Report Summary

  • 50

    Performance

    Renders faster than
    70% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

abscr.cz

Archiv bezpečnostních složek

Page Load Speed

4.8 sec in total

First Response

479 ms

Resources Loaded

4 sec

Page Rendered

270 ms

abscr.cz screenshot

About Website

Welcome to abscr.cz homepage info - get ready to check Abscr best content for Czech Republic right away, or after learning these important things about abscr.cz

Organizační složka státu, zpřístupňuje a zveřejňuje dokumenty a archiválie podle zákona o zpřístupňování svazků vzniklých činností bývalé StB, plní na úseku archivnictví úkoly vyplývající z mezinárodn...

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Key Findings

We analyzed Abscr.cz page load time and found that the first response time was 479 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

abscr.cz performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.445

21/100

15%

TTI (Time to Interactive)

Value6.4 s

59/100

10%

Network Requests Diagram

abscr.cz

479 ms

screen_abs_new.css

239 ms

jquery-1.6.4.min.js

611 ms

hover-menu.js

120 ms

ufo.js

123 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 96% of them (51 requests) were addressed to the original Abscr.cz, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Abscr.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 156.4 kB (10%)

Content Size

1.5 MB

After Optimization

1.4 MB

In fact, the total size of Abscr.cz main page is 1.5 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. 25% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 15.2 kB

  • Original 20.9 kB
  • After minification 17.7 kB
  • After compression 5.7 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 3.1 kB, which is 15% 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 15.2 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 23.3 kB

  • Original 1.3 MB
  • After minification 1.3 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. Abscr images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 100.0 kB

  • Original 160.5 kB
  • After minification 147.6 kB
  • After compression 60.5 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 100.0 kB or 62% of the original size.

CSS Optimization

-84%

Potential reduce by 17.9 kB

  • Original 21.4 kB
  • After minification 14.6 kB
  • After compression 3.5 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. Abscr.cz needs all CSS files to be minified and compressed as it can save up to 17.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (44%)

Requests Now

52

After Optimization

29

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Abscr. 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 as a result speed up the page load time.

Accessibility Review

abscr.cz accessibility score

100

Accessibility Issues

Best Practices

abscr.cz 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

abscr.cz SEO score

83

Search Engine Optimization Advices

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

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 Abscr.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 Abscr.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

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