDCA
https://www.europeancloudallia...	New window External Subdomain	IMG-ALT European Alliance for Industrial Data
https://www.data4group.com/	Subdomain	DATA4 Group
/data-center-paris-france/	Subdomain	Campus Paris-Saclay Route de Nozay 91460 Marcoussis France
/data-center-milan-italie/	Subdomain	Campus Milan Via Monzoro 101-105 20007 Cornaredo (MI) Italie
/data-center-madrid-espagne/	Subdomain	Campus Madrid Avenida de la Industria, 15 28108 Alcobendas Espagne
/data-centers-varsovie-pologne/	Subdomain	Campus Varsovie Przyparkowa 21 05-850 Jawczyce Pologne
/data-center-francfort-allemagne/	Subdomain	Campus Francfort Depotstraße 63457 Hanau Allemagne
/data-center-athenes-grece/	Subdomain	Campus Athènes Agiou Louka 33 190 02 Paiania Grèce
https://www.data4group.com/	Subdomain	IMG-ALT DATA4 - Smart Data Centers at Scale
/datacenter-europe-campus-data...	Subdomain	Data Centers
/solution-datacenter-d4-hosting/	Subdomain Text duplicate	Notre portefeuille de services
/hybrid-it-2/	Subdomain	Hybrid Cloud
/qui-sommes-nous-data4/	Subdomain	À propos de DATA4
/carrieres/	Subdomain Text duplicate	Carrières
/contact/	Subdomain Text duplicate	Contact
https://cwp.data4group.com/	External Subdomain	Portail client
https://www.linkedin.com/compa...	New window Nofollow External Subdomain	No Text
https://www.youtube.com/channe...	New window Nofollow External Subdomain	No Text
/conditions-generales-dutilisa...	Subdomain	Conditions Générales d’utilisation du site
/mentions-legales/	Subdomain	Mentions Légales
/politique-de-protection-des-d...	Subdomain	Politique de protection des données personnelles du site web
/politique-utilisation-des-coo...	Subdomain	Politique d’utilisation des cookies
/code-of-ethics-and-business-c...	Subdomain	Code of Ethics and Business Conduct
/data4-whistleblowing-policy/	Subdomain	DATA4 Whistleblowing Policy
/contact/	Subdomain Text duplicate	Contact
/politique-donnees-personnelles/	New window Subdomain	Politique de données personnelles ici

Server configuration 84% achieved

HTTP redirects

(Critically important)

This page redirects to "https://www.data4group.com/"

WWW Redirect

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.

HTTP headers

Performance

(Somewhat important)

The page response time of 0.56 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 (154 kB).

Page Speed

HTTP Response Header

Name	Value
date	Tue, 01 Jul 2025 10:12:16 GMT
server	Apache
x-powered-by	PHP/7.4.25
link	<https://www.data4group.com/wp-json/>; rel="https://api.w.org/", <https://www.data4group.com/wp-json/wp/v2/pages/5>; rel="alternate"; title="JSON"; type="application/json", <https://www.data4group.com/>; rel=shortlink
content-encoding	gzip
content-length	30244
content-type	text/html; charset=UTF-8
via	1.1 varnish (Varnish/6.3), 1.1 varnish (Varnish/6.3)
vary	Accept-Encoding
x-cache-hits	1
x-cache	HIT
accept-ranges	bytes
age	79
statuscode	200
http_version	HTTP/2

External factors 100% achieved

Backlinks

(Critically important)

This website has excellent links from other websites.

This page has backlinks from 135 referring domains.

This page has 464 backlinks.

This page has backlinks from 114 different ip addresses.

Backlinks

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow: /?s=
Disallow: /page/*/?s=
Disallow: /search/

Sitemap: https://www.data4group.com/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK

Similar sites

Search preview

www.data4group.com

DATA4 | DataCenter en Europe | Data centers en Europe

DATA4 | DataCenter en Europe | Data center France Italie Espagne Pologne Allemagne Grèce | Plus grand campus de Data Centers d'Europe

Most important keywords

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

Keyword	Result	Recheck
data	92%	Check
Data Centers	88%	Check
centers	85%	Check
Data4	81%	Check
de data centers	80%	Check
Data centers en Europe	80%	Check
campus de data centers	79%	Check
de DATA4	78%	Check
en Europe	76%	Check
Data Centers en France	74%	Check
de campus	73%	Check
campus	72%	Check
DataCenter en Europe	70%	Check
Europe	66%	Check
Mission de DATA4	65%	Check
en Allemagne et	63%	Check
Ce site	63%	Check
Data Management	62%	Check
Datacenter	59%	Check
innovants	52%	Check
France	50%	Check
Allemagne	50%	Check
Italie	50%	Check
Espagne	50%	Check
Pologne	50%	Check

Show more keywords and terms

Data4group.com - SEO Checker

Task list of SEO Improvements 3 Tasks

Meta specifications 100% achieved

(Critically important)

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(Important)

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(Somewhat important)

(Nice to have)

(Nice to have)

Meta tags

Automatically check data4group.com including all subpages at once!

Page quality 66% achieved

(Critically important)

(Critically important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Nice to have)

(Nice to have)

(Somewhat important)

Media list

Page structure 97% achieved

(Critically important)

(Important)

Heading structure

Link structure 83% achieved

(Important)

(Nice to have)

Found links on this page

Server configuration 84% achieved

(Critically important)

(Important)

(Somewhat important)

HTTP Response Header

External factors 100% achieved

(Critically important)

Links from Wikipedia

Robots.txt

Similar sites

Search preview

Most important keywords

Automatically check data4group.com including all subpages at once!

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