lsv.fr Website Information

Daily Unique Visits: 1,414

Daily Page Views: 2,828

Income Per Day: $9

Estimated Value: $2,160

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

No name server records were found.

and is probably hosted by Renater. See the full list of other websites hosted by Renater.

The highest website lsv.fr position in Alexa rank database was 36087 and the lowest rank position was 999232. Current position of lsv.fr in Alexa rank database is 507175.

Desktop speed score of lsv.fr (81/100) is better than the results of 71.91% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of lsv.fr (65/100) is better than the results of 13.11% of other sites and means that the page is not mobile-friendly.

Mobile speed score of lsv.fr (64/100) is better than the results of 64.03% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

lsv.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.

lsv.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: lsv.fr
status: ACTIVE
eppstatus: active
hold: NO
holder-c: LSEV109-FRNIC
admin-c: LSEV110-FRNIC
tech-c: OVH5-FRNIC
registrar: OVH
Expiry Date: 2024-01-15T15:55:54Z
created: 1997-10-20T22:00:00Z
last-update: 2023-02-28T23:10:14.376175Z
source: FRNIC

nserver: ns.lsv.fr
source: FRNIC

registrar: OVH
address: 2 Rue Kellermann
address: 59100 ROUBAIX
country: FR
phone: +33.899701761
fax-no: +33.320200958
e-mail: support@ovh.net
website: http://www.ovh.com
anonymous: No
registered: 1999-10-18T00:00:00Z
source: FRNIC

nic-hdl: LSEV109-FRNIC
type: ORGANIZATION
contact: Laboratoire Spécification et Vérification
address: Laboratoire Spécification et Vérification
address: 61, avenue du Président Wilson
address: 94235 CACHAN
country: FR
phone: +33.147407575
e-mail: k7fv72sjdd9eutjt8bk1@a.o-w-o.info
registrar: OVH
anonymous: NO
obsoleted: NO
eppstatus: associated
eppstatus: active
eligstatus: not identified
reachstatus: not identified
source: FRNIC

nic-hdl: LSEV110-FRNIC
type: ORGANIZATION
contact: Laboratoire Specification et Verification
address: Laboratoire Specification et Verification
address: 61, avenue du President Wilson
address: 94235 CACHAN
country: FR
phone: +33.147407575
e-mail: faqxmvbph5avk0359dyf@p.o-w-o.info
registrar: OVH
anonymous: NO
obsoleted: NO
eppstatus: associated
eppstatus: active
eligstatus: not identified
reachstatus: not identified
source: FRNIC

nic-hdl: OVH5-FRNIC
type: ORGANIZATION
contact: OVH NET
address: OVH
address: 140, quai du Sartel
address: 59100 Roubaix
country: FR
phone: +33.899701761
e-mail: tech@ovh.net
registrar: OVH
changed: 2023-10-06T18:57:08.39948Z
anonymous: NO
obsoleted: NO
eppstatus: associated
eppstatus: active
eligstatus: not identified
reachstatus: not identified
source: FRNIC

>>> Last update of WHOIS database: 2023-10-06T19:29:49.714023Z

lsv.fr server information

Servers Location

lsv.fr desktop page speed rank

Last tested: 2018-10-01

Desktop Speed Medium

81/100

lsv.fr Desktop Speed Test Quick Summary

priority - 10Leverage 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:

http://www.lsv.fr/CSS/base.css (expiration not specified)
http://www.lsv.fr/CSS/deenhance.css (expiration not specified)
http://www.lsv.fr/CSS/enhance.css (expiration not specified)
http://www.lsv.fr/CSS/handheld.css (expiration not specified)
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priority - 7Optimize images

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priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 0Minify CSS

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lsv.fr Desktop Resource Breakdown

Total Resources	25
Number of Hosts	6
Static Resources	22
CSS Resources	7

lsv.fr mobile page speed rank

Last tested: 2018-07-03

Mobile Speed Bad

64/100

lsv.fr Mobile Speed Test Quick Summary

priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

http://www.lsv.fr/CSS/lsv.css
http://www.lsv.fr/CSS/base.css
http://www.lsv.fr/CSS/enhance.css
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priority - 20Optimize images

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

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Compressing and resizing http://www.lsv.fr/~halfon/nadine.JPG could save 100.4KiB (97% reduction).
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priority - 13Leverage 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:

http://www.lsv.fr/CSS/base.css (expiration not specified)
http://www.lsv.fr/CSS/deenhance.css (expiration not specified)
http://www.lsv.fr/CSS/enhance.css (expiration not specified)
http://www.lsv.fr/CSS/handheld.css (expiration not specified)
http://www.lsv.fr/CSS/lsv.css (expiration not specified)
http://www.lsv.fr/CSS/print.css (expiration not specified)
http://www.lsv.fr/Publis/biblsv-light.css (expiration not specified)
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http://www.lsv.fr/images/letter.png (expiration not specified)
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http://www.lsv.fr/images/logo-ensps.png (expiration not specified)
http://www.lsv.fr/images/plus.png (expiration not specified)
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http://www.lsv.fr/img/logos/lsv-white.png (expiration not specified)
http://www.lsv.fr/news/lsv.jpg (expiration not specified)
http://www.lsv.fr/~halfon/nadine.JPG (expiration not specified)
https://eacsl.kahle.ch/wp-content/uploads/2017/01/cropped-eacsl-1.jpg (expiration not specified)

priority - 0Minify CSS

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Minifying http://www.lsv.fr/CSS/enhance.css could save 700B (34% reduction) after compression.
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lsv.fr Mobile Resource Breakdown

Total Resources	22
Number of Hosts	6
Static Resources	19
CSS Resources	7

lsv.fr mobile page usability

Last tested: 2018-07-03

Mobile Usability Medium

65/100

lsv.fr Mobile Usability Test Quick Summary

priority - 31Use 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.

is the Europea…irmingham, UK. and 24 others render only 7 pixels tall (19 CSS pixels).

It Is Easy to…pened Before'' and 21 others render only 7 pixels tall (19 CSS pixels).

Centre Nationa…Scientifique ( and 34 others render only 7 pixels tall (19 CSS pixels).

On the infinit…h fixed points renders only 7 pixels tall (19 CSS pixels).

On Effective R…uasi-Orderings renders only 7 pixels tall (19 CSS pixels).

Salle Condorce…S Paris-Saclay and 1 others render only 7 pixels tall (19 CSS pixels).

Notices of the…atical Society and 2 others render only 7 pixels tall (19 CSS pixels).

Machine learni…-state systems and 6 others render only 7 pixels tall (19 CSS pixels).

(PhD student) and 6 others render only 7 pixels tall (19 CSS pixels).

• and 2 others render only 7 pixels tall (19 CSS pixels).

, Leibniz Inte…ür Informatik, and 10 others render only 7 pixels tall (19 CSS pixels).

Research and 5 others render only 8 pixels tall (20 CSS pixels).

English renders only 3 pixels tall (8 CSS pixels).

Français renders only 3 pixels tall (8 CSS pixels).

LSV renders only 7 pixels tall (17 CSS pixels).
Contact Information and 2 others render only 7 pixels tall (17 CSS pixels).
Address and 2 others render only 6 pixels tall (15 CSS pixels).
61, avenue du Président and 7 others render only 6 pixels tall (15 CSS pixels).
+33 1 47 40 75 20 and 5 others render only 6 pixels tall (15 CSS pixels).
Tue, Jul 24 renders only 6 pixels tall (15 CSS pixels).
11:00 renders only 6 pixels tall (15 CSS pixels).
SEM Markus renders only 6 pixels tall (15 CSS pixels).
Lohrey renders only 6 pixels tall (15 CSS pixels).
Lucca Hirschi…é Informatique and 6 others render only 6 pixels tall (15 CSS pixels).
Institut Unive…aire de France and 13 others render only 6 pixels tall (15 CSS pixels).
is the Europea…irmingham, UK. and 14 others render only 6 pixels tall (15 CSS pixels).
On the infinit…h fixed points renders only 6 pixels tall (15 CSS pixels).
Automated Veri…ory & Practice renders only 6 pixels tall (15 CSS pixels).

priority - 12Size 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="http://www.lsv.ens-cachan.fr">Laboratoire Sp…fication (LSV)</a> and 23 others are close to other tap targets.

The tap target <a href="http://www.iufrance.fr">Sylvain Schmitz nominated at</a> and 2 others are close to other tap targets.

The tap target <a href="https://eacsl.…ch/?page_id=65"></a> is close to 1 other tap targets.

The tap target <a href="https://www.ir…mane/these.pdf">On the infinit…h fixed points</a> is close to 1 other tap targets.

The tap target <a href="http://i-cav.org/cav-award">Alain Finkel a…eive CAV Award</a> is close to 1 other tap targets.

The tap target <a href="Stages/Fichier…d-18-afsh2.pdf">Reachability in Petri Nets</a> and 6 others are close to other tap targets.

The tap target <a href="http://www.lsv.ens-cachan.fr/">News</a> and 5 others are close to other tap targets.

The tap target <a id="private" href="https://intran…chan.fr/intra/">Private Pages</a> is close to 2 other tap targets.

The tap target <a href="news/rss-news" class="rss">RSS</a> and 1 others are close to other tap targets.

The tap target <a href="mailto:webmast….ens-cachan.fr" class="maintain">Webmaster</a> is close to 3 other tap targets.

The tap target <a href="" class="lang selected">English</a> is close to 2 other tap targets.

The tap target <a href="?l=fr" class="lang">Français</a> is close to 1 other tap targets.

The tap target <a href="http://www.iufrance.fr">Sylvain Schmitz nominated at</a> and 7 others are close to other tap targets.
The tap target <a href="http://www.lsv.fr/~schmitz/">Sylvain Schmitz</a> and 11 others are close to other tap targets.
The tap target <a href="https://eacsl.…ch/?page_id=65"></a> and 1 others are close to other tap targets.
The tap target <a href="https://www.ir…mane/these.pdf">On the infinit…h fixed points</a> is close to 1 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.

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,008 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <a href="?l=fr" class="lang">Français</a> falls outside the viewport.

lsv.fr HTML validation

Errors

Malformed byte sequence: “e9”.

Line: 7 Column: - 24
"......" Line: 7 Column: - 40
"......" Line: 10 Column: - 48
"......" Line: 10 Column: - 64
"......" Line: 37 Column: - 23
"......" Line: 37 Column: - 39
"......" Line: 40 Column: - 136
"......" Line: 40 Column: - 152
"......" Line: 40 Column: - 290
"......" Line: 40 Column: - 481
"......" Line: 275 Column: - 38
"......" Line: 275 Column: - 54
"......" Line: 275 Column: - 186
"......" Line: 276 Column: - 58
"......"

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Line: 1 Column: - 2
"...<?xml version="1..."

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

Line: 4 Column: 44 - 49
"...-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html..."

Bad value “schema.DC” for attribute “rel” on element “link”: The string “schema.DC” is not a registered keyword.

Line: 9 Column: 3 - 65
"...ata --> <link rel="schema.DC" href="http://purl.org/dc/elements/1.1/"/> <me..."

The “scheme” attribute on the “meta” element is obsolete. Use only one scheme per field, or make the scheme declaration part of the value.

Line: 11 Column: 3 - 55
"...tion"/> <meta name="DC.identifier" scheme="URI" content="/"/> <me..." Line: 12 Column: 3 - 58
"...t="/"/> <meta name="DC.language" scheme="RFC3066" content="en"/> <me..." Line: 13 Column: 3 - 58
"...="en"/> <meta name="DC.type" scheme="DCMITypes" content="Text"/> <me..." Line: 17 Column: 3 - 70
"...tion"/> <meta name="DC.date.modified" scheme="W3CDTF" content="2017-12-05"/> <!-..."

Malformed byte sequence: “c9”.

Line: 40 Column: - 273
"......" Line: 275 Column: - 169
"......"

Bad value “handheld” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 21 Column: 3 - 84
"....css"/> <link rel="stylesheet" media="handheld" type="text/css" href="/CSS/handheld.css"/> <li..."

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

Line: 25 Column: 3 - 58
"...ion --> <link rel="bookmark" title="Contents" href="#contents"/> <li..." Line: 27 Column: 3 - 68
"...f="/"/> <link rel="bookmark" title="LSV Navigation Menu" href="#lsvmenu"/> <li..." Line: 28 Column: 3 - 95
"...menu"/> <link rel="bookmark" title="Private Pages" href="https://intranet.lsv.ens-cachan.fr/PRIVE/"/> <!-..."

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)

Line: 76 Column: - 74
"...">Societ&eacute Informatique d..." Line: 338 Column: - 74
"...">Societ&eacute Informatique d..."

No “p” element in scope but a “p” end tag seen.

Line: 135 Column: 1 - 4
".../dd></dl> </p> </div..."

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

Line: 140 Column: 126 - 159
"...Member of <a href="http://www.iufrance.fr/">Instit..."

Stray end tag “a”.

Line: 140 Column: 196 - 199
"...France</a></a></h3> ..."

The “acronym” element is obsolete. Use the “abbr” element instead.

Line: 208 Column: 492 - 71
"...ooktitle"><acronym title="Proceedings of the 35rd Annual Symposium on Theoretical Aspects of Computer Science (STACS'18), Caen, France, February 2018">STACS'..." Line: 215 Column: 540 - 71
"...ooktitle"><acronym title="Proceedings of the 35rd Annual Symposium on Theoretical Aspects of Computer Science (STACS'18), Caen, France, February 2018">STACS'..." Line: 222 Column: 505 - 71
"...ooktitle"><acronym title="Proceedings of the 35rd Annual Symposium on Theoretical Aspects of Computer Science (STACS'18), Caen, France, February 2018">STACS'..."

The “itemtype” attribute must not be specified on elements that do not have an “itemscope” attribute specified.

Line: 230 Column: 5 - 100
"...</h2> <ul id="lsvmenu" title="LSV Navigation Menu" itemtype="http://schema.org/SiteNavigationElement"> ..."

“&” did not start a character reference. (“&” probably should have been escaped as “&”.)

Line: 252 Column: - 61
"...id="ens"><span>&Eactue;cole No..."

No space between attributes.

Line: 371 Column: - 203
"...pan class="nom"Doumane">Douman..."

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

Line: 371 Column: - 210
"...ss="nom"Doumane">Doumane</span..."

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

Line: 371 Column: 186 - 211
"...e/">Amina <span class="nom"Doumane">Douman..."

Warnings

Attribute “doumane"” is not serializable as XML 1.0.

Line: 371 Column: 186 - 211
"...e/">Amina <span class="nom"Doumane">Douman..."

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lsv.fr Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

lsv.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.

LSV.FR Laboratoire Spécification et Vérification

lsv.fr Website Information

Advertisement

lsv.fr Alexa Rank

lsv.fr whois

lsv.fr server information

Servers Location

lsv.fr desktop page speed rank

lsv.fr Desktop Speed Test Quick Summary

priority - 10Leverage 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:

priority - 7Optimize images

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

Optimize the following images to reduce their size by 63.5KiB (70% reduction).

priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

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 1.3KiB (30% reduction).

lsv.fr Desktop Resource Breakdown

lsv.fr mobile page speed rank

lsv.fr Mobile Speed Test Quick Summary

priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

priority - 20Optimize images

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

Optimize the following images to reduce their size by 194KiB (86% reduction).

priority - 13Leverage 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:

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 1.3KiB (30% reduction).

lsv.fr Mobile Resource Breakdown

lsv.fr mobile page usability

lsv.fr Mobile Usability Test Quick Summary

priority - 31Use 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.

priority - 12Size 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.

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.

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,008 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

lsv.fr HTML validation

Errors

Malformed byte sequence: “e9”.

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

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

Bad value “schema.DC” for attribute “rel” on element “link”: The string “schema.DC” is not a registered keyword.

The “scheme” attribute on the “meta” element is obsolete. Use only one scheme per field, or make the scheme declaration part of the value.

Malformed byte sequence: “c9”.

Bad value “handheld” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

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

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&amp;”.)

No “p” element in scope but a “p” end tag seen.

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

Stray end tag “a”.

The “acronym” element is obsolete. Use the “abbr” element instead.

The “itemtype” attribute must not be specified on elements that do not have an “itemscope” attribute specified.

“&” did not start a character reference. (“&” probably should have been escaped as “&amp;”.)

No space between attributes.

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

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

Warnings

Attribute “doumane"” is not serializable as XML 1.0.

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lsv.fr TRACEROUTE

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)

“&” did not start a character reference. (“&” probably should have been escaped as “&”.)