Access esse3web.unisa.it. Homepage area pubblica, Università di Salerno

name

value

score

weighting

FCP (First Contentful Paint)

Value14.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value23.0 s

0/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.281

43/100

15%

TTI (Time to Interactive)

Value17.9 s

3/100

10%

esse3web.unisa.it

479 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Esse3web.unisa.it and no external sources were called. The less responsive or slowest element that took the longest time to load (479 ms) belongs to the original domain Esse3web.unisa.it.

Content Size

28.5 kB

After Optimization

9.2 kB

In fact, the total size of Esse3web.unisa.it main page is 28.5 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. CSS take 24.4 kB which makes up the majority of the site volume.

HTML Optimization

-9%

Potential reduce by 9 B

Original 97 B
After minification 95 B
After compression 88 B

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. This web page is already compressed.

Image Optimization

-1%

Potential reduce by 30 B

Original 4.0 kB
After minification 3.9 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. Esse 3 Web Unisa images are well optimized though.

CSS Optimization

-79%

Potential reduce by 19.2 kB

Original 24.4 kB
After minification 23.3 kB
After compression 5.2 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. Esse3web.unisa.it needs all CSS files to be minified and compressed as it can save up to 19.2 kB or 79% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Some elements have a [tabindex] value greater than 0

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

High

Page is blocked from indexing

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

IT
Language Claimed

N/A
Encoding

N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Esse3web.unisa.it can be misinterpreted by Google and other search engines. Our service has detected that Italian 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 Esse3web.unisa.it main page’s claimed encoding is . 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

esse3web.unisa.it

Open Graph description is not detected on the main page of Esse 3 Web Unisa. 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: