Centenaire.org L'expert B2B | Centenaire Magazine

Centenaire.org Overview

Website Overview:

Centenaire.org is a structural website dedicated to the centennial commemoration of World War I. It serves as the official portal for Mission Centenaire 14-18 and provides a variety of resources for local, national, and international commemorations as well as cultural events related to the centenary of the Great War.

The website aims to offer unique archives, a scientific space, and educational resources related to the First World War. Through these resources, users can delve into the history, impact, and legacy of the war. This implies that the website is likely to contain historical materials, multimedia content, and educational resources for various target audiences such as researchers, historians, educators, and the general public.

With an average of 385 unique users per day and 770 pageviews, Centenaire.org attracts a moderate amount of traffic. The site's estimated value of 5840 US dollars suggests its significance and relevance in the centennial commemoration of World War I.

Centenaire.org is hosted by o2switch SARL hosting, a web hosting provider. The website has a top-level domain of .ORG, which is commonly associated with non-profit organizations and public service initiatives. This indicates that Centenaire.org likely operates as a non-profit entity or a government-affiliated organization involved in the commemoration of the First World War.

The SSL certificate issued by Let's Encrypt ensures secure communications between the website and its users, protecting sensitive information such as personal data and financial transactions. This establishes trust and security for visitors.

As for the family-friendliness of the site, this information is not explicitly provided in the overview. However, considering its educational and commemorative nature, it can be assumed that the content is appropriate for users of all ages. Nonetheless, it may be advisable for parents or guardians to review the specific content before allowing younger users to explore the website independently.

The PageSpeed Insights score of 43 indicates that the website may have some performance issues, affecting its loading speed. This score suggests that there might be room for improvement in terms of optimizing the website's speed and overall performance.

Lastly, the presence of 1188 external backlinks and 919 referring domains indicates that Centenaire.org receives a significant amount of traffic and recognition from other websites, organizations, and individuals. This reflects the website's authority, relevance, and influence in the field of World War I centennial commemoration.

Centenaire.org Rank Summary

Global Rank

879,661

Average Load Time

0.71sec

Links In Count

600

Website Value

$5,846

Audience Geography. Where are centenaire.org visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on centenaire.org?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is centenaire.org?

Period	Global Rank	Global Rank Delta
past 3 months	879661	416359
past month	930725	-5166147

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1062618	432877	2	-49.1%	2	20%
30	1320218	-4808887	2	5000%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	850804	429189	5	-56.327%
30	749529	-5214834	6	5000%

Centenaire.org Website Safety

Overview

Last Updated: 05/18/2025

Overall result - centenaire.org is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 04/02/2025

centenaire.org is safe.

Norton ConnectSafe evaluates centenaire.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 03/06/2019

centenaire.org is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

centenaire.org is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 03/02/2021

centenaire.org is safe.

McAfee assesses centenaire.org for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze centenaire.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/11/2019

centenaire.org child safety is very good.

The WOT calculates reputation of the centenaire.org. This reputation system receives ratings from users and information from third-party sources, assesses the centenaire.org for safety features and confirms, whether centenaire.org is suitable for children.

SSL Information

SSL Checker Tool

Domain	centenaire.org
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	06/23/2023
Expiration	09/21/2023
Signed	Certificate is not self signed
Additional Domains	centenaire.org www.centenaire.org

Centenaire.org Rank History

Alexa Rank shows how popular centenaire.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If centenaire.org has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to centenaire.org and pageviews on centenaire.org over the past 3 months.

Centenaire.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 50474

ASN Title: o2switch SARL

Last Update: 04/22/2025

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to 'AS47104 - AS52223'

as-block: AS47104 - AS52223
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2015-09-30T14:19:22Z
last-modified: 2015-09-30T14:19:22Z
source: RIPE

% Information related to 'AS50474'

% Abuse contact for 'AS50474' is 'abuse@o2switch.fr'

aut-num: AS50474
as-name: O2SWITCH
org: ORG-oS50-RIPE
import: from AS44902 accept any
import: from AS50618 accept any
import: from AS8218 accept any
export: to AS44902 announce AS50474
export: to AS50618 announce AS50474
export: to AS8218 announce AS50474
admin-c: YA460-RIPE
tech-c: YA460-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MNT-O2SWITCH
mnt-routes: MNT-O2SWITCH
created: 2010-01-22T11:22:57Z
last-modified: 2017-11-15T12:16:25Z
source: RIPE

organisation: ORG-oS50-RIPE
org-name: o2switch SARL
org-type: LIR
address: 222-224 Boulevard Gustave Flaubert
address: 63000
address: Clermont-Ferrand
address: FRANCE
phone: +33444446040
fax-no: +33444446041
admin-c: YA460-RIPE
abuse-c: OAT9-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: MNT-O2SWITCH
mnt-by: RIPE-NCC-HM-MNT
mnt-by: MNT-O2SWITCH
created: 2009-12-31T12:32:05Z
last-modified: 2016-05-30T10:14:29Z
source: RIPE # Filtered

person: YEPES Alexandre
address: O2SWITCH
address: 222-224 Boulevard Gustave Flaubert
address: 63000 Clermont-Ferrand
address: FRANCE
phone: +33.444446040
nic-hdl: YA460-RIPE
created: 2009-12-31T16:42:31Z
last-modified: 2017-01-18T14:31:27Z
source: RIPE # Filtered
mnt-by: MNT-O2SWITCH

% This query was served by the RIPE Database Query Service version 1.91.2 (ANGUS)

Centenaire.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: centenaire.org
Registry Domain ID: 469aecd196264024ba1ba6ba77a00a40-LROR
Registrar WHOIS Server: http://whois.namebright.com
Registrar URL: http://www.NameBright.com
Updated Date: 2024-04-13T22:15:30Z
Creation Date: 2022-04-25T14:30:28Z
Registry Expiry Date: 2025-04-25T14:30:28Z
Registrar: DropCatch.com 1477 LLC
Registrar IANA ID: 3686
Registrar Abuse Contact Email: abuse@NameBright.com
Registrar Abuse Contact Phone: +1.7204960020
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: NameBrightPrivacy.com
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: CO
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.o2switch.net
Name Server: ns2.o2switch.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-22T16:06:07Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
centenaire.org	164.132.235.17	10800

Host	MX Record	Priority	TTL
centenaire.org	mx1.viaduc.fr	10	10800
centenaire.org	mx2.viaduc.fr	50	10800

Host	NS Record	TTL
centenaire.org	ns1.nom-domaine.fr	10800
centenaire.org	ns2.nom-domaine.fr	10800

Host	TXT Record	TTL
centenaire.org	v=spf1 a mx include:cmail1.com ~all	10800

ns1.nom-domaine.fr
TTL: 10800
Email address: info.viaduc.fr
Serial: 2019080901
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 10800

Centenaire.org HTML Check

HTML Validation Tool

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Bad value “all and (min-width: 959px) and (max-width: 1199px) and (min-device-width: 1025px)” for attribute “media” on element “style”: Deprecated media feature “min-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.

Bad value “all and (min-width: 720px) and (max-width: 959px), (max-device-width: 1024px) and (min-width: 720px) and (orientation:landscape)” for attribute “media” on element “style”: Expected a CSS media feature but saw “max-device-width” instead.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

Attribute “about” not allowed on element “article” at this point.

Attribute “content” not allowed on element “span” at this point.

Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.

Bad value “100%” for attribute “height” on element “iframe”: Expected a digit but saw “%” instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Bad value “#overlay” for attribute “rel” on element “a”: The string “#overlay” is not a registered keyword.

Bad value for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Bad value “http://www.addtoany.com/add_to/viadeo?linkurl=http://centenaire.org/fr/videos/lannee-1917-de-la-grande-guerre&linkname=L'année 1917 de la Grande Guerre” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Start tag “a” seen but an element of the same type was already open.

Stray end tag “a”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.

Attribute “height” not allowed on element “a” at this point.

Bad value “noindex, nofollow” for attribute “rel” on element “a”: The string “noindex,” is not a registered keyword.

Duplicate attribute “class”.

Duplicate attribute “id”.

Attribute “about” not allowed on element “div” at this point.

Warnings

Attribute with the local name “xmlns:content” is not serializable as XML 1.0.

Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.

Attribute with the local name “xmlns:foaf” is not serializable as XML 1.0.

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

Attribute with the local name “xmlns:rdfs” is not serializable as XML 1.0.

Attribute with the local name “xmlns:sioc” is not serializable as XML 1.0.

Attribute with the local name “xmlns:sioct” is not serializable as XML 1.0.

Attribute with the local name “xmlns:skos” is not serializable as XML 1.0.

Attribute with the local name “xmlns:xsd” is not serializable as XML 1.0.

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Centenaire.org Desktop Performance

Last tested: 08/09/2019

Desktop Speed

23%

Optimize images

Leverage browser caching

Enable compression

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Reduce server response time

Minify JavaScript

Minify CSS

Desktop Resource Breakdown

Total Resources	245
Number of Hosts	19
Static Resources	231
JavaScript Resources	51
CSS Resources	36

Centenaire.org Mobile Insights

Last tested: 08/26/2015

Mobile Usability

98%

Size tap targets appropriately

Mobile Speed

43%

Optimize images

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Minify JavaScript

Minify HTML

Mobile Resource Breakdown

Total Resources	195
Number of Hosts	19
Static Resources	113
JavaScript Resources	41
CSS Resources	15

Centenaire.org Common Typos

www.centenaire.com
www.centenaire.net
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www.centenairse.org
www.centenaird.org
www.centenaired.org
www.centenairr.org
www.centenairer.org
www.centenairre.org

Centenaire.org L'expert B2B | Centenaire Magazine

Centenaire.org Overview

Centenaire.org Rank Summary

Centenaire.org Website Safety

Centenaire.org Rank History

Centenaire.org Hosting Information

Centenaire.org Domain Registration and Settings

Centenaire.org HTML Check

Centenaire.org Desktop Performance

Centenaire.org Mobile Insights

Centenaire.org Similar Audits

Centenaire.org Common Typos