Tools & Wizards About Us
21.edu.ar screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    60% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 85

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

21.edu.ar

Universidad Siglo 21 | Siglo 21

Page Load Speed

11.4 sec in total

First Response

339 ms

Resources Loaded

10.8 sec

Page Rendered

313 ms

21.edu.ar screenshot

About Website

Welcome to 21.edu.ar homepage info - get ready to check 21 best content for Argentina right away, or after learning these important things about 21.edu.ar

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Visit 21.edu.ar

Key Findings

We analyzed 21.edu.ar page load time and found that the first response time was 339 ms and then it took 11.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

21.edu.ar performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

64/100

25%

SI (Speed Index)

Value8.0 s

23/100

10%

TBT (Total Blocking Time)

Value5,480 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value19.5 s

3/100

10%

Network Requests Diagram

21.edu.ar

339 ms

www.21.edu.ar

1090 ms

home.css

1061 ms

main.css

342 ms

jquery-ui.css

344 ms

Our browser made a total of 181 requests to load all elements on the main page. We found that 84% of them (152 requests) were addressed to the original 21.edu.ar, 2% (4 requests) were made to Google-analytics.com and 2% (4 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain 21.edu.ar.

Page Optimization Overview & Recommendations

Page size can be reduced by 757.2 kB (39%)

Content Size

1.9 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 21.edu.ar main page is 1.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Images take 889.8 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 87.0 kB

  • Original 110.2 kB
  • After minification 96.6 kB
  • After compression 23.2 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 13.7 kB, which is 12% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 87.0 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 38.3 kB

  • Original 889.8 kB
  • After minification 851.4 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. 21 images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 378.1 kB

  • Original 613.9 kB
  • After minification 607.7 kB
  • After compression 235.8 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 378.1 kB or 62% of the original size.

CSS Optimization

-82%

Potential reduce by 253.8 kB

  • Original 308.6 kB
  • After minification 301.7 kB
  • After compression 54.8 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. 21.edu.ar needs all CSS files to be minified and compressed as it can save up to 253.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 72 (41%)

Requests Now

175

After Optimization

103

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 175 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

21.edu.ar

21.edu.ar

339 ms

www.21.edu.ar

www.21.edu.ar

1090 ms

home.css

home.css

1061 ms

main.css

main.css

342 ms

jquery-ui.css

jquery-ui.css

344 ms

rs.css

rs.css

345 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

347 ms

accordions.css

accordions.css

501 ms

styles.css

styles.css

1215 ms

megamenu.css

megamenu.css

513 ms

default.css

default.css

514 ms

nivo-slider.css

nivo-slider.css

520 ms

estilo_theme.css

estilo_theme.css

669 ms

jquery.min.js

jquery.min.js

1242 ms

jquery-ui-1.10.3.custom.min.js

jquery-ui-1.10.3.custom.min.js

1066 ms

jquery.flow.1.2.min.js

jquery.flow.1.2.min.js

689 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

836 ms

swfobject.js

swfobject.js

866 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

1011 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

1039 ms

fancy_call.js

fancy_call.js

1182 ms

accordion.js

accordion.js

1213 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

1221 ms

jquery.hasEventListener-1.0.5.min.js

jquery.hasEventListener-1.0.5.min.js

1263 ms

jquery.fancydropdown.js

jquery.fancydropdown.js

1352 ms

megamenu.js

megamenu.js

1375 ms

conversion.js

conversion.js

17 ms

logo_20_anos.png

logo_20_anos.png

1557 ms

btn_lupa-trans.png

btn_lupa-trans.png

1401 ms

btn_rollover_nueva.png

btn_rollover_nueva.png

1286 ms

logo_rollover_posgrados_01.png

logo_rollover_posgrados_01.png

1434 ms

logo_rollover_posgrados_02.png

logo_rollover_posgrados_02.png

1375 ms

logo_rollover_posgrados_08.png

logo_rollover_posgrados_08.png

1401 ms

logo_rollover_posgrados_04.png

logo_rollover_posgrados_04.png

1417 ms

img_mini_modalidad_distribuida.jpg

img_mini_modalidad_distribuida.jpg

1440 ms

img_mini_modalidad_distancia.jpg

img_mini_modalidad_distancia.jpg

1545 ms

img_mini_modalidad_virtual_posgrados.jpg

img_mini_modalidad_virtual_posgrados.jpg

1569 ms

img_mini_modalidad_presencial.jpg

img_mini_modalidad_presencial.jpg

2042 ms

box_solicitar_info.js

box_solicitar_info.js

1420 ms

twitter-text.js

twitter-text.js

1432 ms

home.js

home.js

1435 ms

main.js

main.js

1535 ms

s_code.js

s_code.js

1785 ms

img_mini_modalidad_senior.jpg

img_mini_modalidad_senior.jpg

1423 ms

img_modalidad_novedad_cloud.png

img_modalidad_novedad_cloud.png

1426 ms

img_modalidad_novedad_rosetta_stone.png

img_modalidad_novedad_rosetta_stone.png

1432 ms

imagen.php

imagen.php

2368 ms

img_mapa_menu_sedes.jpg

img_mapa_menu_sedes.jpg

1636 ms

img_mini_sede_nva_cba.jpg

img_mini_sede_nva_cba.jpg

1439 ms

img_mini_sede_campus.jpg

img_mini_sede_campus.jpg

1293 ms

img_mini_sede_rio_iv.jpg

img_mini_sede_rio_iv.jpg

1372 ms

img_mini_sede_ba_as.jpg

img_mini_sede_ba_as.jpg

1276 ms

btn_facebbok.png

btn_facebbok.png

1253 ms

btn_twitter.png

btn_twitter.png

1324 ms

btn_youtube.png

btn_youtube.png

1350 ms

btn_linkedin.png

btn_linkedin.png

1279 ms

btn_googleplus.png

btn_googleplus.png

1261 ms

btn_instagram.png

btn_instagram.png

1260 ms

btn_pinterest.png

btn_pinterest.png

1326 ms

btn_skype.png

btn_skype.png

1322 ms

btn_radio.png

btn_radio.png

1371 ms

btn_blog_wp.png

btn_blog_wp.png

1290 ms

btn_folleto_digital.png

btn_folleto_digital.png

1262 ms

ga.js

ga.js

50 ms

analytics.js

analytics.js

74 ms

fbevents.js

fbevents.js

138 ms

68 ms

galeria-rollover-universidad.inc.php

galeria-rollover-universidad.inc.php

1296 ms

btn_epic.png

btn_epic.png

1318 ms

__utm.gif

__utm.gif

17 ms

47 ms

collect

collect

52 ms

collect

collect

17 ms

banner_tu_mundo.jpg

banner_tu_mundo.jpg

1636 ms

31 ms

31 ms

banner_nuevas_carreras_2016a.jpg

banner_nuevas_carreras_2016a.jpg

1486 ms

banner_home_equivalencias_c.jpg

banner_home_equivalencias_c.jpg

1609 ms

banner_charlas_informativas_feb2016.jpg

banner_charlas_informativas_feb2016.jpg

2730 ms

banner_edn2016_01.jpg

banner_edn2016_01.jpg

1854 ms

banner_asesor_virtual_b.jpg

banner_asesor_virtual_b.jpg

2155 ms

btn_enviar_new.png

btn_enviar_new.png

1517 ms

preload-form.gif

preload-form.gif

1615 ms

youtube_icon.gif

youtube_icon.gif

1592 ms

thumb_video_tu_mundo.jpg

thumb_video_tu_mundo.jpg

2015 ms

feed

feed

416 ms

thumb_manifiesto_ilumno.jpg

thumb_manifiesto_ilumno.jpg

1740 ms

jp5YvOGvWGk

jp5YvOGvWGk

101 ms

munchkin.js

munchkin.js

7 ms

4 ms

17 ms

thumb_video-cumpli_sueno_estudiar.jpg

thumb_video-cumpli_sueno_estudiar.jpg

1647 ms

munchkin.js

munchkin.js

4 ms

visitWebPage

visitWebPage

236 ms

22 ms

www-embed-player-vflZsBgOl.css

www-embed-player-vflZsBgOl.css

64 ms

www-embed-player.js

www-embed-player.js

85 ms

base.js

base.js

126 ms

imagen.php

imagen.php

1926 ms

btn_buscador_carreras.png

btn_buscador_carreras.png

1755 ms

box_360_home.png

box_360_home.png

2438 ms

6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js

6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js

13 ms

ad_status.js

ad_status.js

82 ms

img-id21-2016-01.jpg

img-id21-2016-01.jpg

1734 ms

btn_mas.png

btn_mas.png

1796 ms

img-id21-2016-02.jpg

img-id21-2016-02.jpg

1827 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

92 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

101 ms

s56936018555425

s56936018555425

10 ms

img-id21-2016-03.jpg

img-id21-2016-03.jpg

1814 ms

img-id21-2016-04.jpg

img-id21-2016-04.jpg

1796 ms

logo_sam_footer.png

logo_sam_footer.png

1810 ms

logo_coneau_footer.png

logo_coneau_footer.png

1837 ms

logo_ue_footer.png

logo_ue_footer.png

1880 ms

logo_ilumno_footer.png

logo_ilumno_footer.png

1833 ms

btn_radio_campus_footer_new.png

btn_radio_campus_footer_new.png

1854 ms

btn_folleto_digital_footer_new.png

btn_folleto_digital_footer_new.png

1841 ms

logo_zephia.png

logo_zephia.png

1879 ms

bg_degrade_repeat_top.png

bg_degrade_repeat_top.png

1905 ms

bg_box_buscar.png

bg_box_buscar.png

1893 ms

bg_form.png

bg_form.png

1887 ms

arrow_btns_sup.png

arrow_btns_sup.png

1838 ms

bg_btn_sup_home.png

bg_btn_sup_home.png

1873 ms

bg_btn_sup_contact.png

bg_btn_sup_contact.png

1902 ms

style.css

style.css

1825 ms

elastislide.css

elastislide.css

1859 ms

jquery.tmpl.min.js

jquery.tmpl.min.js

1769 ms

jquery.elastislide.js

jquery.elastislide.js

1611 ms

gallery.js

gallery.js

1526 ms

bg-botonera-principal.png

bg-botonera-principal.png

1551 ms

bg_titulo_menu.png

bg_titulo_menu.png

1510 ms

arrow.png

arrow.png

1448 ms

bg_line_repeat.png

bg_line_repeat.png

1476 ms

arrow_text.png

arrow_text.png

1387 ms

separador_menu.png

separador_menu.png

1349 ms

bg_col_menu.png

bg_col_menu.png

1373 ms

bg_titulo_menu_chico.png

bg_titulo_menu_chico.png

1211 ms

nav_thumbs.png

nav_thumbs.png

1588 ms

bg_control_eventos_menu.png

bg_control_eventos_menu.png

1213 ms

bg-rs-home.png

bg-rs-home.png

1158 ms

body-bg.png

body-bg.png

1170 ms

loading.gif

loading.gif

1144 ms

bg_title_solicitar_info_home.png

bg_title_solicitar_info_home.png

1117 ms

bg_title_preinscripcion_home.png

bg_title_preinscripcion_home.png

1158 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

1141 ms

box_equivalencias_home_bg.png

box_equivalencias_home_bg.png

1104 ms

btn_home_investigacion.png

btn_home_investigacion.png

1112 ms

btn_home_insercion_laboral.png

btn_home_insercion_laboral.png

1066 ms

btn_home_responsabilidad.png

btn_home_responsabilidad.png

1305 ms

btn_home_intercambio_internacional.png

btn_home_intercambio_internacional.png

1082 ms

btn_home_biblioteca.png

btn_home_biblioteca.png

1072 ms

box_home_edn.jpg

box_home_edn.jpg

1114 ms

box_home_edp.jpg

box_home_edp.jpg

1069 ms

box_home_incompany.jpg

box_home_incompany.jpg

1472 ms

box_home_cloud21.jpg

box_home_cloud21.jpg

1148 ms

box_home_programas_internacionales.jpg

box_home_programas_internacionales.jpg

1099 ms

bg_box_videos_home.png

bg_box_videos_home.png

1111 ms

ico_play.png

ico_play.png

1115 ms

arrow_tit_icon.png

arrow_tit_icon.png

1165 ms

bg_sep_eventos_home.png

bg_sep_eventos_home.png

1151 ms

bg_box_buscar_carrera.png

bg_box_buscar_carrera.png

1158 ms

ico_mapa_argentina.png

ico_mapa_argentina.png

1142 ms

bg-inputs.png

bg-inputs.png

1113 ms

bg_pie_home.png

bg_pie_home.png

1206 ms

bg_sep_vertical_home.png

bg_sep_vertical_home.png

1171 ms

bg_menu_footer_2.png

bg_menu_footer_2.png

1158 ms

2.jpg

2.jpg

1207 ms

7.jpg

7.jpg

1152 ms

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1197 ms

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1205 ms

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1192 ms

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1154 ms

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1.jpg

1207 ms

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1115 ms

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1194 ms

ajax-loader.gif

ajax-loader.gif

1174 ms

7.jpg

7.jpg

845 ms

player_api

player_api

31 ms

arrows.png

arrows.png

173 ms

bullets.png

bullets.png

174 ms

www-widgetapi.js

www-widgetapi.js

21 ms

Accessibility Review

21.edu.ar accessibility score

79

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

21.edu.ar best practices score

85

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Uses deprecated APIs

High

Missing source maps for large first-party JavaScript

SEO Factors

21.edu.ar SEO score

90

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21.edu.ar can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that 21.edu.ar main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

21.edu.ar

Open Graph description is not detected on the main page of 21. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: