Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

skloplus.cz

SKLO PLUS - Umělecké sklenářství, vitráže, Tiffany lampy

Page Load Speed

8.9 sec in total

First Response

2.2 sec

Resources Loaded

6.3 sec

Page Rendered

344 ms

skloplus.cz screenshot

About Website

Welcome to skloplus.cz homepage info - get ready to check SKLO PLUS best content right away, or after learning these important things about skloplus.cz

Web presentation

Visit skloplus.cz

Key Findings

We analyzed Skloplus.cz page load time and found that the first response time was 2.2 sec and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

skloplus.cz performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

96/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

skloplus.cz

2197 ms

styles.css

329 ms

jquery.fancybox-1.3.4.css

5 ms

addthis_widget.js

16 ms

logo.png

704 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 35% of them (7 requests) were addressed to the original Skloplus.cz, 15% (3 requests) were made to S7.addthis.com and 10% (2 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Skloplus.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (49%)

Content Size

2.3 MB

After Optimization

1.2 MB

In fact, the total size of Skloplus.cz main page is 2.3 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. 35% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 106.2 kB

  • Original 138.7 kB
  • After minification 137.8 kB
  • After compression 32.5 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 106.2 kB or 77% of the original size.

Image Optimization

-22%

Potential reduce by 230.2 kB

  • Original 1.0 MB
  • After minification 813.2 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. Obviously, SKLO PLUS needs image optimization as it can save up to 230.2 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 563.3 kB

  • Original 831.7 kB
  • After minification 831.6 kB
  • After compression 268.4 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 563.3 kB or 68% of the original size.

CSS Optimization

-83%

Potential reduce by 212.9 kB

  • Original 256.8 kB
  • After minification 254.1 kB
  • After compression 43.9 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. Skloplus.cz needs all CSS files to be minified and compressed as it can save up to 212.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (29%)

Requests Now

17

After Optimization

12

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SKLO PLUS. 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.

Accessibility Review

skloplus.cz accessibility score

97

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

skloplus.cz best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

High

Browser errors were logged to the console

SEO Factors

skloplus.cz SEO score

69

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

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 Skloplus.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 Skloplus.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 SKLO PLUS. 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: