Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

subrjiri.cz

SEO (optimalizace webu) a internetový marketing | Jiří Šubr

Page Load Speed

2 sec in total

First Response

400 ms

Resources Loaded

1.5 sec

Page Rendered

150 ms

subrjiri.cz screenshot

About Website

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

Efektivní internetový marketing (SEO, PPC a sociální sítě) od osvědčeného odborníka s mnohaletou zkušeností a prokazatelnými výsledky.

Visit subrjiri.cz

Key Findings

We analyzed Subrjiri.cz page load time and found that the first response time was 400 ms and then it took 1.6 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

subrjiri.cz performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

subrjiri.cz

400 ms

www.subrjiri.cz

492 ms

styles.css

111 ms

ga.js

8 ms

pozadi-top.png

113 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 88% of them (15 requests) were addressed to the original Subrjiri.cz, 12% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (492 ms) belongs to the original domain Subrjiri.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 41.5 kB (19%)

Content Size

216.7 kB

After Optimization

175.2 kB

In fact, the total size of Subrjiri.cz main page is 216.7 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. 15% of websites need less resources to load. Images take 162.1 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 4.1 kB

  • Original 6.7 kB
  • After minification 6.0 kB
  • After compression 2.6 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 760 B, 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 4.1 kB or 61% of the original size.

Image Optimization

-5%

Potential reduce by 8.1 kB

  • Original 162.1 kB
  • After minification 154.0 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. Subrjiri images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 29.1 kB

  • Original 46.3 kB
  • After minification 46.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 29.1 kB or 63% of the original size.

CSS Optimization

-12%

Potential reduce by 185 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 1.4 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. Subrjiri.cz needs all CSS files to be minified and compressed as it can save up to 185 B or 12% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

15

After Optimization

15

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Subrjiri. According to our analytics all requests are already optimized.

Accessibility Review

subrjiri.cz accessibility score

93

Accessibility Issues

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

subrjiri.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

SEO Factors

subrjiri.cz SEO score

75

Search Engine Optimization Advices

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 Subrjiri.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 Subrjiri.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 Subrjiri. 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: