9.7 sec in total
319 ms
9.1 sec
293 ms
Welcome to cerdd.ch homepage info - get ready to check CERDD best content for Switzerland right away, or after learning these important things about cerdd.ch
Il Centro di risorse didattiche e digitali (CERDD) è il centro di competenza del Dipartimento dell'educazione, della cultura e dello sport (DECS) che ha come missione principale l’integrazione didatti...
Visit cerdd.chWe analyzed Cerdd.ch page load time and found that the first response time was 319 ms and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
cerdd.ch performance score
name
value
score
weighting
Value8.9 s
0/100
10%
Value8.9 s
1/100
25%
Value15.2 s
1/100
10%
Value350 ms
73/100
30%
Value0.609
10/100
15%
Value16.4 s
5/100
10%
319 ms
198 ms
468 ms
321 ms
323 ms
Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Cerdd.ch, 97% (75 requests) were made to Www4.ti.ch and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (5.4 sec) relates to the external source Www4.ti.ch.
Page size can be reduced by 104.3 kB (4%)
2.6 MB
2.5 MB
In fact, the total size of Cerdd.ch main page is 2.6 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. 55% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.
Potential reduce by 31.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 31.1 kB or 81% of the original size.
Potential reduce by 73.2 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. CERDD images are well optimized though.
Number of requests can be reduced by 36 (50%)
72
36
The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERDD. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.
cerdd.ch
319 ms
cerdd
198 ms
ruxitagentjs_ICA7NVfqrux_10295240705110949.js
468 ms
slider.css
321 ms
868f9ec972.css
323 ms
styles.css
323 ms
Basic.css
429 ms
bootstrap.min.css
536 ms
styles.css
1075 ms
font-awesome.min.css
543 ms
style.css
546 ms
bootstrap-datetimepicker.min.css
545 ms
bootstrap-select.min.css
575 ms
owl.carousel.css
650 ms
datepicker.css
645 ms
select2.min.css
647 ms
fontac.css
646 ms
ekko-lightbox.css
682 ms
aa8f252346.css
754 ms
e9e07c5ca0.js
752 ms
jquery.js
1122 ms
bootstrap.min.js
753 ms
jsGenerale.js
905 ms
jQuery.highlighter.js
859 ms
moment.js
967 ms
bootstrap-select.min.js
862 ms
bootstrap-datepicker.js
968 ms
owl.carousel.min.js
971 ms
select2.min.js
1014 ms
d3.js
1404 ms
readmore.js
1102 ms
ekko-lightbox.js
1102 ms
jquery.datetimepicker.min.js
1124 ms
parsley.min.js
1180 ms
Tabs.min.js
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Form.min.js
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captcha.js
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bootstrap-theme.css
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gtm.js
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ti-ch.png
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CERDD_LAD_bianco-blu_01.png
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LAD_icona_blu.png
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resto.png
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polizia_e_territorio.png
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ti_footer.png
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fontawesome-webfont.woff
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aef05e22-e1d4-4e59-bc2e-a71c13c26cca.woff
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glyphicons-halflings-regular.woff
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stampa.css
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cerdd.ch accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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.
cerdd.ch best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
cerdd.ch SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
IT
IT
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cerdd.ch can be misinterpreted by Google and other search engines. Our service has detected that Italian is used on the page, and it matches the claimed language. Our system also found out that Cerdd.ch main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
cerdd.ch
Open Graph description is not detected on the main page of CERDD. 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: