Tools & Wizards About Us
scubalibre.be screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

scubalibre.be

ScubaLibre PADI duikschool|Mechelen en Kapelle op den bos

Page Load Speed

3.9 sec in total

First Response

356 ms

Resources Loaded

3.4 sec

Page Rendered

220 ms

scubalibre.be screenshot

About Website

Visit scubalibre.be now to see the best up-to-date Scuba Libre content and also check out these interesting facts you probably never knew about scubalibre.be

Leren duiken? Wij zijn een padi duikschool die lesgeven in het zwembad van kapelle op den bos en in de nekker te mechelen.

Visit scubalibre.be

Key Findings

We analyzed Scubalibre.be page load time and found that the first response time was 356 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 60% of websites can load faster.

Performance Metrics

scubalibre.be performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value10.3 s

0/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.051

99/100

15%

TTI (Time to Interactive)

Value11.0 s

21/100

10%

Network Requests Diagram

scubalibre.be

356 ms

scubalibre.be

1754 ms

wp-emoji-release.min.js

92 ms

style.min.css

184 ms

styles.css

261 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 80% of them (56 requests) were addressed to the original Scubalibre.be, 11% (8 requests) were made to Fonts.googleapis.com and 6% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Scubalibre.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 233.2 kB (19%)

Content Size

1.2 MB

After Optimization

966.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Scubalibre.be main page is 1.2 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 688.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 39.3 kB

  • Original 49.4 kB
  • After minification 43.8 kB
  • After compression 10.1 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. This page needs HTML code to be minified as it can gain 5.6 kB, which is 11% 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 39.3 kB or 80% of the original size.

Image Optimization

-20%

Potential reduce by 138.4 kB

  • Original 688.1 kB
  • After minification 549.6 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. Obviously, Scuba Libre needs image optimization as it can save up to 138.4 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-13%

Potential reduce by 44.4 kB

  • Original 354.3 kB
  • After minification 334.0 kB
  • After compression 309.9 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 44.4 kB or 13% of the original size.

CSS Optimization

-10%

Potential reduce by 11.0 kB

  • Original 108.2 kB
  • After minification 108.2 kB
  • After compression 97.2 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. Scubalibre.be has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 46 (84%)

Requests Now

55

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Scuba Libre. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

scubalibre.be

scubalibre.be

356 ms

scubalibre.be

scubalibre.be

1754 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

92 ms

style.min.css

style.min.css

184 ms

styles.css

styles.css

261 ms

cookie-law-info-public.css

cookie-law-info-public.css

264 ms

cookie-law-info-gdpr.css

cookie-law-info-gdpr.css

264 ms

style.css

style.css

266 ms

style.css

style.css

269 ms

style.css

style.css

272 ms

bootstrap.css

bootstrap.css

438 ms

default.css

default.css

352 ms

enigma-theme.css

enigma-theme.css

351 ms

media-responsive.css

media-responsive.css

354 ms

animations.css

animations.css

355 ms

theme-animtae.css

theme-animtae.css

361 ms

all.css

all.css

530 ms

fontawesome.css

fontawesome.css

527 ms

font-awesome.css

font-awesome.css

448 ms

css

css

34 ms

css

css

47 ms

css

css

52 ms

css

css

52 ms

css

css

53 ms

css

css

54 ms

css

css

58 ms

css

css

59 ms

photobox.css

photobox.css

445 ms

photonic-swipebox.min.css

photonic-swipebox.min.css

447 ms

jquery.min.js

jquery.min.js

537 ms

jquery-migrate.min.js

jquery-migrate.min.js

548 ms

cookie-law-info-public.js

cookie-law-info-public.js

553 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

626 ms

wp-polyfill.min.js

wp-polyfill.min.js

625 ms

index.js

index.js

626 ms

popper.js

popper.js

626 ms

bootstrap.js

bootstrap.js

629 ms

menu.js

menu.js

629 ms

enigma_theme_script.js

enigma_theme_script.js

697 ms

jquery.carouFredSel-6.2.1.js

jquery.carouFredSel-6.2.1.js

702 ms

jquery.photobox.js

jquery.photobox.js

701 ms

enigma-footer-script.js

enigma-footer-script.js

709 ms

waypoints.js

waypoints.js

714 ms

scroll.js

scroll.js

713 ms

api.js

api.js

40 ms

comment-reply.min.js

comment-reply.min.js

783 ms

enigma-ajax-front.js

enigma-ajax-front.js

707 ms

index.js

index.js

616 ms

wp-embed.min.js

wp-embed.min.js

551 ms

scubalibre_new_proposal_512_512.png

scubalibre_new_proposal_512_512.png

413 ms

shadow.png

shadow.png

290 ms

slide3_v1-1.jpg

slide3_v1-1.jpg

172 ms

seahorse_very_small-1_v1.jpg

seahorse_very_small-1_v1.jpg

174 ms

slide1_v1.jpg

slide1_v1.jpg

174 ms

padi-logo-1.png

padi-logo-1.png

176 ms

dan-logo.png

dan-logo.png

178 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

28 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

32 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

44 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

45 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

424 ms

fa-brands-400.woff

fa-brands-400.woff

340 ms

fa-solid-900.woff

fa-solid-900.woff

438 ms

fa-regular-400.woff

fa-regular-400.woff

308 ms

slide3_v1-1.jpg

slide3_v1-1.jpg

509 ms

seahorse_very_small-1_v1.jpg

seahorse_very_small-1_v1.jpg

421 ms

slide1_v1.jpg

slide1_v1.jpg

408 ms

padi-logo-1.png

padi-logo-1.png

326 ms

dan-logo.png

dan-logo.png

395 ms

recaptcha__en.js

recaptcha__en.js

74 ms

Accessibility Review

scubalibre.be accessibility score

89

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

scubalibre.be best practices score

83

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

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

scubalibre.be SEO score

79

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Scubalibre.be can be misinterpreted by Google and other search engines. Our service has detected that English 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 Scubalibre.be 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

scubalibre.be

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