11.4 sec in total
339 ms
10.8 sec
313 ms
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.arWe 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.
21.edu.ar performance score
name
value
score
weighting
Value2.6 s
65/100
10%
Value3.5 s
64/100
25%
Value8.0 s
23/100
10%
Value5,480 ms
0/100
30%
Value0
100/100
15%
Value19.5 s
3/100
10%
339 ms
1090 ms
1061 ms
342 ms
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 size can be reduced by 757.2 kB (39%)
1.9 MB
1.2 MB
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.
Potential reduce by 87.0 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.
Potential reduce by 38.3 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.
Potential reduce by 378.1 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.
Potential reduce by 253.8 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.
Number of requests can be reduced by 72 (41%)
175
103
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.
21.edu.ar
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21.edu.ar accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
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
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
21.edu.ar best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Uses deprecated APIs
Missing source maps for large first-party JavaScript
21.edu.ar SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
ES
N/A
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.
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: