Report Summary

  • 26

    Performance

    Renders faster than
    47% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

ismb.it

Istituto Superiore Mario Boella

Page Load Speed

4.4 sec in total

First Response

847 ms

Resources Loaded

3.3 sec

Page Rendered

284 ms

ismb.it screenshot

About Website

Click here to check amazing Ismb content for Italy. Otherwise, check out these important facts you probably never knew about ismb.it

Visit ismb.it

Key Findings

We analyzed Ismb.it page load time and found that the first response time was 847 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

ismb.it performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value23.9 s

0/100

25%

SI (Speed Index)

Value16.6 s

0/100

10%

TBT (Total Blocking Time)

Value280 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.542

13/100

15%

TTI (Time to Interactive)

Value23.1 s

1/100

10%

Network Requests Diagram

ismb.it

847 ms

system.base.css

102 ms

system.menus.css

207 ms

system.messages.css

202 ms

system.theme.css

213 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 58% of them (80 requests) were addressed to the original Ismb.it, 20% (27 requests) were made to Pbs.twimg.com and 6% (8 requests) were made to O.twimg.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Ismb.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 495.0 kB (17%)

Content Size

3.0 MB

After Optimization

2.5 MB

In fact, the total size of Ismb.it main page is 3.0 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. 70% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 37.7 kB

  • Original 47.9 kB
  • After minification 41.8 kB
  • After compression 10.2 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 6.1 kB, which is 13% 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 37.7 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 158.2 kB

  • Original 2.5 MB
  • After minification 2.4 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. Ismb images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 143.5 kB

  • Original 203.3 kB
  • After minification 158.5 kB
  • After compression 59.8 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 143.5 kB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 155.6 kB

  • Original 185.1 kB
  • After minification 133.5 kB
  • After compression 29.5 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. Ismb.it needs all CSS files to be minified and compressed as it can save up to 155.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (49%)

Requests Now

136

After Optimization

69

The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ismb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ismb.it accessibility score

71

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

ismb.it best practices score

50

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

ismb.it SEO score

62

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

Image elements do not have [alt] attributes

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 Ismb.it 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 Ismb.it 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

Open Graph description is not detected on the main page of Ismb. 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: