Tools & Wizards About Us
plc4training.com screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

plc4training.com

SPS Schulungssysteme, SPS Trainer, SPS Ausbildung, SPS Weiterbildung

Page Load Speed

12.1 sec in total

First Response

2.9 sec

Resources Loaded

7.6 sec

Page Rendered

1.6 sec

plc4training.com screenshot

About Website

Click here to check amazing Plc 4 Training content. Otherwise, check out these important facts you probably never knew about plc4training.com

Innovative Toolset ►Simulate - Test - Training - Visualize PLC tasks◄ in education, study or profession. ✓You set the limits!

Visit plc4training.com

Key Findings

We analyzed Plc4training.com page load time and found that the first response time was 2.9 sec and then it took 9.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

plc4training.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value8,650 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

plc4training.com

2892 ms

1404 ms

main.min.css

507 ms

paypal-logo-100x26.png

87 ms

init-en.min.js

1478 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 95% of them (37 requests) were addressed to the original Plc4training.com, 5% (2 requests) were made to Paypalobjects.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Plc4training.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (64%)

Content Size

1.8 MB

After Optimization

642.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Plc4training.com main page is 1.8 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. 45% of websites need less resources to load. CSS take 600.0 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 188.3 kB

  • Original 206.9 kB
  • After minification 133.9 kB
  • After compression 18.6 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 73.0 kB, which is 35% 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 188.3 kB or 91% of the original size.

Image Optimization

-7%

Potential reduce by 28.5 kB

  • Original 398.8 kB
  • After minification 370.4 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. Plc 4 Training images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 381.6 kB

  • Original 558.3 kB
  • After minification 555.1 kB
  • After compression 176.7 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 381.6 kB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 523.6 kB

  • Original 600.0 kB
  • After minification 597.4 kB
  • After compression 76.4 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. Plc4training.com needs all CSS files to be minified and compressed as it can save up to 523.6 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (10%)

Requests Now

30

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Plc 4 Training. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

plc4training.com

plc4training.com

2892 ms

1404 ms

main.min.css

main.min.css

507 ms

paypal-logo-100x26.png

paypal-logo-100x26.png

87 ms

init-en.min.js

init-en.min.js

1478 ms

scripts.js

scripts.js

313 ms

MapWidget.min.js

MapWidget.min.js

310 ms

GMCounter.js

GMCounter.js

327 ms

plc4training.png

plc4training.png

323 ms

bars.svg

bars.svg

397 ms

basket.svg

basket.svg

392 ms

search.svg

search.svg

1366 ms

Lab4PLC_Mini_PLUS_level_monitoring.jpg

Lab4PLC_Mini_PLUS_level_monitoring.jpg

1383 ms

loading.gif

loading.gif

1372 ms

SE2_w_easy.jpg

SE2_w_easy.jpg

1385 ms

Lab4PLC_Adv_S7_both.jpg

Lab4PLC_Adv_S7_both.jpg

1377 ms

S7-1200_Trainingsboard_SET.jpg

S7-1200_Trainingsboard_SET.jpg

1391 ms

RevPi_Trainingsboard_Fuellstand.jpg

RevPi_Trainingsboard_Fuellstand.jpg

1411 ms

Logo8-Trainingsboard_set_case.jpg

Logo8-Trainingsboard_set_case.jpg

1392 ms

pixel_trans.gif

pixel_trans.gif

1401 ms

Starterset_w_easy.jpg

Starterset_w_easy.jpg

1413 ms

Starterset_w_Controllino.jpg

Starterset_w_Controllino.jpg

1415 ms

S7-1200_Trainingsboard_Package.jpg

S7-1200_Trainingsboard_Package.jpg

1419 ms

RevPi_Trainingsboard_set.jpg

RevPi_Trainingsboard_set.jpg

1423 ms

Lab4PLC_Mini_logical.jpg

Lab4PLC_Mini_logical.jpg

1611 ms

Lab4PLC_Basic_Plus_S7_level_monitoring.jpg

Lab4PLC_Basic_Plus_S7_level_monitoring.jpg

1619 ms

Lab4PLC_Adv_Plus_S7_both.jpg

Lab4PLC_Adv_Plus_S7_both.jpg

1623 ms

LAB4PLC_LinkToYouTube.png

LAB4PLC_LinkToYouTube.png

1629 ms

logo_shop_32x32.png

logo_shop_32x32.png

1654 ms

en.svg

en.svg

1661 ms

de.svg

de.svg

1698 ms

cc-logo.png

cc-logo.png

37 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

129 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

128 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

131 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

124 ms

gm.woff

gm.woff

130 ms

fa-solid-900.woff

fa-solid-900.woff

291 ms

fa-regular-400.woff

fa-regular-400.woff

289 ms

Accessibility Review

plc4training.com accessibility score

56

Accessibility Issues

Names and labels

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

plc4training.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

plc4training.com SEO score

89

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Plc4training.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Plc4training.com 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

plc4training.com

Open Graph description is not detected on the main page of Plc 4 Training. 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: