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f4e.europa.eu screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

f4e.europa.eu

Fusion for Energy - Bringing the power of the sun to Earth

Page Load Speed

6.2 sec in total

First Response

1.5 sec

Resources Loaded

4.2 sec

Page Rendered

527 ms

f4e.europa.eu screenshot

About Website

Visit f4e.europa.eu now to see the best up-to-date F 4 E Europa content for Italy and also check out these interesting facts you probably never knew about f4e.europa.eu

F4E is responsible for the European contribution to ITER and the development of Fusion energy. Discover the merits and business opportunities of the biggest experiment in fusion energy.

Visit f4e.europa.eu

Key Findings

We analyzed F4e.europa.eu page load time and found that the first response time was 1.5 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

f4e.europa.eu performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value17.7 s

0/100

10%

TBT (Total Blocking Time)

Value960 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value1

2/100

15%

TTI (Time to Interactive)

Value11.5 s

18/100

10%

Network Requests Diagram

fusionforenergy.europa.eu

1500 ms

style.min.css

169 ms

style.css

261 ms

pum-site.min.css

361 ms

css

29 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original F4e.europa.eu, 5% (1 request) were made to Fonts.googleapis.com and 5% (1 request) were made to Webtools.europa.eu. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Fusionforenergy.europa.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 98.5 kB (17%)

Content Size

588.9 kB

After Optimization

490.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of F4e.europa.eu main page is 588.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Javascripts take 416.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 97.9 kB

  • Original 120.4 kB
  • After minification 120.1 kB
  • After compression 22.5 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 97.9 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 5.5 kB
  • After minification 5.5 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. F 4 E Europa images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 482 B

  • Original 416.9 kB
  • After minification 416.9 kB
  • After compression 416.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 170 B

  • Original 46.1 kB
  • After minification 46.1 kB
  • After compression 46.0 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. F4e.europa.eu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (79%)

Requests Now

14

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of F 4 E Europa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

fusionforenergy.europa.eu

fusionforenergy.europa.eu

1500 ms

style.min.css

style.min.css

169 ms

style.css

style.css

261 ms

pum-site.min.css

pum-site.min.css

361 ms

css

css

29 ms

jquery.min.js

jquery.min.js

436 ms

jquery-migrate.min.js

jquery-migrate.min.js

351 ms

inspage.js

inspage.js

287 ms

lazyload.js

lazyload.js

288 ms

min.js

min.js

606 ms

iter.js

iter.js

460 ms

core.min.js

core.min.js

459 ms

site.min.js

site.min.js

460 ms

sprite-icons.png

sprite-icons.png

87 ms

load.js

load.js

572 ms

Gotham-Book.otf

Gotham-Book.otf

570 ms

Gotham-Medium.otf

Gotham-Medium.otf

571 ms

Gotham-Light.otf

Gotham-Light.otf

571 ms

Gotham-Bold.otf

Gotham-Bold.otf

570 ms

Gotham-BookIta.otf

Gotham-BookIta.otf

569 ms

Gotham-MediumIta.otf

Gotham-MediumIta.otf

568 ms

GothamBoldIta.otf

GothamBoldIta.otf

569 ms

Accessibility Review

f4e.europa.eu accessibility score

90

Accessibility Issues

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

f4e.europa.eu best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

f4e.europa.eu SEO score

81

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise F4e.europa.eu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that F4e.europa.eu 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

f4e.europa.eu

Open Graph data is detected on the main page of F 4 E Europa. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: