Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

visualllab.net

Vizuální Myšlení a Hravé Návrhářství | Vizuálně i teatrálně, ale hlavně hravě !

Page Load Speed

9.1 sec in total

First Response

3.5 sec

Resources Loaded

5.2 sec

Page Rendered

426 ms

visualllab.net screenshot

About Website

Click here to check amazing Visualllab content. Otherwise, check out these important facts you probably never knew about visualllab.net

We actively help to grow next generation of Designers, Architects, Engineers and Technologists. Aktivně pomáháme vyrůst další generaci Návrhářů...

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Key Findings

We analyzed Visualllab.net page load time and found that the first response time was 3.5 sec and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

visualllab.net performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value9.5 s

11/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

visualllab.net

3503 ms

style.css

212 ms

jquery.fancybox-1.3.6.css

325 ms

style.css

267 ms

8b1a4f5383c3ce8463428fd0200b1049b49d8030.css

256 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 47% of them (26 requests) were addressed to the original Visualllab.net, 16% (9 requests) were made to Apis.google.com and 7% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (3.5 sec) belongs to the original domain Visualllab.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 272.5 kB (38%)

Content Size

715.2 kB

After Optimization

442.7 kB

In fact, the total size of Visualllab.net main page is 715.2 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. 50% of websites need less resources to load. Images take 351.6 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 91.2 kB

  • Original 116.5 kB
  • After minification 114.8 kB
  • After compression 25.4 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 91.2 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 11.4 kB

  • Original 351.6 kB
  • After minification 340.3 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. Visualllab images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 134.7 kB

  • Original 203.1 kB
  • After minification 196.5 kB
  • After compression 68.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 134.7 kB or 66% of the original size.

CSS Optimization

-80%

Potential reduce by 35.4 kB

  • Original 44.0 kB
  • After minification 32.5 kB
  • After compression 8.6 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. Visualllab.net needs all CSS files to be minified and compressed as it can save up to 35.4 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (52%)

Requests Now

54

After Optimization

26

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Visualllab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

visualllab.net accessibility score

73

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

visualllab.net best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

visualllab.net SEO score

64

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Visualllab.net can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Visualllab.net 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 data is detected on the main page of Visualllab. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: