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cerdd.ch screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

cerdd.ch

CERDD - CERDD (DECS) - Repubblica e Cantone Ticino

Page Load Speed

9.7 sec in total

First Response

319 ms

Resources Loaded

9.1 sec

Page Rendered

293 ms

cerdd.ch screenshot

About Website

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.ch

Key Findings

We 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.

Performance Metrics

cerdd.ch performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.609

10/100

15%

TTI (Time to Interactive)

Value16.4 s

5/100

10%

Network Requests Diagram

cerdd.ch

319 ms

cerdd

198 ms

ruxitagentjs_ICA7NVfqrux_10295240705110949.js

468 ms

slider.css

321 ms

868f9ec972.css

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 Optimization Overview & Recommendations

Page size can be reduced by 104.3 kB (4%)

Content Size

2.6 MB

After Optimization

2.5 MB

  • HTML
  • Images

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.

HTML Optimization

-81%

Potential reduce by 31.1 kB

  • Original 38.3 kB
  • After minification 35.0 kB
  • After compression 7.2 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. 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.

Image Optimization

-3%

Potential reduce by 73.2 kB

  • Original 2.6 MB
  • After minification 2.5 MB

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.

Requests Breakdown

Number of requests can be reduced by 36 (50%)

Requests Now

72

After Optimization

36

  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

cerdd.ch

cerdd.ch

319 ms

cerdd

cerdd

198 ms

ruxitagentjs_ICA7NVfqrux_10295240705110949.js

ruxitagentjs_ICA7NVfqrux_10295240705110949.js

468 ms

slider.css

slider.css

321 ms

868f9ec972.css

868f9ec972.css

323 ms

styles.css

styles.css

323 ms

Basic.css

Basic.css

429 ms

bootstrap.min.css

bootstrap.min.css

536 ms

styles.css

styles.css

1075 ms

font-awesome.min.css

font-awesome.min.css

543 ms

style.css

style.css

546 ms

bootstrap-datetimepicker.min.css

bootstrap-datetimepicker.min.css

545 ms

bootstrap-select.min.css

bootstrap-select.min.css

575 ms

owl.carousel.css

owl.carousel.css

650 ms

datepicker.css

datepicker.css

645 ms

select2.min.css

select2.min.css

647 ms

fontac.css

fontac.css

646 ms

ekko-lightbox.css

ekko-lightbox.css

682 ms

aa8f252346.css

aa8f252346.css

754 ms

e9e07c5ca0.js

e9e07c5ca0.js

752 ms

jquery.js

jquery.js

1122 ms

bootstrap.min.js

bootstrap.min.js

753 ms

jsGenerale.js

jsGenerale.js

905 ms

jQuery.highlighter.js

jQuery.highlighter.js

859 ms

moment.js

moment.js

967 ms

bootstrap-select.min.js

bootstrap-select.min.js

862 ms

bootstrap-datepicker.js

bootstrap-datepicker.js

968 ms

owl.carousel.min.js

owl.carousel.min.js

971 ms

select2.min.js

select2.min.js

1014 ms

d3.js

d3.js

1404 ms

readmore.js

readmore.js

1102 ms

ekko-lightbox.js

ekko-lightbox.js

1102 ms

jquery.datetimepicker.min.js

jquery.datetimepicker.min.js

1124 ms

parsley.min.js

parsley.min.js

1180 ms

Tabs.min.js

Tabs.min.js

1183 ms

Form.min.js

Form.min.js

1187 ms

captcha.js

captcha.js

1228 ms

bootstrap-theme.css

bootstrap-theme.css

701 ms

gtm.js

gtm.js

188 ms

ti-ch.png

ti-ch.png

212 ms

ELR_3905_drrr_drrr_T_2.jpg

ELR_3905_drrr_drrr_T_2.jpg

529 ms

ELR_3971_drrr_drrr_T_2.jpg

ELR_3971_drrr_drrr_T_2.jpg

639 ms

ELR_4020_drrr_drrr_T_2.jpg

ELR_4020_drrr_drrr_T_2.jpg

842 ms

ELR_3965_drrr_drrr_T_2.jpg

ELR_3965_drrr_drrr_T_2.jpg

744 ms

ELR_3946_drrr_drrr_T_2.jpg

ELR_3946_drrr_drrr_T_2.jpg

847 ms

ELR_3960_drrr_drrr_T_2.jpg

ELR_3960_drrr_drrr_T_2.jpg

427 ms

ELR_4024_drrr_drrr_T_2.jpg

ELR_4024_drrr_drrr_T_2.jpg

957 ms

ELR_4009_drrr_drrr_T_2.jpg

ELR_4009_drrr_drrr_T_2.jpg

1058 ms

ELR_3909_drrr_drrr_T_2.jpg

ELR_3909_drrr_drrr_T_2.jpg

851 ms

_DSF3446_drrr_T.jpg

_DSF3446_drrr_T.jpg

5395 ms

1A.png

1A.png

950 ms

3.png

3.png

955 ms

4A.png

4A.png

958 ms

6.png

6.png

1058 ms

7.png

7.png

1063 ms

5.png

5.png

1065 ms

8A.png

8A.png

1067 ms

CERDD_LAD_bianco-blu_01.png

CERDD_LAD_bianco-blu_01.png

1169 ms

1-mobile.png

1-mobile.png

1173 ms

2A-mobile.png

2A-mobile.png

1171 ms

4A-mobile.png

4A-mobile.png

1173 ms

6-mobile.png

6-mobile.png

1175 ms

7-mobile.png

7-mobile.png

1277 ms

5-mobile.png

5-mobile.png

1279 ms

8-mobile.png

8-mobile.png

1279 ms

LAD_icona_blu.png

LAD_icona_blu.png

1280 ms

facebook-3-240a.png

facebook-3-240a.png

1282 ms

instagram-13-20x20.png

instagram-13-20x20.png

1385 ms

MedicoCantonale.png

MedicoCantonale.png

1389 ms

resto.png

resto.png

1387 ms

RaccoltaLeggi.png

RaccoltaLeggi.png

1388 ms

polizia_e_territorio.png

polizia_e_territorio.png

1389 ms

ti_footer.png

ti_footer.png

1492 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1469 ms

aef05e22-e1d4-4e59-bc2e-a71c13c26cca.woff

aef05e22-e1d4-4e59-bc2e-a71c13c26cca.woff

1343 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

1290 ms

stampa.css

stampa.css

110 ms

Accessibility Review

cerdd.ch accessibility score

72

Accessibility Issues

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

High

ARIA input fields do not have accessible names

High

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

High

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

cerdd.ch best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

cerdd.ch SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    IT

  • Language Claimed

    IT

  • Encoding

    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.

Social Sharing Optimization

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: