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URL:
https://gtmetrix.com/reports/hal.science/3M3N4p2B/
Submission: On June 22 via manual (June 22nd 2023, 3:48:20 am UTC) from AT — Scanned from DE

Form analysis
5 forms found in the DOM

POST /pages/hal.science/RQ80mfWk/retest

<form action="/pages/hal.science/RQ80mfWk/retest" method="post" id="retest" class="js-form-report-retest"></form>

POST /analyze.html

<form action="/analyze.html" method="post" class="analyze-form analyze-form-menu js-form-analyze" novalidate="novalidate">
  <input type="hidden" name="source" value="/reports/hal.science/3M3N4p2B/">
  <input type="hidden" name="compare" value="3M3N4p2B">
  <div class="menu-overflow-mask">
    <div class="menu-element-fixed menu-element-fixed-top">
      <h4 class="menu-title">Compare with another URL</h4>
      <a href="#" class="menu-close sprite-extended"></a>
    </div>
    <p class="analyze-form-note">Analyze the following URL and compare it to the current report. <i class="help-tooltip tooltipstered"></i></p>
    <div class="analyze-form-inputs">
      <div class="analyze-form-input"><input type="url" name="url" value="" class="js-analyze-form-url" placeholder="Enter URL to Compare..." maxlength="2048" required="" aria-required="true"></div>
      <div class="analyze-form-button">
      </div>
    </div>
    <div class="analyze-form-guest-options">
      <strong><span class="analyze-form-guest-options-extra">Analysis</span> Options: </strong><span class="analyze-form-guest-options-line"><span class="analyze-form-guest-options-extra analyze-form-guest-options-blur">Testing in </span>Vancouver,
        Canada <span class="analyze-form-guest-options-blur">using</span> Chrome (Desktop)<span class="analyze-form-guest-options-extra"><span class="analyze-form-guest-options-blur"> with an</span> Unthrottled Connection</span></span>. <span
        class="analyze-form-guest-options-link"><a href="#" class="js-auth-widget-link" rel="signup" data-cta-name="Basic Analysis options" data-cta-location="Home - Analysis Options line" data-cta-type="signup"><strong>Change Options</strong></a></span>
    </div>
    <hr>
  </div>
  <div class="form-buttons menu-element-fixed-bottom">
    <button type="submit">Compare</button>
  </div>
</form>

POST /login/

<form action="/login/" method="post" class="js-form-login" novalidate="novalidate">
  <div class="form-row">
    <label for="li-email">E-mail</label>
    <input type="email" name="email" id="li-email" maxlength="255" autocomplete="username">
  </div>
  <div class="form-row">
    <label for="li-password">Password</label>
    <input type="password" name="password" id="li-password" maxlength="255" required="" autocomplete="current-password" aria-required="true">
  </div>
  <div class="menu-site-nav-login-options clear">
    <label><input type="checkbox" name="remember" checked=""> Keep me logged in</label>
    <a href="#" class="js-auth-widget-link" rel="lostpw">I forgot my password</a>
  </div>
  <div class="form-buttons">
    <button type="submit">Log In</button>
  </div>
</form>

POST /signup/

<form action="/signup/" method="post" class="js-form-signup" novalidate="novalidate">
  <div class="form-row form-row-first_name">
    <label for="su-first_name">First Name</label>
    <input type="text" name="first_name" id="su-first_name" maxlength="255" autocomplete="given-name">
  </div>
  <div class="form-row form-row-last_name">
    <label for="su-last_name">Last Name</label>
    <input type="text" name="last_name" id="su-last_name" maxlength="255" autocomplete="family-name">
  </div>
  <div class="form-row hide">
    <label for="su-nickname">Nickname (do not fill out)</label>
    <input type="text" name="nickname" id="su-nickname" disabled="">
  </div>
  <div class="form-row">
    <label for="su-email">E-mail<span class="form-required">*</span></label>
    <input type="email" name="email" id="su-email" maxlength="255" required="" autocomplete="username email" aria-required="true">
  </div>
  <div class="form-row">
    <label for="su-password">Password<span class="form-required">*</span></label>
    <input type="password" name="password" id="su-password" maxlength="255" required="" autocomplete="new-password" aria-required="true">
  </div>
  <div class="form-row">
    <label for="su-password-confirm">Confirm Password<span class="form-required">*</span></label>
    <input type="password" name="password-confirm" id="su-password-confirm" maxlength="255" required="" autocomplete="new-password" data-rule-equalto="#su-password" aria-required="true">
  </div>
  <div class="form-row">
    <label><input type="checkbox" name="accept_terms" value="1" required="" aria-required="true"> I agree to the <a href="/terms-of-service.html" target="_blank">Terms of Service</a> and
      <a href="/privacy-policy.html" target="_blank">Privacy Policy</a></label>
  </div>
  <div class="form-row">
    <label><input type="checkbox" name="email_optin" value="1"> Send me GTmetrix news, tips and offers</label>
  </div>
  <div class="form-buttons">
    <button type="submit">Create an Account</button>
  </div>
</form>

POST /lostpw/

<form action="/lostpw/" method="post" class="js-form-lostpw" novalidate="novalidate">
  <div class="form-row">
    <label for="lp-email">E-mail</label>
    <input type="email" name="email" id="lp-email" maxlength="255" required="" autocomplete="username" aria-required="true">
  </div>
  <div class="form-buttons">
    <button type="submit">Send Password</button>
    <div class="notify notify-success hide">A password reset link has been e-mailed to you.</div>
  </div>
</form>

Text Content

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GTmetrix requires JavaScript to function properly. Please enable JavaScript in
your browser and refresh the page to ensure the best GTmetrix experience.

 * 
 * Features
   
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LATEST PERFORMANCE REPORT FOR:


HTTPS://HAL.SCIENCE/HAL-04132210

Report generated:
Wed, Jun 21, 2023 8:46 PM -0700
Test Server Location:
Vancouver, Canada
Using:
Chrome (Desktop) 103.0.5060.134, Lighthouse 9.6.4
Tags:



GTMETRIX GRADE

PERFORMANCE 

68%

STRUCTURE 

86%


WEB VITALS

LARGEST CONTENTFUL PAINTLCP 

2.8s

TOTAL BLOCKING TIMETBT 

0ms

CUMULATIVE LAYOUT SHIFTCLS 

0
 * Summary
 * Performance
 * Structure
 * Waterfall
 * Video
 * History

Summary


SPEED VISUALIZATION

0.4S

0.7S

1.1S

1.4S

1.8S

2.1S

2.5S

2.9S

3.2S

3.6S

TTFB: 1.5s
Redirect: 0ms
Connect: 656ms
Backend: 798ms
First Contentful Paint: 2.6sOnload Time: 3.2s
Time to Interactive: 2.6sFully Loaded Time: 3.6s
Largest Contentful Paint: 2.8s


TOP ISSUES

These audits are identified as the top issues impacting your performance.

 * All
 * FCP
 * LCP
 * TBT
 * CLS

Impact Audit High Reduce initial server response time FCP LCP Root document took
798ms

Keep the server response time for the main document short because all other
requests depend on it.

Learn how to improve this

URL Time Spent https://hal.science/hal-04132210 798ms

High Eliminate render-blocking resources FCP LCP Potential savings of 1.9s

Resources are blocking the first paint of your page. Consider delivering
critical JS/CSS inline and deferring all non-critical JS/styles.

Learn how to improve this

Resources that may be contributing to render-blocking include:

URL Transfer Size Download Time
https://hal.science/assets/build/main.3ec563c2.css 58.6KB 2.0s
https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css 1.91KB
760ms https://hal.science/assets/css/select2totree.css 1.13KB 852ms
https://hal.science/public/style.ng.css?1674236289 466B 852ms
https://hal.science/assets/js/translations.php?lang=en 7.57KB 1.1s
https://hal.science/assets/build/runtime.763fa2e6.js 1.13KB 852ms
https://hal.science/assets/build/main.33f98276.js 346KB 4.2s
https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js 16.7KB
752ms https://hal.science/assets/js/select2totree.js 2.09KB 288ms
https://hal.science/static/js/tarteaucitron/tarteaucitron.js 11.5KB 570ms
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js 1.10KB
288ms https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB 2.3s

Med Serve static assets with an efficient cache policy Potential savings of
629KB

A long cache lifetime can speed up repeat visits to your page.

Learn how to improve this

URL Cache TTL Transfer Size https://hal.science/assets/build/main.33f98276.js
none 346KB https://hal.science/assets/img/hal-logo-header.png none 90.1KB
https://hal.science/assets/build/main.3ec563c2.css none 58.6KB
https://hal.science/assets/fonts/icomoon.ttf?kizlhj none 42.0KB
https://hal.science/public/mesr.svg none 20.3KB
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023
none 15.0KB https://hal.science/static/js/tarteaucitron/tarteaucitron.js none
11.5KB https://hal.science/assets/js/translations.php?lang=en none 7.57KB
https://hal.science/assets/img/hal-logo-text.png none 6.51KB
https://hal.science/public/inrae.svg none 5.58KB
https://hal.science/public/cnrs.svg none 4.76KB
https://hal.science/public/inria.svg none 4.43KB
https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
none 3.76KB https://hal.science/assets/js/select2totree.js none 2.09KB
https://hal.science/static/js/tarteaucitron/lang/tarteaucitron.en.js?v=20181023
none 1.50KB https://hal.science/assets/img/licences/cc.png none 1.46KB
https://hal.science/assets/img/licences/by.png none 1.45KB
https://hal.science/assets/build/runtime.763fa2e6.js none 1.13KB
https://hal.science/assets/css/select2totree.css none 1.13KB
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js none
1.10KB https://hal.science/public/style.ng.css?1674236289 none 466B
https://static.addtoany.com/menu/page.js 2 days 1.74KB
https://piwik-hal.ccsd.cnrs.fr/matomo.js 7 days 21.3KB
https://static.addtoany.com/menu/svg/icons/twitter.js 90 days 656B
https://static.addtoany.com/menu/svg/icons/gmail.js 90 days 596B
https://static.addtoany.com/menu/svg/icons/linkedin.js 90 days 549B
https://static.addtoany.com/menu/svg/icons/facebook.js 90 days 483B
https://static.addtoany.com/menu/svg/icons/a2a.js 90 days 398B

Med-Low Use HTTP/2 for all resources Potential savings of 3.0s

HTTP/2 offers many benefits over HTTP/1.1, including binary headers and
multiplexing.

Learn how to improve this

URL Protocol https://hal.science/hal-04132210 http/1.1
https://hal.science/assets/build/main.3ec563c2.css http/1.1
https://hal.science/assets/css/select2totree.css http/1.1
https://hal.science/public/style.ng.css?1674236289 http/1.1
https://hal.science/assets/js/translations.php?lang=en http/1.1
https://hal.science/assets/build/runtime.763fa2e6.js http/1.1
https://hal.science/assets/build/main.33f98276.js http/1.1
https://hal.science/assets/js/select2totree.js http/1.1
https://hal.science/static/js/tarteaucitron/tarteaucitron.js http/1.1
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js
http/1.1 https://hal.science/assets/img/hal-logo-header.png http/1.1
https://hal.science/assets/img/hal-logo-text.png http/1.1
https://hal.science/assets/img/licences/cc.png http/1.1
https://hal.science/assets/img/licences/by.png http/1.1
https://hal.science/public/mesr.svg http/1.1 https://hal.science/public/cnrs.svg
http/1.1 https://hal.science/public/inria.svg http/1.1
https://hal.science/public/inrae.svg http/1.1
https://hal.science/assets/fonts/icomoon.ttf?kizlhj http/1.1
https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
http/1.1
https://hal.science/static/js/tarteaucitron/lang/tarteaucitron.en.js?v=20181023
http/1.1 https://hal.science/assets/site.webmanifest http/1.1
https://hal.science/assets/favicon/favicon-32x32.png http/1.1
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023
http/1.1

Med-Low Use a Content Delivery Network (CDN) 21 resources found

CDNs can give an equally fast web experience to your users across the globe.

Learn how to improve this

URL https://hal.science/assets/build/main.3ec563c2.css
https://hal.science/assets/css/select2totree.css
https://hal.science/public/style.ng.css?1674236289
https://hal.science/assets/js/translations.php?lang=en
https://hal.science/assets/build/runtime.763fa2e6.js
https://hal.science/assets/build/main.33f98276.js
https://hal.science/assets/js/select2totree.js
https://hal.science/static/js/tarteaucitron/tarteaucitron.js
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js
https://hal.science/assets/img/hal-logo-header.png
https://hal.science/assets/img/hal-logo-text.png
https://hal.science/assets/img/licences/cc.png
https://hal.science/assets/img/licences/by.png
https://hal.science/public/mesr.svg https://hal.science/public/cnrs.svg
https://hal.science/public/inria.svg https://hal.science/public/inrae.svg
https://piwik-hal.ccsd.cnrs.fr/matomo.js
https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
https://hal.science/static/js/tarteaucitron/lang/tarteaucitron.en.js?v=20181023
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023

Med-Low Avoid chaining critical requests FCP LCP 14 chains found

The Critical Request Chains below show you what resources are loaded with a high
priority. Consider reducing the length of chains, reducing the download size of
resources, or deferring the download of unnecessary resources to improve page
load.

Learn how to improve this

Maximum critical path latency: 3.3s

Initial Navigation

 * https://hal.science/hal-04132210 13.7KB, 1.5s
   
   * https://hal.science/public/style.ng.css?1674236289 466B, 138ms
   
   * https://hal.science/assets/js/select2totree.js 2.09KB, 407ms
   
   * https://hal.science/assets/css/select2totree.css 1.13KB, 140ms
   
   * https://hal.science/assets/js/translations.php?lang=en 7.57KB, 279ms
   
   * https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css
     1.91KB, 29ms
   
   * https://hal.science/assets/build/runtime.763fa2e6.js 1.13KB, 276ms
   
   * https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB, 46ms
   
   * https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js
     16.7KB, 28ms
   
   * https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js
     1.10KB, 417ms
   
   * https://hal.science/assets/build/main.33f98276.js 346KB, 957ms
   
   * https://hal.science/static/js/tarteaucitron/tarteaucitron.js 11.5KB, 542ms
     
     * https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
       3.76KB, 140ms
   
   * https://hal.science/assets/build/main.3ec563c2.css 58.6KB, 291ms
     
     * https://hal.science/assets/fonts/icomoon.ttf?kizlhj 42.0KB, 269ms
     
     * https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;700&display=swap
       1.13KB, 43ms
       
       * https://fonts.gstatic.com/s/notosans/v28/o-0IIpQlx3QUlC5A4PNr5TRA.woff2
         14.4KB, 7ms
       
       * https://fonts.gstatic.com/s/notosans/v28/o-0NIpQlx3QUlC5A4PNjXhFVZNyB.woff2
         13.9KB, 12ms

Low Reduce unused JavaScript LCP Potential savings of 358KB

Reduce unused JavaScript and defer loading scripts until they are required to
decrease bytes consumed by network activity.

Learn how to improve this

URL Transfer Size Potential Savings
https://hal.science/assets/build/main.33f98276.js 346KB 267KB
https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB 57.8KB
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js?V=2.7.5
59.4KB 32.9KB

Low Properly size images Potential savings of 95.3KB

Serve images that are appropriately-sized to save cellular data and improve load
time.

Learn how to improve this

URL Resource Size Potential Savings
https://hal.science/assets/img/hal-logo-header.png 89.7KB 89.3KB
https://hal.science/assets/img/hal-logo-text.png 6.20KB 6.05KB

Low Avoid an excessive DOM size TBT 801 elements

A large DOM will increase memory usage, cause longer style calculations, and
produce costly layout reflows.

Learn how to improve this

Statistic Element Value Total DOM Elements 801 Maximum DOM Depth
Titles
<a data-val="title_t" href="javascript:void(0);" onclick="LangInit(this,
'qa');"> 14 Maximum Child Elements
Default search field (multi-criteria)Journals (multi-criteria)Journal: Publishe…
<ul class="dropdown-menu" role="menu" style="max-height: 140px; overflow:auto;">
80

Low Serve images in next-gen formats Potential savings of 73.4KB

Image formats like WebP and AVIF often provide better compression than PNG or
JPEG, which means faster downloads and less data consumption.

Learn how to improve this

URL Resource Size Potential Savings
https://hal.science/assets/img/hal-logo-header.png 89.7KB 73.4KB

Low Avoid enormous network payloads LCP Total size was 886KB

Large network payloads cost users real money and are highly correlated with long
load times.

Learn how to improve this

URL Transfer Size https://hal.science/assets/build/main.33f98276.js 346KB
https://hal.science/assets/img/hal-logo-header.png 90.1KB
https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js?V=2.7.5
59.4KB https://hal.science/assets/build/main.3ec563c2.css 58.6KB
https://hal.science/assets/fonts/icomoon.ttf?kizlhj 42.0KB
https://static.addtoany.com/menu/modules/core.4d495e6a.js 25.1KB
https://piwik-hal.ccsd.cnrs.fr/matomo.js 21.3KB
https://hal.science/public/mesr.svg 20.3KB
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML
17.0KB

Low Avoid long main-thread tasks TBT 1 long task found

Lists the longest tasks on the main thread, useful for identifying worst
contributors to input delay.

Learn how to improve this

URL Start Time Duration https://hal.science/assets/build/main.33f98276.js 2.5s
106ms

Low Reduce JavaScript execution time TBT 191ms spent executing JavaScript

Consider reducing the time spent parsing, compiling, and executing JS. You may
find delivering smaller JS payloads helps with this.

Learn how to improve this

URL Total CPU Time Script Evaluation Script Parse
https://hal.science/assets/build/main.33f98276.js 175ms 145ms 17ms
https://hal.science/hal-04132210 127ms 2ms 1ms Unattributable 116ms 24ms 0ms

Low Reduce unused CSS FCP LCP Potential savings of 55.4KB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold
content to decrease bytes consumed by network activity.

Learn how to improve this

URL Transfer Size Potential Savings
https://hal.science/assets/build/main.3ec563c2.css 58.6KB 55.4KB

Low Avoid serving legacy JavaScript to modern browsers TBT Potential savings of
53B

Polyfills and transforms enable legacy browsers to use new JavaScript features.
However, many aren't necessary for modern browsers. For your bundled JavaScript,
adopt a modern script deployment strategy using module/nomodule feature
detection to reduce the amount of code shipped to modern browsers, while
retaining support for legacy browsers.

Learn how to improve this

URL Potential Savings https://hal.science/assets/build/main.33f98276.js 53B
Line:1 Column:603208 @babel/plugin-transform-classes

Low Minify JavaScript FCP LCP Potential savings of 8.88KB

Minifying JavaScript files can reduce payload sizes and script parse time.

Learn how to improve this

URL Transfer Size Potential Savings
https://hal.science/static/js/tarteaucitron/tarteaucitron.js 11.5KB 4.52KB
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023
15.0KB 4.35KB

No impactful audits found - Great job! No other impactful audits found


FOCUS ON THESE AUDITS FIRST

These audits likely have the largest impact on your page performance.

Structure audits do not directly affect your Performance Score, but improving
the audits seen here can help as a starting point for overall performance gains.

See all Structure audits

--------------------------------------------------------------------------------


PAGE DETAILS

Your page content is broken down into the following:

3.6S

Fully Loaded Time

TOTAL PAGE SIZE - 886KB

JS
596KB
IMG
135KB
Font
70.3KB
CSS
67.0KB
HTML
14.4KB
Other
3.88KB

TOTAL PAGE REQUESTS - 43

JS
46.5%
IMG
18.6%
CSS
14.0%
Other
9.3%
Font
7.0%
HTML
4.7%
HTML
JS
CSS
IMG
Video
Font
Other


MORE FROM GTMETRIX

Additional tips and suggestions based on your page analysis.

NEED HELP WITH OPTIMIZATION?

Find a developer with our partner Fiverr to optimize your performance

THIRD-PARTY REQUESTS ARE AFFECTING YOUR PERFORMANCE

Learn why and potential solutions

UNDERSTAND AND ASSESS WATERFALL CHARTS

Learn to identify and point out potential issues in your page load

ACCESS ANALYSIS OPTIONS WITH A GTMETRIX ACCOUNT

Block ads, capture video, change connection speeds, etc

Read our blog for more performance tips and advice.

Performance


PERFORMANCE METRICS

The following metrics are generated using Lighthouse Performance data.

Metric details

FIRST CONTENTFUL PAINT

How quickly content like text or images are painted onto your page.

A good user experience is 0.9s or less. Learn more.

Much longer than recommended
2.6s

TIME TO INTERACTIVE

How long it takes for your page to become fully interactive.

A good user experience is 2.5s or less. Learn more.

OK, but consider improvement
2.6s

SPEED INDEX

How quickly the contents of your page are visibly populated.

A good user experience is 1.3s or less. Learn more.

Much longer than recommended
2.7s

TOTAL BLOCKING TIME

How much time is blocked by scripts during your page loading process.

A good user experience is 150ms or less. Learn more.

Good - Nothing to do here
0ms

LARGEST CONTENTFUL PAINT

How long it takes for the largest element of content (e.g. a hero image) to be
painted on your page.

A good user experience is 1.2s or less. Learn more.

Much longer than recommended
2.8s

CUMULATIVE LAYOUT SHIFT

How much your page's layout shifts as it loads.

A good user experience is a score of 0.1 or less. Learn more.

Good - Nothing to do here
0

--------------------------------------------------------------------------------


BROWSER TIMINGS

These timings are milestones reported by the browser.

REDIRECT DURATION

0ms

CONNECTION DURATION

656ms

BACKEND DURATION

798ms

TIME TO FIRST BYTE (TTFB)

1.5s

FIRST PAINT

2.6s

DOM INTERACTIVE TIME

2.6s

DOM CONTENT LOADED TIME

2.6s

ONLOAD TIME

3.2s

FULLY LOADED TIME

3.6s
Structure
Show Audits Relevant to  
 * All
 * FCP
 * LCP
 * TBT
 * CLS

Impact Audit High Reduce initial server response time FCP LCP Root document took
798ms

Keep the server response time for the main document short because all other
requests depend on it.

Learn how to improve this

URL Time Spent https://hal.science/hal-04132210 798ms

High Eliminate render-blocking resources FCP LCP Potential savings of 1.9s

Resources are blocking the first paint of your page. Consider delivering
critical JS/CSS inline and deferring all non-critical JS/styles.

Learn how to improve this

Resources that may be contributing to render-blocking include:

URL Transfer Size Download Time
https://hal.science/assets/build/main.3ec563c2.css 58.6KB 2.0s
https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css 1.91KB
760ms https://hal.science/assets/css/select2totree.css 1.13KB 852ms
https://hal.science/public/style.ng.css?1674236289 466B 852ms
https://hal.science/assets/js/translations.php?lang=en 7.57KB 1.1s
https://hal.science/assets/build/runtime.763fa2e6.js 1.13KB 852ms
https://hal.science/assets/build/main.33f98276.js 346KB 4.2s
https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js 16.7KB
752ms https://hal.science/assets/js/select2totree.js 2.09KB 288ms
https://hal.science/static/js/tarteaucitron/tarteaucitron.js 11.5KB 570ms
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js 1.10KB
288ms https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB 2.3s

Med Serve static assets with an efficient cache policy Potential savings of
629KB

A long cache lifetime can speed up repeat visits to your page.

Learn how to improve this

URL Cache TTL Transfer Size https://hal.science/assets/build/main.33f98276.js
none 346KB https://hal.science/assets/img/hal-logo-header.png none 90.1KB
https://hal.science/assets/build/main.3ec563c2.css none 58.6KB
https://hal.science/assets/fonts/icomoon.ttf?kizlhj none 42.0KB
https://hal.science/public/mesr.svg none 20.3KB
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023
none 15.0KB https://hal.science/static/js/tarteaucitron/tarteaucitron.js none
11.5KB https://hal.science/assets/js/translations.php?lang=en none 7.57KB
https://hal.science/assets/img/hal-logo-text.png none 6.51KB
https://hal.science/public/inrae.svg none 5.58KB
https://hal.science/public/cnrs.svg none 4.76KB
https://hal.science/public/inria.svg none 4.43KB
https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
none 3.76KB https://hal.science/assets/js/select2totree.js none 2.09KB
https://hal.science/static/js/tarteaucitron/lang/tarteaucitron.en.js?v=20181023
none 1.50KB https://hal.science/assets/img/licences/cc.png none 1.46KB
https://hal.science/assets/img/licences/by.png none 1.45KB
https://hal.science/assets/build/runtime.763fa2e6.js none 1.13KB
https://hal.science/assets/css/select2totree.css none 1.13KB
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js none
1.10KB https://hal.science/public/style.ng.css?1674236289 none 466B
https://static.addtoany.com/menu/page.js 2 days 1.74KB
https://piwik-hal.ccsd.cnrs.fr/matomo.js 7 days 21.3KB
https://static.addtoany.com/menu/svg/icons/twitter.js 90 days 656B
https://static.addtoany.com/menu/svg/icons/gmail.js 90 days 596B
https://static.addtoany.com/menu/svg/icons/linkedin.js 90 days 549B
https://static.addtoany.com/menu/svg/icons/facebook.js 90 days 483B
https://static.addtoany.com/menu/svg/icons/a2a.js 90 days 398B

Med-Low Use HTTP/2 for all resources Potential savings of 3.0s

HTTP/2 offers many benefits over HTTP/1.1, including binary headers and
multiplexing.

Learn how to improve this

URL Protocol https://hal.science/hal-04132210 http/1.1
https://hal.science/assets/build/main.3ec563c2.css http/1.1
https://hal.science/assets/css/select2totree.css http/1.1
https://hal.science/public/style.ng.css?1674236289 http/1.1
https://hal.science/assets/js/translations.php?lang=en http/1.1
https://hal.science/assets/build/runtime.763fa2e6.js http/1.1
https://hal.science/assets/build/main.33f98276.js http/1.1
https://hal.science/assets/js/select2totree.js http/1.1
https://hal.science/static/js/tarteaucitron/tarteaucitron.js http/1.1
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js
http/1.1 https://hal.science/assets/img/hal-logo-header.png http/1.1
https://hal.science/assets/img/hal-logo-text.png http/1.1
https://hal.science/assets/img/licences/cc.png http/1.1
https://hal.science/assets/img/licences/by.png http/1.1
https://hal.science/public/mesr.svg http/1.1 https://hal.science/public/cnrs.svg
http/1.1 https://hal.science/public/inria.svg http/1.1
https://hal.science/public/inrae.svg http/1.1
https://hal.science/assets/fonts/icomoon.ttf?kizlhj http/1.1
https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
http/1.1
https://hal.science/static/js/tarteaucitron/lang/tarteaucitron.en.js?v=20181023
http/1.1 https://hal.science/assets/site.webmanifest http/1.1
https://hal.science/assets/favicon/favicon-32x32.png http/1.1
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023
http/1.1

Med-Low Use a Content Delivery Network (CDN) 21 resources found

CDNs can give an equally fast web experience to your users across the globe.

Learn how to improve this

URL https://hal.science/assets/build/main.3ec563c2.css
https://hal.science/assets/css/select2totree.css
https://hal.science/public/style.ng.css?1674236289
https://hal.science/assets/js/translations.php?lang=en
https://hal.science/assets/build/runtime.763fa2e6.js
https://hal.science/assets/build/main.33f98276.js
https://hal.science/assets/js/select2totree.js
https://hal.science/static/js/tarteaucitron/tarteaucitron.js
https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js
https://hal.science/assets/img/hal-logo-header.png
https://hal.science/assets/img/hal-logo-text.png
https://hal.science/assets/img/licences/cc.png
https://hal.science/assets/img/licences/by.png
https://hal.science/public/mesr.svg https://hal.science/public/cnrs.svg
https://hal.science/public/inria.svg https://hal.science/public/inrae.svg
https://piwik-hal.ccsd.cnrs.fr/matomo.js
https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
https://hal.science/static/js/tarteaucitron/lang/tarteaucitron.en.js?v=20181023
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023

Med-Low Avoid chaining critical requests FCP LCP 14 chains found

The Critical Request Chains below show you what resources are loaded with a high
priority. Consider reducing the length of chains, reducing the download size of
resources, or deferring the download of unnecessary resources to improve page
load.

Learn how to improve this

Maximum critical path latency: 3.3s

Initial Navigation

 * https://hal.science/hal-04132210 13.7KB, 1.5s
   
   * https://hal.science/public/style.ng.css?1674236289 466B, 138ms
   
   * https://hal.science/assets/js/select2totree.js 2.09KB, 407ms
   
   * https://hal.science/assets/css/select2totree.css 1.13KB, 140ms
   
   * https://hal.science/assets/js/translations.php?lang=en 7.57KB, 279ms
   
   * https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css
     1.91KB, 29ms
   
   * https://hal.science/assets/build/runtime.763fa2e6.js 1.13KB, 276ms
   
   * https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB, 46ms
   
   * https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js
     16.7KB, 28ms
   
   * https://hal.science/static/js/tarteaucitron/tarteaucitron.servicesHAL.js
     1.10KB, 417ms
   
   * https://hal.science/assets/build/main.33f98276.js 346KB, 957ms
   
   * https://hal.science/static/js/tarteaucitron/tarteaucitron.js 11.5KB, 542ms
     
     * https://hal.science/static/js/tarteaucitron/css/tarteaucitron.css?v=20181023
       3.76KB, 140ms
   
   * https://hal.science/assets/build/main.3ec563c2.css 58.6KB, 291ms
     
     * https://hal.science/assets/fonts/icomoon.ttf?kizlhj 42.0KB, 269ms
     
     * https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;700&display=swap
       1.13KB, 43ms
       
       * https://fonts.gstatic.com/s/notosans/v28/o-0IIpQlx3QUlC5A4PNr5TRA.woff2
         14.4KB, 7ms
       
       * https://fonts.gstatic.com/s/notosans/v28/o-0NIpQlx3QUlC5A4PNjXhFVZNyB.woff2
         13.9KB, 12ms

Low Reduce unused JavaScript LCP Potential savings of 358KB

Reduce unused JavaScript and defer loading scripts until they are required to
decrease bytes consumed by network activity.

Learn how to improve this

URL Transfer Size Potential Savings
https://hal.science/assets/build/main.33f98276.js 346KB 267KB
https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB 57.8KB
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js?V=2.7.5
59.4KB 32.9KB

Low Properly size images Potential savings of 95.3KB

Serve images that are appropriately-sized to save cellular data and improve load
time.

Learn how to improve this

URL Resource Size Potential Savings
https://hal.science/assets/img/hal-logo-header.png 89.7KB 89.3KB
https://hal.science/assets/img/hal-logo-text.png 6.20KB 6.05KB

Low Avoid an excessive DOM size TBT 801 elements

A large DOM will increase memory usage, cause longer style calculations, and
produce costly layout reflows.

Learn how to improve this

Statistic Element Value Total DOM Elements 801 Maximum DOM Depth
Titles
<a data-val="title_t" href="javascript:void(0);" onclick="LangInit(this,
'qa');"> 14 Maximum Child Elements
Default search field (multi-criteria)Journals (multi-criteria)Journal: Publishe…
<ul class="dropdown-menu" role="menu" style="max-height: 140px; overflow:auto;">
80

Low Serve images in next-gen formats Potential savings of 73.4KB

Image formats like WebP and AVIF often provide better compression than PNG or
JPEG, which means faster downloads and less data consumption.

Learn how to improve this

URL Resource Size Potential Savings
https://hal.science/assets/img/hal-logo-header.png 89.7KB 73.4KB

Low Avoid enormous network payloads LCP Total size was 886KB

Large network payloads cost users real money and are highly correlated with long
load times.

Learn how to improve this

URL Transfer Size https://hal.science/assets/build/main.33f98276.js 346KB
https://hal.science/assets/img/hal-logo-header.png 90.1KB
https://code.jquery.com/ui/1.12.1/jquery-ui.min.js 66.4KB
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js?V=2.7.5
59.4KB https://hal.science/assets/build/main.3ec563c2.css 58.6KB
https://hal.science/assets/fonts/icomoon.ttf?kizlhj 42.0KB
https://static.addtoany.com/menu/modules/core.4d495e6a.js 25.1KB
https://piwik-hal.ccsd.cnrs.fr/matomo.js 21.3KB
https://hal.science/public/mesr.svg 20.3KB
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML
17.0KB

Low Avoid long main-thread tasks TBT 1 long task found

Lists the longest tasks on the main thread, useful for identifying worst
contributors to input delay.

Learn how to improve this

URL Start Time Duration https://hal.science/assets/build/main.33f98276.js 2.5s
106ms

Low Reduce JavaScript execution time TBT 191ms spent executing JavaScript

Consider reducing the time spent parsing, compiling, and executing JS. You may
find delivering smaller JS payloads helps with this.

Learn how to improve this

URL Total CPU Time Script Evaluation Script Parse
https://hal.science/assets/build/main.33f98276.js 175ms 145ms 17ms
https://hal.science/hal-04132210 127ms 2ms 1ms Unattributable 116ms 24ms 0ms

Low Reduce unused CSS FCP LCP Potential savings of 55.4KB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold
content to decrease bytes consumed by network activity.

Learn how to improve this

URL Transfer Size Potential Savings
https://hal.science/assets/build/main.3ec563c2.css 58.6KB 55.4KB

Low Avoid serving legacy JavaScript to modern browsers TBT Potential savings of
53B

Polyfills and transforms enable legacy browsers to use new JavaScript features.
However, many aren't necessary for modern browsers. For your bundled JavaScript,
adopt a modern script deployment strategy using module/nomodule feature
detection to reduce the amount of code shipped to modern browsers, while
retaining support for legacy browsers.

Learn how to improve this

URL Potential Savings https://hal.science/assets/build/main.33f98276.js 53B
Line:1 Column:603208 @babel/plugin-transform-classes

Low Minify JavaScript FCP LCP Potential savings of 8.88KB

Minifying JavaScript files can reduce payload sizes and script parse time.

Learn how to improve this

URL Transfer Size Potential Savings
https://hal.science/static/js/tarteaucitron/tarteaucitron.js 11.5KB 4.52KB
https://hal.science/static/js/tarteaucitron/tarteaucitron.services.js?v=20181023
15.0KB 4.35KB

N/A Largest Contentful Paint element LCP 1 element found

This is the largest contentful element painted within the viewport.

Element
In recent years, neural-inspired architectures have gained significant populari…
<div class="abstract-content active" lang="en">

N/A Avoid large layout shifts CLS 5 elements found

These DOM elements contribute most to the CLS of the page.

Learn how to improve this

Element CLS Contribution
Documentation EN Sign in
<div class="collapse navbar-collapse" style="height: 60px" id="nav-services">
0.00
HAL open science Search Upload
<ul class="nav navbar-nav" id="second-navbar"> 0.00
Jorge Martinez-Gil. Exploring the Applicability of Fuzzy Logic in Multiple Choi…
<div class="bg-beige p-2" id="citation"> 0.00
Documentation EN Sign in
<ul class="nav navbar-nav ml-auto" style="height: inherit; align-items:
center;"> 0.00
Export BibTeX TEI Dublin Core DC Terms EndNote Datacite
<div class="section-content section-shadow section-export"> 0.00

N/A Minimize main-thread work TBT Main-thread busy for 540ms

Consider reducing the time spent parsing, compiling and executing JS. You may
find delivering smaller JS payloads helps with this.

Learn how to improve this

Category Time Spent Script Evaluation 256ms Other 127ms Style & Layout 94ms
Script Parsing & Compilation 31ms Parse HTML & CSS 21ms Rendering 9ms

N/A Reduce the impact of third-party code TBT Total size was 221KB

Third-party code can significantly impact load performance. Limit the number of
redundant third-party providers and try to load third-party code after your page
has primarily finished loading.

Learn how to improve this

Third-Party Transfer Size Main-Thread Blocking Time Cloudflare CDN 95.1KB 0ms
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js?V=2.7.5
59.4KB 0ms
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML
17.0KB 0ms
https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js 16.7KB
0ms jQuery CDN 66.4KB 0ms https://code.jquery.com/ui/1.12.1/jquery-ui.min.js
66.4KB 0ms AddToAny 30.1KB 0ms
https://static.addtoany.com/menu/modules/core.4d495e6a.js 25.1KB 0ms Other
resources 5.01KB 0ms Google Fonts 29.5KB 0ms
https://fonts.gstatic.com/s/notosans/v28/o-0IIpQlx3QUlC5A4PNr5TRA.woff2 14.4KB
0ms https://fonts.gstatic.com/s/notosans/v28/o-0NIpQlx3QUlC5A4PNjXhFVZNyB.woff2
13.9KB 0ms

N/A User Timing marks and measures

No user timings and/or marks found.

Learn more
Show No Impact Audits  None Avoid CSS @import FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Enable text compression FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Use a <meta name="viewport"> tag with width or initial-scale TBT

Nothing to do here, good job!

Learn how to improve this
None Use video formats for animated content LCP

Nothing to do here, good job!

Learn how to improve this
None Use passive listeners to improve scrolling performance

Nothing to do here, good job!

Learn how to improve this
None Don't lazy load Largest Contentful Paint image LCP was lazy loaded

Nothing to do here, good job!

Learn how to improve this
None Avoid multiple page redirects FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Efficiently encode images

Nothing to do here, good job!

Learn how to improve this
None Ensure text remains visible during webfont load FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Preconnect to required origins FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Avoid document.write()

Nothing to do here, good job!

Learn how to improve this
None Preload Largest Contentful Paint image LCP

Nothing to do here, good job!

Learn how to improve this
None Defer offscreen images

Nothing to do here, good job!

Learn how to improve this
None Minify CSS FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Avoid non-composited animations CLS

Nothing to do here, good job!

Learn how to improve this
None Enable Keep-Alive FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Avoid unload event listeners

Nothing to do here, good job!

Learn how to improve this
None Remove duplicate modules in JavaScript bundles TBT

Nothing to do here, good job!

Learn how to improve this
None Combine images using CSS sprites FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Preload key requests FCP LCP

Nothing to do here, good job!

Learn how to improve this
None Lazy load third-party resources with facades TBT

Nothing to do here, good job!

Learn how to improve this


WHAT DO THESE AUDITS MEAN?

These audits are best practices established by Google to help build websites for
optimal front-end performance.

Each audit is assessed based on your adherence to them and ordered by the most
likely impact to your page's performance.

Note that Structure audits do not directly affect your Performance score,
however addressing them can serve as good starting point to improve page load
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one audit may affect others.

Learn about all the audits


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Waterfall


WATERFALL CHART

Fullscreen Download HAR

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Video


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gtmetrix.com Open in urlscan Pro 2606:4700::6812:58d Public Scan

Form analysis 5 forms found in the DOM

POST /pages/hal.science/RQ80mfWk/retest

POST /analyze.html

POST /login/

POST /signup/

POST /lostpw/

Text Content

gtmetrix.com Open in urlscan Pro
2606:4700::6812:58d Public Scan

Form analysis
5 forms found in the DOM