epfl.ch Website Information
Daily Unique Visits: 862,891
Daily Page Views: 6,903,128
Income Per Day: $6,903
Estimated Value: $7,455,240
This website is located in Switzerland and is using following IP address 128.178.222.108. See the complete list of popular websites hosted in Switzerland.
epfl.ch is registered under .CH top-level domain. Please check other sites in .CH zone.
Website epfl.ch is using the following name servers:
- stisun1.epfl.ch
- stisun2.epfl.ch
and is probably hosted by SWITCH. See the full list of other websites hosted by SWITCH.
The highest website epfl.ch position in Alexa rank database was 1678 and the lowest rank position was 1820. Current position of epfl.ch in Alexa rank database is 1766.
Desktop speed score of epfl.ch (61/100) is better than the results of 37.05% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of epfl.ch (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of epfl.ch (29/100) is better than the results of 9.19% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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epfl.ch 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.
epfl.ch 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.
Requests of this client are not permitted. Please use https://www.nic.ch/whois/ for queries.
epfl.ch server information
Servers Location
epfl.ch desktop page speed rank
Last tested: 2019-12-06
Desktop Speed
Bad
61/100
epfl.ch Desktop Speed Test Quick Summary
priority - 19Optimize images
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priority - 19Leverage 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://www.epfl.ch/wp-content/themes/wp-theme-2018/assets/icons/icons.svg (expiration not specified)
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priority - 14Reduce server response time
In our test, your server responded in 0.78 seconds.
priority - 12Avoid landing page redirects
Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://epfl.ch/
https://epfl.ch/
https://www.epfl.ch/
https://www.epfl.ch/en/
https://epfl.ch/
https://www.epfl.ch/
https://www.epfl.ch/en/
priority - 2Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://www.epfl.ch/wp-includes/css/dist/block-lib…tyle.min.css?ver=5.2.4
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 672B (39% reduction).
Minifying https://connect.facebook.net/en_US/sdk.js could save 672B (39% 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 532B (31% reduction).
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epfl.ch Desktop Resource Breakdown
| Total Resources | 186 |
| Number of Hosts | 22 |
| Static Resources | 144 |
| JavaScript Resources | 60 |
| CSS Resources | 28 |
epfl.ch mobile page speed rank
Last tested: 2017-05-04
Mobile Speed
Bad
29/100
epfl.ch Mobile Speed Test Quick Summary
priority - 211Optimize images
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priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js
Optimize CSS Delivery of the following:
http://static.epfl.ch/v0.23.0/styles/epfl-built.css
http://epfl.ch/public/hp2013/css/homepage.15784bbd351f.css
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priority - 3Leverage 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:
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http://www.google-analytics.com/analytics.js (2 hours)
priority - 1Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 3.1KiB (49% reduction).
Compressing http://epfl.ch/public/hp2013/img/instagram.5edc6c8f7733.svg could save 1.5KiB (47% reduction).
Compressing http://epfl.ch/public/hp2013/img/youtube.b81f1d5dbc6e.svg could save 977B (52% reduction).
Compressing http://epfl.ch/public/hp2013/img/google-plus.c16657b0e950.svg could save 607B (49% reduction).
Compressing http://epfl.ch/public/hp2013/img/youtube.b81f1d5dbc6e.svg could save 977B (52% reduction).
Compressing http://epfl.ch/public/hp2013/img/google-plus.c16657b0e950.svg could save 607B (49% reduction).
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 514B (25% reduction).
Minifying http://epfl.ch/public/hp2013/js/homepage.b7546cee38a3.js could save 514B (25% reduction) after compression.
epfl.ch Mobile Resource Breakdown
| Total Resources | 77 |
| Number of Hosts | 11 |
| Static Resources | 72 |
| JavaScript Resources | 10 |
| CSS Resources | 5 |
epfl.ch mobile page usability
Last tested: 2017-05-04
Mobile Usability
Good
99/100
epfl.ch Mobile Usability Test Quick Summary
priority - 1Size 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
<nav class="nav nav-inline lang">françaisEnglish</nav> is close to 1 other tap targets.The tap target
<nav class="nav nav-inline lang">françaisEnglish</nav> is close to 1 other tap targets.The tap target
<nav class="nav nav-inline lang">françaisEnglish</nav> is close to 1 other tap targets.The tap target
<a href="index.fr.html" class="nav-link">français</a> is close to 1 other tap targets.The tap target
<a href="index.en.html" class="nav-link">English</a> is close to 1 other tap targets.The tap target
<a href="http://fribour…pfl.ch/fr/home">Fribourg</a> and 3 others are close to other tap targets.The tap target
<label for="choice1" class="hp-survey-choice-label">Ils ne peuvent…irer la langue</label> and 2 others are close to other tap targets.The tap target
<a href="https://twitte…om/EPFLlibrary" class="TweetAuthor-li…ty u-linkBlend">EPFL Library…@EPFLlibrary</a> is close to 1 other tap targets.The tap target
<a href="https://twitte…om/EPFLlibrary" class="TweetAuthor-li…ty u-linkBlend">EPFL Library…@EPFLlibrary</a> is close to 1 other tap targets.The tap target
<a href="https://twitte…Party?src=hash" class="PrettyLink has…g customisable">#MurderParty</a> and 2 others are close to other tap targets.epfl.ch HTML validation
Errors
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Line: 1 Column: 121 - 182
"...=utf-8" /><meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"><meta ..."
"...=utf-8" /><meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"><meta ..."
The element “header” must not appear as a descendant of the “header” element.
Line: 1 Column: 4296 - 4303
"...vertical"><header><h2 cl..." Line: 1 Column: 4912 - 4919
"...vertical"><header><h2 cl..." Line: 1 Column: 5400 - 5407
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"...tical"><header><h2 class..."
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"...tical"><header><h2 class..." Line: 1 Column: 13444 - 13451
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"...tical"><header><h2 class..." Line: 1 Column: 14972 - 14979
"...tical"><header><h2 class..." Line: 1 Column: 15866 - 15873
"...tical"><header><h2 class..." Line: 1 Column: 16663 - 16670
"...tical"><header><h2 class..." Line: 1 Column: 17366 - 17373
"...tical"><header><h2 class..."
No space between attributes.
Line: 1 Column: - 7790
"...s="nav-link"href="//teaching.e..."
"...s="nav-link"href="//teaching.e..."
Bad value for attribute “src” on element “img”: Illegal character in scheme data: “<” is not allowed.
Line: 32 Column: 19177 - 93
"...-prev"><img alt="Previous news" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="45" height="45" viewBox="0 0 50 50"> <filter x="-0.5" y="-0.5" width="2" height="2" color-interpolation-filters="sRGB" id="dropShadow"> <feGaussianBlur in="SourceAlpha" stdDeviation="3" id="feGaussianBlur5" /> <feMerge id="feMerge7"> <feMergeNode id="feMergeNode9" /> <feMergeNode in="SourceGraphic" id="feMergeNode11" /> </feMerge> </filter> <path d="m 32.5,10 -15,15 15,15" style="fill:none;stroke:%23ffffff;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;filter:url(%23dropShadow)" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/left-arrow-big.2610a962ae7f.png'"></div>..." Line: 63 Column: 143 - 94
"...sel-next"><img alt="Next news" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="45" height="45" viewBox="0 0 50 50"> <filter x="-0.5" y="-0.5" width="2" height="2" color-interpolation-filters="sRGB" id="dropShadow"> <feGaussianBlur id="feGaussianBlur5" stdDeviation="3" in="SourceAlpha" /> <feMerge id="feMerge7"> <feMergeNode id="feMergeNode9" /> <feMergeNode id="feMergeNode11" in="SourceGraphic" /> </feMerge> </filter> <path d="m 17.5,40 15,-15 -15,-15" style="fill:none;stroke:%23ffffff;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;filter:url(%23dropShadow)" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/right-arrow-big.e01f56e79f9c.png'"></div>..." Line: 84 Column: 84 - 90
"...lécules"/><img class="hp-news-play-button" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="-1 -1 514 514" width="50" height="50" image-rendering="optimizeQuality" > <path d="M 256,-0.5 C 114.34677,-0.5 -0.5,114.34677 -0.5,256 -0.5,397.65223 114.34677,512.5 256,512.5 397.65223,512.5 512.5,397.65223 512.5,256 512.5,114.34677 397.65223,-0.5 256,-0.5 z" style="fill:%238c0406;stroke:none" /> <path d="m 211.5,163.90625 c -1.2766,-0.16531 -2.43851,0.0429 -3.4375,0.59375 -1.99799,1.10168 -3.1875,3.55091 -3.1875,6.90625 l 0,169.1875 c 0,3.36017 1.18902,5.80666 3.1875,6.90625 1.99848,1.09959 4.666,0.79409 7.5,-1 l 132.75,-83.8125 c 2.84481,-1.7985 4.34375,-4.21868 4.34375,-6.6875 0,-2.46882 -1.49894,-4.889 -4.34375,-6.6875 L 215.5625,165.5 c -1.41712,-0.89479 -2.7859,-1.42844 -4.0625,-1.59375 z" style="fill:%23fff;stroke:none" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/play-button.cb635c5889fb.png'"></a><s..." Line: 112 Column: 4765 - 87
"...ebook</h3><img alt="Facebook" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="11.0" width="23.836523" height="51" viewBox="0 0 2393 5120"> <path fill="%23fff" d="M 1599,5120 H 640 V 2560 H 0 v -882 l 640,0 -1,-520 C 639,438 834,0 1682,0 h 706 v 882 h -441 c -330,0 -346,123 -346,353 l -1,442 h 793 l -94,882 -699,0 -1,2560 z" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/facebook.d5b32f19be66.png'"><div c..." Line: 125 Column: 305 - 88
"...kedIn</h3><img alt="LinkedIn" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="53.385422" height="66.027946" viewBox="0 0 53.385422 66.027946"> <g style="fill:%23fff;fill-opacity:1;fill-rule:evenodd;stroke:none" transform="translate(-425.2822,-393.54523)"> <path d="m 437.40268,459.57318 0,-34.43024 -11.44398,0 0,34.43024 11.44398,0 z m -5.72204,-39.13111 c 3.99075,0 6.47465,-2.64385 6.47465,-5.94791 -0.0744,-3.37843 -2.4839,-5.94893 -6.39895,-5.94893 -3.91464,0 -6.47414,2.5705 -6.47414,5.94893 0,3.30406 2.48339,5.94791 6.32386,5.94791 l 0.0744,0 z" /> <path d="m 443.73499,459.57318 11.44388,0 0,-19.2273 c 0,-1.02902 0.0744,-2.05702 0.37656,-2.79261 0.82728,-2.05599 2.71028,-4.18534 5.8717,-4.18534 4.14102,0 5.79753,3.15735 5.79753,7.78588 l 0,18.41937 11.44296,0 0,-19.74181 c 0,-10.57543 -5.64583,-15.49636 -13.17507,-15.49636 -6.17368,0 -8.88396,3.45077 -10.38979,5.8012 l 0.0764,0 0,-4.99327 -11.44387,0 c 0.15018,3.2307 0,34.43024 0,34.43024 z" /> </g> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/linkedin.c145e8c0d848.png'"/><div c..." Line: 127 Column: 219 - 87
"...ter</h3><img alt="Twitter" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="51" height="41.4" viewBox="0 0 5121 4159"><path d="M 5121,493 C 4933,577 4730,633 4518,658 4735,528 4901,322 4980,77 4777,197 4552,285 4313,332 4121,128 3848,0 3546,0 2966,0 2496,470 2496,1050 c 0,82 9,163 27,239 C 1650,1245 876,827 358,191 268,346 216,527 216,719 c 0,364 185,686 467,874 -172,-5 -334,-53 -476,-131 0,4 0,9 0,13 0,509 362,933 843,1030 -88,24 -181,37 -277,37 -68,0 -133,-7 -198,-19 134,417 522,721 981,729 -360,282 -812,450 -1305,450 -85,0 -168,-5 -251,-15 465,298 1017,472 1610,472 1932,0 2989,-1601 2989,-2989 0,-46 -1,-91 -3,-136 205,-148 383,-333 524,-544 z" style="fill:%23ffffff;fill-opacity:1;stroke:none" /></svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/twitter.4ded64d7de73.png'"/><div c..." Line: 138 Column: 292 - 87
"...uTube</h3><img alt="YouTube" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="11.0" width="36.398212" height="44.009823" viewBox="0 0 3678.1352 4481.0001"> <path d="m 2346.4545,3110 v 528 q 0,168 -98,168 -58,0 -113,-55 v -753 q 55,-55 113,-55 98,0 98,168 z m 845,3 v 115 h -225 v -115 q 0,-170 113,-170 113,0 113,170 z M 776.45455,2568 H 1044.4545 V 2333 H 264.45455 v 235 h 263 v 1423 h 250 V 2568 z m 719.99995,1422 h 223 V 2755 h -223 v 945 q -75,105 -143,105 -45,0 -53,-53 -3,-8 -3,-88 v -910 h -223 v 978 q 0,123 20,183 30,93 145,93 120,0 255,-153 v 135 z m 1072,-370 v -493 q 0,-183 -23,-248 -43,-140 -178,-140 -125,0 -233,135 v -543 h -223 v 1658 h 223 v -120 q 113,138 233,138 135,0 178,-138 23,-68 23,-250 z m 845,-25 v -33 h -228 q 0,128 -5,153 -18,90 -100,90 -115,0 -115,-173 v -218 h 448 v -258 q 0,-198 -68,-290 -98,-128 -265,-128 -170,0 -268,128 -70,93 -70,290 v 433 q 0,198 73,290 98,128 270,128 180,0 270,-133 45,-68 53,-135 5,-23 5,-145 z m -1520,-2282 V 788 q 0,-173 -108,-173 -108,0 -108,173 v 525 q 0,175 108,175 108,0 108,-175 z m 1798,1877 q 0,585 -65,875 -35,148 -145,248 -110,100 -255,115 -460,53 -1388,53 -927.99995,0 -1387.99995,-53 -145,-15 -256,-115 -111.000005,-100 -144.000005,-248 -65,-280 -65,-875 0,-585 65,-875 35,-148 145.000005,-248 110,-100 258,-118 458,-50 1384.99995,-50 927,0 1388,50 145,18 256,118 111,100 144,248 65,280 65,875 z m -2495,-3190 h 255 l -303,998 v 678 H 898.45455 V 998 q -35,-185 -153,-530 -93,-258 -163,-468 h 265 l 177.99995,658 z m 925,833 v 438 q 0,203 -70,295 -93,128 -265,128 -168,0 -263,-128 -70,-95 -70,-295 V 833 q 0,-200 70,-293 95,-128 263,-128 173,0 265,128 70,93 70,293 z m 837,-405 v 1248 h -228 v -138 q -133,155 -258,155 -115,0 -148,-93 -20,-60 -20,-188 V 427 h 228 v 918 q 0,83 3,88 8,55 53,55 68,0 143,-108 V 427 h 228 z" style="fill:%23fff" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/youtube.0f2ad27475ad.png'"/><div c..." Line: 148 Column: 307 - 89
"...agram</h3><img alt="Instagram" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="415" height="416" viewBox="0 0 415 416"> <path d="M 64.438226,415.00437 C 30.079385,404.81863 7.403675,381.2533 1.778875,348 0.19411493,275.611 0.74454493,225.98233 0.73804493,147 L 128.73805,147 c 0,0 -6.10555,8.56402 -7.94988,11.65854 -4.90198,8.12758 -9.52143,19.11322 -12.2643,29.16603 -3.28988,12.05766 -3.05362,33.33513 0.51748,46.60405 11.35169,42.17875 46.28681,72.32863 89.83279,77.52793 29.08774,3.47302 60.0469,-8.67203 82.61734,-32.41017 C 299.6069,260.49375 309.86309,235.78529 309.94427,211 310.00637,192.04205 303.75342,171.1161 293.6051,156.31982 291.48709,153.32054 286.73805,147 286.73805,147 c 0,0 87.33333,0 129,0 l -0.008,97.25 c -0.005,61.49995 -0.38446,99.63946 -1.03283,103.75 -5.27709,33.45549 -30.58534,60.33311 -63.13456,67.04953 -8.94051,1.84494 -14.86461,1.92184 -143.82461,1.86697 C 80.700606,416.8624 72.749776,416.75636 64.437776,415.00437 z M 194.39902,292.93753 c -26.47487,-3.67015 -49.88111,-20.9127 -61.68007,-45.43753 -6.23557,-12.96102 -7.39495,-18.72634 -7.44054,-37 -0.0445,-17.84798 1.53635,-25.72254 7.58843,-37.79918 15.26902,-30.46861 44.21584,-47.02053 79.37166,-45.38508 19.21608,0.89394 34.30367,6.30593 47.99458,17.21588 13.84242,11.03069 24.23137,26.99982 28.60425,43.96838 2.45636,9.53168 2.9593,30.51836 0.95859,40 -6.46006,30.61501 -29.4951,54.79114 -59.55742,62.5077 -9.3473,2.39932 -25.98884,3.29541 -35.83948,1.92983 z M 223.7385,264.8657 c 18.51389,-5.8633 33.96128,-22.01766 39.5554,-41.3657 5.06012,-17.5011 -0.76724,-37.67561 -15.04174,-52.07504 -11.95809,-12.06273 -24.71172,-17.70629 -40.01366,-17.70629 -15.30194,0 -28.05557,5.64356 -40.01366,17.70629 -14.2745,14.39943 -20.10186,34.57394 -15.04174,52.07504 5.60009,19.3687 20.98539,35.44809 39.60264,41.38927 8.99584,2.87077 21.84453,2.86099 30.95276,-0.0236 z M 1.830145,68.84724 C 4.753665,50.00472 14.811105,31.78155 28.956485,19.69677 32.421315,16.63299 35.390446,15 39.738496,15 c 0,29 0,58 0,87 3.9936,0 7.98719,0 11.98079,0 0.17308,-32.10922 0.34614,-64.21845 0.51921,-96.32767 6.14004,-2.13504 10.47821,-3.52873 16.5,-3.67233 0,33.33333 0,66.66667 0,100 3.66667,0 7.33333,0 11,0 0,-34 0,-68 0,-102 5.66667,0 11.33333,0 17,0 0,34 0,68 0,102 3.666674,0 7.333334,0 11.000004,0 0,-34 0,-68 0,-102 l 117.25,0.0131 c 111.7841,0.0125 117.68471,0.10284 126.57506,1.93733 32.54922,6.71643 57.85747,33.59404 63.13456,67.04953 1.4021,24.86409 1.03433,44.19534 1.04083,70 -45.02954,0 -90.05907,0 -135.08861,0 l -7.86999,-6.40584 c -13.18211,-10.72967 -25.92684,-17.20907 -42.85466,-21.78724 -11.8672,-3.20951 -32.41282,-3.0108 -45.30562,0.43819 -16.18406,4.32943 -32.15428,12.80357 -43.52805,23.09689 l -5.14693,4.658 c -45.068714,0 -135.20614507,0 -135.20614507,0 0,0 -2.24501993,-45.85979 1.09120007,-70.15272 z m 363.190475,34.78164 c 1.76983,-0.75412 4.34288,-2.58945 5.71788,-4.07851 2.49762,-2.7048 2.50029,-2.72962 2.80076,-26.03951 0.33756,-26.18719 -0.16937,-28.93613 -5.99058,-32.48523 -3.06679,-1.86976 -5.00133,-2.01815 -26.31018,-2.01815 -33.57339,0 -32.5,-1.07478 -32.5,32.54173 0,26.11584 0.43358,27.97137 7.3341,31.38711 3.80392,1.88293 5.97166,2.06217 24.94802,2.06289 15.37502,5.8e-4 21.61935,-0.35595 24,-1.37033 z" style="fill:%23fefefe" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/instagram.dbd682ab0e26.png'"/><div c..." Line: 162 Column: 312 - 91
"...ogle+</h3><img alt="Google+" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1" width="379" height="340" viewBox="0 0 38475 34685"> <path d="m 38582,6950 -6950,0 0,-6950 -1737,0 0,6950 -6950,0 0,1737 6950,0 0,6950 1737,0 0,-6950 6950,0 0,-1737 z" style="fill:%23ffffff;fill-opacity:1;fill-rule:nonzero;stroke:none" /> <path d="m 17771,19966 c -970,-687 -2827,-2358 -2827,-3341 0,-1151 328,-1718 2061,-3072 1776,-1387 3033,-3339 3033,-5609 0,-2702 -1203,-5335 -3462,-6204 l 3405,0 L 22386,0 c 0,0 -8056,0 -10741,0 -4815,0 -9348,3648 -9348,7874 0,4318 3282,7804 8182,7804 340,0 671,-6 995,-30 -317,608 -545,1294 -545,2006 0,1200 645,2173 1462,2967 -616,0 -1212,17 -1862,17 -5964,0 -10556,3799 -10556,7738 0,3879 5033,6306 10998,6306 6800,0 10556,-3858 10556,-7738 0,-3110 -918,-4974 -3756,-6981 z m -5738,-5382 0,0 C 9265,14501 6635,11487 6157,7854 5679,4219 7535,1437 10302,1520 c 2766,83 5397,2999 5875,6633 477,3634 -1378,6512 -4145,6430 z m -1083,18386 0,0 c -4122,0 -7100,-2609 -7100,-5745 0,-3072 3693,-5630 7816,-5586 962,10 1858,165 2672,428 2238,1556 3843,2436 4296,4209 85,359 131,729 131,1107 0,3135 -2020,5585 -7816,5585" style="fill:%23ffffff;fill-opacity:1;fill-rule:nonzero;stroke:none" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/google-plus.e9b82cb024c8.png'"/><div c..."
"...-prev"><img alt="Previous news" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="45" height="45" viewBox="0 0 50 50"> <filter x="-0.5" y="-0.5" width="2" height="2" color-interpolation-filters="sRGB" id="dropShadow"> <feGaussianBlur in="SourceAlpha" stdDeviation="3" id="feGaussianBlur5" /> <feMerge id="feMerge7"> <feMergeNode id="feMergeNode9" /> <feMergeNode in="SourceGraphic" id="feMergeNode11" /> </feMerge> </filter> <path d="m 32.5,10 -15,15 15,15" style="fill:none;stroke:%23ffffff;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;filter:url(%23dropShadow)" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/left-arrow-big.2610a962ae7f.png'"></div>..." Line: 63 Column: 143 - 94
"...sel-next"><img alt="Next news" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="45" height="45" viewBox="0 0 50 50"> <filter x="-0.5" y="-0.5" width="2" height="2" color-interpolation-filters="sRGB" id="dropShadow"> <feGaussianBlur id="feGaussianBlur5" stdDeviation="3" in="SourceAlpha" /> <feMerge id="feMerge7"> <feMergeNode id="feMergeNode9" /> <feMergeNode id="feMergeNode11" in="SourceGraphic" /> </feMerge> </filter> <path d="m 17.5,40 15,-15 -15,-15" style="fill:none;stroke:%23ffffff;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;filter:url(%23dropShadow)" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/right-arrow-big.e01f56e79f9c.png'"></div>..." Line: 84 Column: 84 - 90
"...lécules"/><img class="hp-news-play-button" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="-1 -1 514 514" width="50" height="50" image-rendering="optimizeQuality" > <path d="M 256,-0.5 C 114.34677,-0.5 -0.5,114.34677 -0.5,256 -0.5,397.65223 114.34677,512.5 256,512.5 397.65223,512.5 512.5,397.65223 512.5,256 512.5,114.34677 397.65223,-0.5 256,-0.5 z" style="fill:%238c0406;stroke:none" /> <path d="m 211.5,163.90625 c -1.2766,-0.16531 -2.43851,0.0429 -3.4375,0.59375 -1.99799,1.10168 -3.1875,3.55091 -3.1875,6.90625 l 0,169.1875 c 0,3.36017 1.18902,5.80666 3.1875,6.90625 1.99848,1.09959 4.666,0.79409 7.5,-1 l 132.75,-83.8125 c 2.84481,-1.7985 4.34375,-4.21868 4.34375,-6.6875 0,-2.46882 -1.49894,-4.889 -4.34375,-6.6875 L 215.5625,165.5 c -1.41712,-0.89479 -2.7859,-1.42844 -4.0625,-1.59375 z" style="fill:%23fff;stroke:none" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/play-button.cb635c5889fb.png'"></a><s..." Line: 112 Column: 4765 - 87
"...ebook</h3><img alt="Facebook" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="11.0" width="23.836523" height="51" viewBox="0 0 2393 5120"> <path fill="%23fff" d="M 1599,5120 H 640 V 2560 H 0 v -882 l 640,0 -1,-520 C 639,438 834,0 1682,0 h 706 v 882 h -441 c -330,0 -346,123 -346,353 l -1,442 h 793 l -94,882 -699,0 -1,2560 z" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/facebook.d5b32f19be66.png'"><div c..." Line: 125 Column: 305 - 88
"...kedIn</h3><img alt="LinkedIn" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="53.385422" height="66.027946" viewBox="0 0 53.385422 66.027946"> <g style="fill:%23fff;fill-opacity:1;fill-rule:evenodd;stroke:none" transform="translate(-425.2822,-393.54523)"> <path d="m 437.40268,459.57318 0,-34.43024 -11.44398,0 0,34.43024 11.44398,0 z m -5.72204,-39.13111 c 3.99075,0 6.47465,-2.64385 6.47465,-5.94791 -0.0744,-3.37843 -2.4839,-5.94893 -6.39895,-5.94893 -3.91464,0 -6.47414,2.5705 -6.47414,5.94893 0,3.30406 2.48339,5.94791 6.32386,5.94791 l 0.0744,0 z" /> <path d="m 443.73499,459.57318 11.44388,0 0,-19.2273 c 0,-1.02902 0.0744,-2.05702 0.37656,-2.79261 0.82728,-2.05599 2.71028,-4.18534 5.8717,-4.18534 4.14102,0 5.79753,3.15735 5.79753,7.78588 l 0,18.41937 11.44296,0 0,-19.74181 c 0,-10.57543 -5.64583,-15.49636 -13.17507,-15.49636 -6.17368,0 -8.88396,3.45077 -10.38979,5.8012 l 0.0764,0 0,-4.99327 -11.44387,0 c 0.15018,3.2307 0,34.43024 0,34.43024 z" /> </g> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/linkedin.c145e8c0d848.png'"/><div c..." Line: 127 Column: 219 - 87
"...ter</h3><img alt="Twitter" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="51" height="41.4" viewBox="0 0 5121 4159"><path d="M 5121,493 C 4933,577 4730,633 4518,658 4735,528 4901,322 4980,77 4777,197 4552,285 4313,332 4121,128 3848,0 3546,0 2966,0 2496,470 2496,1050 c 0,82 9,163 27,239 C 1650,1245 876,827 358,191 268,346 216,527 216,719 c 0,364 185,686 467,874 -172,-5 -334,-53 -476,-131 0,4 0,9 0,13 0,509 362,933 843,1030 -88,24 -181,37 -277,37 -68,0 -133,-7 -198,-19 134,417 522,721 981,729 -360,282 -812,450 -1305,450 -85,0 -168,-5 -251,-15 465,298 1017,472 1610,472 1932,0 2989,-1601 2989,-2989 0,-46 -1,-91 -3,-136 205,-148 383,-333 524,-544 z" style="fill:%23ffffff;fill-opacity:1;stroke:none" /></svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/twitter.4ded64d7de73.png'"/><div c..." Line: 138 Column: 292 - 87
"...uTube</h3><img alt="YouTube" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="11.0" width="36.398212" height="44.009823" viewBox="0 0 3678.1352 4481.0001"> <path d="m 2346.4545,3110 v 528 q 0,168 -98,168 -58,0 -113,-55 v -753 q 55,-55 113,-55 98,0 98,168 z m 845,3 v 115 h -225 v -115 q 0,-170 113,-170 113,0 113,170 z M 776.45455,2568 H 1044.4545 V 2333 H 264.45455 v 235 h 263 v 1423 h 250 V 2568 z m 719.99995,1422 h 223 V 2755 h -223 v 945 q -75,105 -143,105 -45,0 -53,-53 -3,-8 -3,-88 v -910 h -223 v 978 q 0,123 20,183 30,93 145,93 120,0 255,-153 v 135 z m 1072,-370 v -493 q 0,-183 -23,-248 -43,-140 -178,-140 -125,0 -233,135 v -543 h -223 v 1658 h 223 v -120 q 113,138 233,138 135,0 178,-138 23,-68 23,-250 z m 845,-25 v -33 h -228 q 0,128 -5,153 -18,90 -100,90 -115,0 -115,-173 v -218 h 448 v -258 q 0,-198 -68,-290 -98,-128 -265,-128 -170,0 -268,128 -70,93 -70,290 v 433 q 0,198 73,290 98,128 270,128 180,0 270,-133 45,-68 53,-135 5,-23 5,-145 z m -1520,-2282 V 788 q 0,-173 -108,-173 -108,0 -108,173 v 525 q 0,175 108,175 108,0 108,-175 z m 1798,1877 q 0,585 -65,875 -35,148 -145,248 -110,100 -255,115 -460,53 -1388,53 -927.99995,0 -1387.99995,-53 -145,-15 -256,-115 -111.000005,-100 -144.000005,-248 -65,-280 -65,-875 0,-585 65,-875 35,-148 145.000005,-248 110,-100 258,-118 458,-50 1384.99995,-50 927,0 1388,50 145,18 256,118 111,100 144,248 65,280 65,875 z m -2495,-3190 h 255 l -303,998 v 678 H 898.45455 V 998 q -35,-185 -153,-530 -93,-258 -163,-468 h 265 l 177.99995,658 z m 925,833 v 438 q 0,203 -70,295 -93,128 -265,128 -168,0 -263,-128 -70,-95 -70,-295 V 833 q 0,-200 70,-293 95,-128 263,-128 173,0 265,128 70,93 70,293 z m 837,-405 v 1248 h -228 v -138 q -133,155 -258,155 -115,0 -148,-93 -20,-60 -20,-188 V 427 h 228 v 918 q 0,83 3,88 8,55 53,55 68,0 143,-108 V 427 h 228 z" style="fill:%23fff" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/youtube.0f2ad27475ad.png'"/><div c..." Line: 148 Column: 307 - 89
"...agram</h3><img alt="Instagram" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="415" height="416" viewBox="0 0 415 416"> <path d="M 64.438226,415.00437 C 30.079385,404.81863 7.403675,381.2533 1.778875,348 0.19411493,275.611 0.74454493,225.98233 0.73804493,147 L 128.73805,147 c 0,0 -6.10555,8.56402 -7.94988,11.65854 -4.90198,8.12758 -9.52143,19.11322 -12.2643,29.16603 -3.28988,12.05766 -3.05362,33.33513 0.51748,46.60405 11.35169,42.17875 46.28681,72.32863 89.83279,77.52793 29.08774,3.47302 60.0469,-8.67203 82.61734,-32.41017 C 299.6069,260.49375 309.86309,235.78529 309.94427,211 310.00637,192.04205 303.75342,171.1161 293.6051,156.31982 291.48709,153.32054 286.73805,147 286.73805,147 c 0,0 87.33333,0 129,0 l -0.008,97.25 c -0.005,61.49995 -0.38446,99.63946 -1.03283,103.75 -5.27709,33.45549 -30.58534,60.33311 -63.13456,67.04953 -8.94051,1.84494 -14.86461,1.92184 -143.82461,1.86697 C 80.700606,416.8624 72.749776,416.75636 64.437776,415.00437 z M 194.39902,292.93753 c -26.47487,-3.67015 -49.88111,-20.9127 -61.68007,-45.43753 -6.23557,-12.96102 -7.39495,-18.72634 -7.44054,-37 -0.0445,-17.84798 1.53635,-25.72254 7.58843,-37.79918 15.26902,-30.46861 44.21584,-47.02053 79.37166,-45.38508 19.21608,0.89394 34.30367,6.30593 47.99458,17.21588 13.84242,11.03069 24.23137,26.99982 28.60425,43.96838 2.45636,9.53168 2.9593,30.51836 0.95859,40 -6.46006,30.61501 -29.4951,54.79114 -59.55742,62.5077 -9.3473,2.39932 -25.98884,3.29541 -35.83948,1.92983 z M 223.7385,264.8657 c 18.51389,-5.8633 33.96128,-22.01766 39.5554,-41.3657 5.06012,-17.5011 -0.76724,-37.67561 -15.04174,-52.07504 -11.95809,-12.06273 -24.71172,-17.70629 -40.01366,-17.70629 -15.30194,0 -28.05557,5.64356 -40.01366,17.70629 -14.2745,14.39943 -20.10186,34.57394 -15.04174,52.07504 5.60009,19.3687 20.98539,35.44809 39.60264,41.38927 8.99584,2.87077 21.84453,2.86099 30.95276,-0.0236 z M 1.830145,68.84724 C 4.753665,50.00472 14.811105,31.78155 28.956485,19.69677 32.421315,16.63299 35.390446,15 39.738496,15 c 0,29 0,58 0,87 3.9936,0 7.98719,0 11.98079,0 0.17308,-32.10922 0.34614,-64.21845 0.51921,-96.32767 6.14004,-2.13504 10.47821,-3.52873 16.5,-3.67233 0,33.33333 0,66.66667 0,100 3.66667,0 7.33333,0 11,0 0,-34 0,-68 0,-102 5.66667,0 11.33333,0 17,0 0,34 0,68 0,102 3.666674,0 7.333334,0 11.000004,0 0,-34 0,-68 0,-102 l 117.25,0.0131 c 111.7841,0.0125 117.68471,0.10284 126.57506,1.93733 32.54922,6.71643 57.85747,33.59404 63.13456,67.04953 1.4021,24.86409 1.03433,44.19534 1.04083,70 -45.02954,0 -90.05907,0 -135.08861,0 l -7.86999,-6.40584 c -13.18211,-10.72967 -25.92684,-17.20907 -42.85466,-21.78724 -11.8672,-3.20951 -32.41282,-3.0108 -45.30562,0.43819 -16.18406,4.32943 -32.15428,12.80357 -43.52805,23.09689 l -5.14693,4.658 c -45.068714,0 -135.20614507,0 -135.20614507,0 0,0 -2.24501993,-45.85979 1.09120007,-70.15272 z m 363.190475,34.78164 c 1.76983,-0.75412 4.34288,-2.58945 5.71788,-4.07851 2.49762,-2.7048 2.50029,-2.72962 2.80076,-26.03951 0.33756,-26.18719 -0.16937,-28.93613 -5.99058,-32.48523 -3.06679,-1.86976 -5.00133,-2.01815 -26.31018,-2.01815 -33.57339,0 -32.5,-1.07478 -32.5,32.54173 0,26.11584 0.43358,27.97137 7.3341,31.38711 3.80392,1.88293 5.97166,2.06217 24.94802,2.06289 15.37502,5.8e-4 21.61935,-0.35595 24,-1.37033 z" style="fill:%23fefefe" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/instagram.dbd682ab0e26.png'"/><div c..." Line: 162 Column: 312 - 91
"...ogle+</h3><img alt="Google+" class="hp-socialNetwork-logo" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1" width="379" height="340" viewBox="0 0 38475 34685"> <path d="m 38582,6950 -6950,0 0,-6950 -1737,0 0,6950 -6950,0 0,1737 6950,0 0,6950 1737,0 0,-6950 6950,0 0,-1737 z" style="fill:%23ffffff;fill-opacity:1;fill-rule:nonzero;stroke:none" /> <path d="m 17771,19966 c -970,-687 -2827,-2358 -2827,-3341 0,-1151 328,-1718 2061,-3072 1776,-1387 3033,-3339 3033,-5609 0,-2702 -1203,-5335 -3462,-6204 l 3405,0 L 22386,0 c 0,0 -8056,0 -10741,0 -4815,0 -9348,3648 -9348,7874 0,4318 3282,7804 8182,7804 340,0 671,-6 995,-30 -317,608 -545,1294 -545,2006 0,1200 645,2173 1462,2967 -616,0 -1212,17 -1862,17 -5964,0 -10556,3799 -10556,7738 0,3879 5033,6306 10998,6306 6800,0 10556,-3858 10556,-7738 0,-3110 -918,-4974 -3756,-6981 z m -5738,-5382 0,0 C 9265,14501 6635,11487 6157,7854 5679,4219 7535,1437 10302,1520 c 2766,83 5397,2999 5875,6633 477,3634 -1378,6512 -4145,6430 z m -1083,18386 0,0 c -4122,0 -7100,-2609 -7100,-5745 0,-3072 3693,-5630 7816,-5586 962,10 1858,165 2672,428 2238,1556 3843,2436 4296,4209 85,359 131,729 131,1107 0,3135 -2020,5585 -7816,5585" style="fill:%23ffffff;fill-opacity:1;fill-rule:nonzero;stroke:none" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/google-plus.e9b82cb024c8.png'"/><div c..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 84 Column: 84 - 90
"...lécules"/><img class="hp-news-play-button" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="-1 -1 514 514" width="50" height="50" image-rendering="optimizeQuality" > <path d="M 256,-0.5 C 114.34677,-0.5 -0.5,114.34677 -0.5,256 -0.5,397.65223 114.34677,512.5 256,512.5 397.65223,512.5 512.5,397.65223 512.5,256 512.5,114.34677 397.65223,-0.5 256,-0.5 z" style="fill:%238c0406;stroke:none" /> <path d="m 211.5,163.90625 c -1.2766,-0.16531 -2.43851,0.0429 -3.4375,0.59375 -1.99799,1.10168 -3.1875,3.55091 -3.1875,6.90625 l 0,169.1875 c 0,3.36017 1.18902,5.80666 3.1875,6.90625 1.99848,1.09959 4.666,0.79409 7.5,-1 l 132.75,-83.8125 c 2.84481,-1.7985 4.34375,-4.21868 4.34375,-6.6875 0,-2.46882 -1.49894,-4.889 -4.34375,-6.6875 L 215.5625,165.5 c -1.41712,-0.89479 -2.7859,-1.42844 -4.0625,-1.59375 z" style="fill:%23fff;stroke:none" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/play-button.cb635c5889fb.png'"></a><s..."
"...lécules"/><img class="hp-news-play-button" src="data:image/svg+xml;charset=UTF-8,<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="-1 -1 514 514" width="50" height="50" image-rendering="optimizeQuality" > <path d="M 256,-0.5 C 114.34677,-0.5 -0.5,114.34677 -0.5,256 -0.5,397.65223 114.34677,512.5 256,512.5 397.65223,512.5 512.5,397.65223 512.5,256 512.5,114.34677 397.65223,-0.5 256,-0.5 z" style="fill:%238c0406;stroke:none" /> <path d="m 211.5,163.90625 c -1.2766,-0.16531 -2.43851,0.0429 -3.4375,0.59375 -1.99799,1.10168 -3.1875,3.55091 -3.1875,6.90625 l 0,169.1875 c 0,3.36017 1.18902,5.80666 3.1875,6.90625 1.99848,1.09959 4.666,0.79409 7.5,-1 l 132.75,-83.8125 c 2.84481,-1.7985 4.34375,-4.21868 4.34375,-6.6875 0,-2.46882 -1.49894,-4.889 -4.34375,-6.6875 L 215.5625,165.5 c -1.41712,-0.89479 -2.7859,-1.42844 -4.0625,-1.59375 z" style="fill:%23fff;stroke:none" /> </svg> " onerror="this.onerror=null; this.src='/public/hp2013/img/play-button.cb635c5889fb.png'"></a><s..."
The “longdesc” attribute on the “img” element is obsolete. Use a regular “a” element to link to the description.
Line: 102 Column: 775 - 878
"...epfl.ch/"><img alt="MOOCs" longdesc="http://portesouvertes.epfl.ch" src="visual/en/6ee80c-case_moocs_WHmlHWx.jpg"></a></..."
"...epfl.ch/"><img alt="MOOCs" longdesc="http://portesouvertes.epfl.ch" src="visual/en/6ee80c-case_moocs_WHmlHWx.jpg"></a></..."
Warnings
The “banner” role is unnecessary for element “header”.
Line: 1 Column: 1078 - 1174
"...-wrapper"><header id="epfl-header" class="site-header epfl" role="banner" aria-label="Bandeau global EPFL"><div c..."
"...-wrapper"><header id="epfl-header" class="site-header epfl" role="banner" aria-label="Bandeau global EPFL"><div c..."
The “navigation” role is unnecessary for element “nav”.
Line: 1 Column: 1720 - 1901
".../span></a><nav id="epfl-navigation" class="nav visible-s visible-m visible-l visible-xl visible-xxl toggle-hidden" role="navigation" aria-labelledby="epfl-navigation-label" aria-hidden="true"><ul cl..." Line: 1 Column: 4131 - 4183
"...en="true"><nav role="navigation" aria-labelledby="public-link"><h1 cl..." Line: 1 Column: 9047 - 9099
"..."true"><nav role="navigation" aria-labelledby="school-link"><h1 class..." Line: 1 Column: 14067 - 14118
"..."true"><nav role="navigation" aria-labelledby="about-link"><h1 class..." Line: 1 Column: 18377 - 18427
"...eader"><nav class="nav nav-inline lang" role="navigation"><ul class..." Line: 162 Column: 1846 - 1891
"...span-1_1"><nav class="nav nav-inline" role="navigation"><ul cl..."
".../span></a><nav id="epfl-navigation" class="nav visible-s visible-m visible-l visible-xl visible-xxl toggle-hidden" role="navigation" aria-labelledby="epfl-navigation-label" aria-hidden="true"><ul cl..." Line: 1 Column: 4131 - 4183
"...en="true"><nav role="navigation" aria-labelledby="public-link"><h1 cl..." Line: 1 Column: 9047 - 9099
"..."true"><nav role="navigation" aria-labelledby="school-link"><h1 class..." Line: 1 Column: 14067 - 14118
"..."true"><nav role="navigation" aria-labelledby="about-link"><h1 class..." Line: 1 Column: 18377 - 18427
"...eader"><nav class="nav nav-inline lang" role="navigation"><ul class..." Line: 162 Column: 1846 - 1891
"...span-1_1"><nav class="nav nav-inline" role="navigation"><ul cl..."
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Line: 102 Column: 1365 - 1425
"...</section><section class="hp-grid-cell hp-grid-cell--banner hp-banner"><div i..." Line: 102 Column: 3485 - 3563
"...</section><section class="hp-grid-cell hp-grid-cell--scienceOnTourne twitter-widget-box"><a cla..."
"...</section><section class="hp-grid-cell hp-grid-cell--banner hp-banner"><div i..." Line: 102 Column: 3485 - 3563
"...</section><section class="hp-grid-cell hp-grid-cell--scienceOnTourne twitter-widget-box"><a cla..."
The “contentinfo” role is unnecessary for element “footer”.
Line: 162 Column: 1763 - 1821
"...on></main><footer id="footer" class="site-footer" role="contentinfo"><div c..."
"...on></main><footer id="footer" class="site-footer" role="contentinfo"><div c..."
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Line: 1 Column: 14119 - 14145
"...-link"><h1 class="visuallyhidden">Global in..." Line: 1 Column: 9100 - 9126
"...-link"><h1 class="visuallyhidden">Navigatio..." Line: 1 Column: 4184 - 4210
"...lic-link"><h1 class="visuallyhidden">Naviga..."
"...-link"><h1 class="visuallyhidden">Global in..." Line: 1 Column: 9100 - 9126
"...-link"><h1 class="visuallyhidden">Navigatio..." Line: 1 Column: 4184 - 4210
"...lic-link"><h1 class="visuallyhidden">Naviga..."
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epfl.ch 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.
epfl.ch 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.