Tools & Wizards About Us
biomikro.vscht.cz screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 85

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

biomikro.vscht.cz

Domovská stránka Ústav biochemie a mikrobiologie VŠCHT Praha - Ústav biochemie a mikrobiologie VŠCHT Praha

Page Load Speed

2 sec in total

First Response

141 ms

Resources Loaded

1.7 sec

Page Rendered

215 ms

biomikro.vscht.cz screenshot

About Website

Visit biomikro.vscht.cz now to see the best up-to-date Biomikro Vscht content for Czech Republic and also check out these interesting facts you probably never knew about biomikro.vscht.cz

Visit biomikro.vscht.cz

Key Findings

We analyzed Biomikro.vscht.cz page load time and found that the first response time was 141 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

biomikro.vscht.cz performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value12.5 s

0/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value1.004

3/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

141 ms

style.css

118 ms

en-play-badge-border.png

82 ms

biochemie.jpg

557 ms

cover_t.png

345 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 93% of them (14 requests) were addressed to the original Biomikro.vscht.cz, 7% (1 request) were made to Play.google.com. The less responsive or slowest element that took the longest time to load (557 ms) belongs to the original domain Biomikro.vscht.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 25.3 kB (11%)

Content Size

234.2 kB

After Optimization

208.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Biomikro.vscht.cz main page is 234.2 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. Only 10% of websites need less resources to load. Images take 213.5 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 7.1 kB

  • Original 11.1 kB
  • After minification 9.8 kB
  • After compression 4.0 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 1.3 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 7.1 kB or 64% of the original size.

Image Optimization

-5%

Potential reduce by 11.1 kB

  • Original 213.5 kB
  • After minification 202.4 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. Biomikro Vscht images are well optimized though.

CSS Optimization

-73%

Potential reduce by 7.0 kB

  • Original 9.6 kB
  • After minification 6.8 kB
  • After compression 2.6 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. Biomikro.vscht.cz needs all CSS files to be minified and compressed as it can save up to 7.0 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (29%)

Requests Now

14

After Optimization

10

  • Images
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biomikro Vscht. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

141 ms

style.css

style.css

118 ms

en-play-badge-border.png

en-play-badge-border.png

82 ms

biochemie.jpg

biochemie.jpg

557 ms

cover_t.png

cover_t.png

345 ms

Parte_t.png

Parte_t.png

348 ms

structure.css

structure.css

127 ms

basics.css

basics.css

237 ms

panels.css

panels.css

242 ms

bgr_header_cz.png

bgr_header_cz.png

350 ms

bgr_navigation.png

bgr_navigation.png

120 ms

bgr_content.png

bgr_content.png

117 ms

bgr_mainmenu.png

bgr_mainmenu.png

119 ms

bgr_footer.png

bgr_footer.png

120 ms

style.css

style.css

118 ms

Accessibility Review

biomikro.vscht.cz accessibility score

64

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.

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

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

biomikro.vscht.cz best practices score

85

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

biomikro.vscht.cz SEO score

83

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

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Biomikro.vscht.cz 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 Biomikro.vscht.cz 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

biomikro.vscht.cz

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