Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

slovniky.cz

Slovníky.cz

Page Load Speed

1.5 sec in total

First Response

407 ms

Resources Loaded

1 sec

Page Rendered

95 ms

slovniky.cz screenshot

About Website

Visit slovniky.cz now to see the best up-to-date Slovniky content for Slovakia and also check out these interesting facts you probably never knew about slovniky.cz

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Key Findings

We analyzed Slovniky.cz page load time and found that the first response time was 407 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

slovniky.cz performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

slovniky.cz

407 ms

hp.maxdorf.css

215 ms

hpico1.jpg

321 ms

hpico7.jpg

223 ms

ga.js

37 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 83% of them (10 requests) were addressed to the original Slovniky.cz, 17% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (414 ms) belongs to the original domain Slovniky.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.5 kB (4%)

Content Size

88.9 kB

After Optimization

85.4 kB

In fact, the total size of Slovniky.cz main page is 88.9 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 67.0 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 2.2 kB

  • Original 3.1 kB
  • After minification 2.1 kB
  • After compression 908 B

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 997 B, which is 32% 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 2.2 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 168 B

  • Original 67.0 kB
  • After minification 66.9 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. Slovniky images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-71%

Potential reduce by 1.1 kB

  • Original 1.6 kB
  • After minification 1.2 kB
  • After compression 461 B

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. Slovniky.cz needs all CSS files to be minified and compressed as it can save up to 1.1 kB or 71% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slovniky. According to our analytics all requests are already optimized.

Accessibility Review

slovniky.cz accessibility score

85

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

Best Practices

slovniky.cz best practices score

75

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

SEO Factors

slovniky.cz SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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