LAVOISIER.FR La Librairie Lavoisier, c’est plus de 75 ans au service de la Science, de l’Université et de l’Industrie

lavoisier.fr Website Information

Daily Unique Visits: 10,619

Daily Page Views: 53,095

Income Per Day: $133

Estimated Value: $79,800

This website is located in France and is using following IP address 85.31.210.45. See the complete list of popular websites hosted in France.

lavoisier.fr is registered under .FR top-level domain. Please check other sites in .FR zone.

Website lavoisier.fr is using the following name servers:

  • ns-153-a.gandi.net
  • ns-247-c.gandi.net
  • ns-78-b.gandi.net

and is probably hosted by Jaguar Network SAS. See the full list of other websites hosted by Jaguar Network SAS.

The highest website lavoisier.fr position in Alexa rank database was 16954 and the lowest rank position was 996926. Current position of lavoisier.fr in Alexa rank database is 128307.

Desktop speed score of lavoisier.fr (77/100) is better than the results of 63.93% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of lavoisier.fr (72/100) is better than the results of 22.14% of other sites and means that the page is not mobile-friendly.

Mobile speed score of lavoisier.fr (66/100) is better than the results of 68.49% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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lavoisier.fr Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


lavoisier.fr whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


%%
%% This is the AFNIC Whois server.
%%
%% complete date format: YYYY-MM-DDThh:mm:ssZ
%%
%% Rights restricted by copyright.
%% See https://www.afnic.fr/en/domain-names-and-support/everything-there-is-to-know-about-domain-names/find-a-domain-name-or-a-holder-using-whois/
%%
%%

domain: lavoisier.fr
status: ACTIVE
eppstatus: clientTransferProhibited
hold: NO
holder-c: CTC2420474-FRNIC
admin-c: L334-FRNIC
tech-c: G768-FRNIC
registrar: GANDI
Expiry Date: 2025-06-18T10:35:54Z
created: 1995-04-20T22:00:00Z
last-update: 2023-11-15T08:37:47.158726Z
source: FRNIC

nserver: ns-153-a.gandi.net
nserver: ns-247-c.gandi.net
nserver: ns-78-b.gandi.net
source: FRNIC

registrar: GANDI
address: 63-65 boulevard Massena
address: 75013 PARIS
country: FR
phone: +33.170377661
fax-no: +33.143731851
e-mail: support@support.gandi.net
website: https://www.gandi.net/fr/tlds/fr/
anonymous: No
registered: 2004-03-08T00:00:00Z
source: FRNIC

nic-hdl: CTC2420474-FRNIC
type: ORGANIZATION
contact: John Libbey Eurotext
address: John Libbey Eurotext
address: 30A rue Berthollet
address: 94110 Arcueil
country: FR
phone: +33.146730660
e-mail: dd8fec38006d7612db9f108e4dd5fac9-44722670@contact.gandi.net
registrar: GANDI
anonymous: NO
obsoleted: NO
eppstatus: associated
eppstatus: active
eligstatus: not identified
reachstatus: not identified
source: FRNIC

nic-hdl: G768-FRNIC
type: ORGANIZATION
contact: GANDI
address: GANDI
address: 63-65 Boulevard MASSENA
address: 75013 Paris
country: FR
phone: +33.143737851
fax-no: +33.143731851
e-mail: noc@gandi.net
registrar: GANDI
changed: 2024-10-18T14:16:30.365809Z
anonymous: NO
obsoleted: NO
eppstatus: associated
eppstatus: active
eligstatus: not identified
reachstatus: not identified
source: FRNIC

nic-hdl: L334-FRNIC
type: ORGANIZATION
contact: LAVOISIER
address: 14, rue de Provigny
address: 94230 Cachan
country: FR
phone: +33.147406700
fax-no: +33.147406702
e-mail: patrick.fenouil@lavoisier.fr
registrar: GANDI
changed: 2021-11-30T14:58:35Z
anonymous: NO
obsoleted: NO
eppstatus: associated
eppstatus: active
eligstatus: not identified
reachstatus: not identified
source: FRNIC

>>> Last update of WHOIS database: 2024-10-18T20:01:48.167808Z

lavoisier.fr server information

Servers Location

lavoisier.fr desktop page speed rank

Last tested: 2018-12-16


Desktop Speed Medium
77/100

lavoisier.fr Desktop Speed Test Quick Summary


priority - 20Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 193.5KiB (74% reduction).

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

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https://fonts.googleapis.com/css?family=Anaheim
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priority - 0Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://ssl.google-analytics.com/ga.js (2 hours)

priority - 0Minify JavaScript

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priority - 0Minify CSS

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lavoisier.fr Desktop Resource Breakdown

Total Resources30
Number of Hosts8
Static Resources25
JavaScript Resources4
CSS Resources6

lavoisier.fr mobile page speed rank

Last tested: 2018-12-16


Mobile Speed Medium
66/100

lavoisier.fr Mobile Speed Test Quick Summary


priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://js.lavoisier.net/opensearchserver.js
https://js.lavoisier.net/commun.js
https://js.lavoisier.net/wow.js

Optimize CSS Delivery of the following:

https://css.lavoisier.net/accueil2.css
https://css.lavoisier.net/oss-style.css
https://css.lavoisier.net/animate.css
https://fonts.googleapis.com/css?family=Anaheim
https://fonts.googleapis.com/css?family=Dancing+Script
https://fonts.googleapis.com/css?family=Oxygen+Mono

priority - 20Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 193.5KiB (74% reduction).

Compressing https://images.lavoisier.net/fonds/noel2014a.jpg could save 190.9KiB (75% reduction).
Compressing https://images.lavoisier.net/icones/go-librairie.jpg could save 716B (56% reduction).
Compressing https://images.lavoisier.net/icones/go-datec.jpg could save 674B (55% reduction).
Compressing https://images.lavoisier.net/icones/go-diffusion.jpg could save 635B (54% reduction).
Compressing https://images.lavoisier.net/icones/go-editions.jpg could save 620B (53% reduction).

priority - 1Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://ssl.google-analytics.com/ga.js (2 hours)

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 2.4KiB (33% reduction).

Minifying https://js.lavoisier.net/commun.js could save 1.8KiB (60% reduction) after compression.
Minifying https://js.lavoisier.net/wow.js could save 430B (13% reduction) after compression.
Minifying https://js.lavoisier.net/opensearchserver.js could save 210B (19% reduction) after compression.

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 1.2KiB (14% reduction).

Minifying https://css.lavoisier.net/oss-style.css could save 765B (18% reduction) after compression.
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lavoisier.fr Mobile Resource Breakdown

Total Resources30
Number of Hosts8
Static Resources25
JavaScript Resources4
CSS Resources6

lavoisier.fr mobile page usability

Last tested: 2018-12-16


Mobile Usability Medium
72/100

lavoisier.fr Mobile Usability Test Quick Summary


priority - 17Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

vous souhaite and 1 others render only 7 pixels tall (18 CSS pixels).

, renders only 4 pixels tall (11 CSS pixels).

ressources num…professionnels renders only 5 pixels tall (13 CSS pixels).

NOS PRODUITS ON-LINE and 1 others render only 5 pixels tall (14 CSS pixels).

Réflexion sur…édopsychiatrie and 5 others render only 5 pixels tall (12 CSS pixels).

priority - 11Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/livre/nouveautes.asp"></a> and 2 others are close to other tap targets.

The tap target <input type="submit"> is close to 1 other tap targets.

The tap target <a href="https://editions.lavoisier.fr/" class="titre">Éditions</a> and 2 others are close to other tap targets.

The tap target <input type="submit"> is close to 1 other tap targets.

The tap target <input type="submit"> is close to 1 other tap targets.

The tap target <input type="submit"> is close to 1 other tap targets.

The tap target <a href="http://e.lavoisier.fr/">eBooks</a> and 5 others are close to other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

lavoisier.fr HTML validation

Errors

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

Line: 2 Column: 1 - 110
"... <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <!--[..."

Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.

Line: 14 Column: 1 - 52
"...t="fr" /> <META http-equiv="Cache-Control" content="no-cache"> <META..."

Bad value “Pragma” for attribute “http-equiv” on element “meta”.

Line: 15 Column: 1 - 45
"...o-cache"> <META http-equiv="Pragma" content="no-cache"> <META..."

Bad value “Expires” for attribute “http-equiv” on element “meta”.

Line: 16 Column: 1 - 39
"...o-cache"> <META http-equiv="Expires" content="0"> <lin..."

Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.

Line: 32 Column: - 13
"...> <script href"https://cdnjs...." Line: 32 Column: - 79
"...1/jquery.min.js"></script> <sc..."

A slash was not immediately followed by “>”.

Line: 32 Column: - 21
"...pt href"https://cdnjs.cloudfla..." Line: 32 Column: - 22
"...t href"https://cdnjs.cloudflar..." Line: 32 Column: - 43
"...cloudflare.com/ajax/libs/jquer..." Line: 32 Column: - 48
"...flare.com/ajax/libs/jquery/3.2..." Line: 32 Column: - 53
"....com/ajax/libs/jquery/3.2.1/jq..." Line: 32 Column: - 60
"...ax/libs/jquery/3.2.1/jquery.mi..." Line: 32 Column: - 66
"...s/jquery/3.2.1/jquery.min.js">..."

Attribute “href"https:” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “cdnjs.cloudflare.com” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “ajax” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “libs” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “jquery” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “3.2.1” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “jquery.min.js"” not allowed on element “script” at this point.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Warnings

Attribute “href"https:” is not serializable as XML 1.0.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “3.2.1” is not serializable as XML 1.0.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

Attribute “jquery.min.js"” is not serializable as XML 1.0.

Line: 32 Column: 1 - 80
"...esheet"> <script href"https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></scri..."

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lavoisier.fr Ping

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lavoisier.fr TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.