Access srub.cz. Srub.cz: sruby, srubové domy, roubenky, dřevěné domy

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value25.2 s

0/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value1,740 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.306

38/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

srub.cz

397 ms

srub.cz

406 ms

www.srub.cz

1405 ms

js

55 ms

cfbd19c648723bfe5fec24c61d93fdd05d470ac3.css

201 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 82% of them (87 requests) were addressed to the original Srub.cz, 8% (8 requests) were made to Fonts.gstatic.com and 4% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Srub.cz.

Content Size

5.5 MB

After Optimization

5.3 MB

In fact, the total size of Srub.cz main page is 5.5 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. 70% of websites need less resources to load. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 70.6 kB

Original 86.6 kB
After minification 75.2 kB
After compression 16.0 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 11.4 kB, which is 13% 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 70.6 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 139.0 kB

Original 4.9 MB
After minification 4.8 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. Srub images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 44.1 kB

Original 384.1 kB
After minification 384.1 kB
After compression 339.9 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 44.1 kB or 11% of the original size.

CSS Optimization

-11%

Potential reduce by 14.8 kB

Original 140.7 kB
After minification 140.2 kB
After compression 125.9 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. Srub.cz needs all CSS files to be minified and compressed as it can save up to 14.8 kB or 11% of the original size.

Requests Now

After Optimization

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Srub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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/).

High

Document uses 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 Srub.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 Srub.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

srub.cz

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Srub.cz: sruby, srubové domy, roubenky, dřevěné domy - srubové stavby

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

srub.cz

srub.cz

www.srub.cz

js

cfbd19c648723bfe5fec24c61d93fdd05d470ac3.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

srub.cz

srub.cz

www.srub.cz

js

cfbd19c648723bfe5fec24c61d93fdd05d470ac3.css

cache.css

css.css

css_002.css

css_003.css

css_004.css

dm-style.css

elegant-icons.css

font-awesome.css

js_composer.css

magnific-popup.css

owl.css

settings.css

style.css

style_002.css

theme-styles.css

woocommerce.css

woocommerce-layout.css

woocommerce-smallscreen.css

d158ab6182a6a4709b89fd8307ee2b2bd1f66177.js

jquery.fancybox.min.css

jquery.fancybox.min.js

likeform.css

scripts.js

css

baguetteBox.min.css

baguetteBox.min.js

form-antispam.php

jquery_005.js

jquery_006.js

jquery_004.js

modules.js

theme-scripts.js

owl.js

js_composer_front.js

projects.js

js

analytics.js

js