Tools & Wizards About Us
trainz.cz screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

trainz.cz

Trainz.cz - Oficiální stránky Trainz Railroad Simulator

Page Load Speed

4.2 sec in total

First Response

402 ms

Resources Loaded

3.6 sec

Page Rendered

242 ms

trainz.cz screenshot

About Website

Click here to check amazing Trainz content for Russia. Otherwise, check out these important facts you probably never knew about trainz.cz

Oficiální stránky Trainz Railroad Simulator

Visit trainz.cz

Key Findings

We analyzed Trainz.cz page load time and found that the first response time was 402 ms and then it took 3.8 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

trainz.cz performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value83.6 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value1,040 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value50.0 s

0/100

10%

Network Requests Diagram

trainz.cz

402 ms

trainz.cz

392 ms

www.trainz.cz

303 ms

www.trainz.cz

456 ms

reset.css

103 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 89% of them (77 requests) were addressed to the original Trainz.cz, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Trainz.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 437.1 kB (3%)

Content Size

15.8 MB

After Optimization

15.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Trainz.cz main page is 15.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 15.5 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 32.1 kB

  • Original 42.9 kB
  • After minification 38.8 kB
  • After compression 10.8 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 32.1 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 343.8 kB

  • Original 15.5 MB
  • After minification 15.1 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. Trainz images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 49.3 kB

  • Original 213.0 kB
  • After minification 212.5 kB
  • After compression 163.7 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 49.3 kB or 23% of the original size.

CSS Optimization

-37%

Potential reduce by 11.9 kB

  • Original 32.2 kB
  • After minification 32.2 kB
  • After compression 20.4 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. Trainz.cz needs all CSS files to be minified and compressed as it can save up to 11.9 kB or 37% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (15%)

Requests Now

81

After Optimization

69

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trainz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

trainz.cz

trainz.cz

402 ms

trainz.cz

trainz.cz

392 ms

www.trainz.cz

www.trainz.cz

303 ms

www.trainz.cz

www.trainz.cz

456 ms

reset.css

reset.css

103 ms

bootstrap.css

bootstrap.css

305 ms

main.css

main.css

292 ms

modernizr-2.6.2.min.js

modernizr-2.6.2.min.js

287 ms

adsbygoogle.js

adsbygoogle.js

58 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

410 ms

bootstrap.min.js

bootstrap.min.js

289 ms

plugins.js

plugins.js

289 ms

script.js

script.js

410 ms

jquery.cycle2.min.js

jquery.cycle2.min.js

411 ms

analytics.js

analytics.js

81 ms

body_obsah.png

body_obsah.png

137 ms

trainz_nazev.png

trainz_nazev.png

137 ms

language_icon.png

language_icon.png

138 ms

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body_obsah_top.png

162 ms

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718 ms

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670 ms

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675 ms

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674 ms

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768 ms

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814 ms

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772 ms

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776 ms

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779 ms

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818 ms

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870 ms

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875 ms

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878 ms

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880 ms

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915 ms

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920 ms

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974 ms

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983 ms

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983 ms

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985 ms

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1017 ms

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1114 ms

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1077 ms

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1088 ms

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1086 ms

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1086 ms

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1120 ms

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1180 ms

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1159 ms

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1117 ms

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1115 ms

all.js

all.js

52 ms

platform.js

platform.js

67 ms

widgets.js

widgets.js

53 ms

collect

collect

26 ms

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1082 ms

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1088 ms

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1150 ms

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1155 ms

all.js

all.js

25 ms

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widget_iframe.2f70fb173b9000da126c79afe2098f02.html

28 ms

js

js

94 ms

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1127 ms

settings

settings

117 ms

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624 ms

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644 ms

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649 ms

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674 ms

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629 ms

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627 ms

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624 ms

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641 ms

banner.gif

banner.gif

612 ms

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674 ms

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629 ms

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625 ms

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95 ms

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619 ms

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605 ms

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606 ms

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623 ms

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626 ms

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613 ms

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615 ms

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636 ms

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610 ms

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618 ms

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610 ms

Accessibility Review

trainz.cz accessibility score

93

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

trainz.cz best practices score

67

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

High

Page has valid source maps

SEO Factors

trainz.cz SEO score

98

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 uses legible font sizes

High

Tap targets are not sized appropriately

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 Trainz.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 Trainz.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

trainz.cz

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