Tools & Wizards About Us
iocb.cz screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

iocb.cz

Institute of Organic Chemistry and Biochemistry of the CAS

Page Load Speed

4.9 sec in total

First Response

422 ms

Resources Loaded

3.6 sec

Page Rendered

926 ms

iocb.cz screenshot

About Website

Click here to check amazing Iocb content for India. Otherwise, check out these important facts you probably never knew about iocb.cz

A leading research institution under the umbrella of the Czech Academy of Sciences. Our mission is basic research at the interface of chemical and biological sciences and translation of results from…

Visit iocb.cz

Key Findings

We analyzed Iocb.cz page load time and found that the first response time was 422 ms and then it took 4.5 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

iocb.cz performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

iocb.cz

422 ms

www.uochb.cz

662 ms

en

584 ms

styles.css

430 ms

cookieconsent.js

21 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Iocb.cz, 76% (32 requests) were made to Uochb.cz and 7% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Uochb.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 395.3 kB (15%)

Content Size

2.6 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iocb.cz main page is 2.6 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. 50% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 92.8 kB

  • Original 111.3 kB
  • After minification 83.0 kB
  • After compression 18.6 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 28.3 kB, which is 25% 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 92.8 kB or 83% of the original size.

Image Optimization

-4%

Potential reduce by 93.1 kB

  • Original 2.2 MB
  • After minification 2.1 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. Iocb images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 117.6 kB

  • Original 179.1 kB
  • After minification 179.1 kB
  • After compression 61.5 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 117.6 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 91.9 kB

  • Original 109.4 kB
  • After minification 109.3 kB
  • After compression 17.5 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. Iocb.cz needs all CSS files to be minified and compressed as it can save up to 91.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (22%)

Requests Now

23

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iocb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

iocb.cz

iocb.cz

422 ms

www.uochb.cz

www.uochb.cz

662 ms

en

en

584 ms

styles.css

styles.css

430 ms

cookieconsent.js

cookieconsent.js

21 ms

js

js

66 ms

js

js

110 ms

cookieconsent.css

cookieconsent.css

5 ms

scripts.js

scripts.js

571 ms

widgets.js

widgets.js

15 ms

css

css

38 ms

open-paper.png

open-paper.png

241 ms

search-loop.svg

search-loop.svg

248 ms

arrow-right.svg

arrow-right.svg

371 ms

logo-uochb.svg

logo-uochb.svg

463 ms

loop.svg

loop.svg

373 ms

arrow-right-light.svg

arrow-right-light.svg

374 ms

45b9a3593ecae975441cae9bb954fb04f67613c3.jpg

45b9a3593ecae975441cae9bb954fb04f67613c3.jpg

459 ms

0e3ecd4e600406bcbda2996a990935d9bb4e9faa.jpg

0e3ecd4e600406bcbda2996a990935d9bb4e9faa.jpg

634 ms

47adaf89bf767bddca0613d47bd7c49d1c4a4e67.jpg

47adaf89bf767bddca0613d47bd7c49d1c4a4e67.jpg

928 ms

articles75070.jpeg

articles75070.jpeg

997 ms

homepage-bg.png

homepage-bg.png

1084 ms

cf6568f47681e7c2bde6ec598f1cf7fc434c9462.jpg

cf6568f47681e7c2bde6ec598f1cf7fc434c9462.jpg

527 ms

Graphik-Regular.woff

Graphik-Regular.woff

440 ms

Graphik-Medium.woff

Graphik-Medium.woff

449 ms

Graphik-Light.woff

Graphik-Light.woff

511 ms

Graphik-Extralight.woff

Graphik-Extralight.woff

659 ms

Graphik-Thin.woff

Graphik-Thin.woff

576 ms

Graphik-Semibold.woff

Graphik-Semibold.woff

635 ms

Graphik-Bold.woff

Graphik-Bold.woff

689 ms

Graphik-Black.woff

Graphik-Black.woff

758 ms

Graphik-RegularItalic.woff

Graphik-RegularItalic.woff

776 ms

Graphik-MediumItalic.woff

Graphik-MediumItalic.woff

795 ms

Graphik-LightItalic.woff

Graphik-LightItalic.woff

811 ms

Graphik-ExtralightItalic.woff

Graphik-ExtralightItalic.woff

872 ms

Graphik-ThinItalic.woff

Graphik-ThinItalic.woff

891 ms

Graphik-SemiboldItalic.woff

Graphik-SemiboldItalic.woff

891 ms

Graphik-BoldItalic.woff

Graphik-BoldItalic.woff

908 ms

Graphik-BlackItalic.woff

Graphik-BlackItalic.woff

924 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

32 ms

settings

settings

101 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

10 ms

Accessibility Review

iocb.cz accessibility score

63

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

iocb.cz 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

SEO Factors

iocb.cz SEO score

78

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 Iocb.cz 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 Iocb.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

iocb.cz

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