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Report Summary

About Website

Visit trensim.com now to see the best up-to-date Trensim content for Spain and also check out these interesting facts you probably never knew about trensim.com

PÃ¡gina dedicada a la simulaciÃ³n ferroviaria

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.33

34/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

trensim.com

294 ms

www.trensim.com

540 ms

normal.css

160 ms

normal_en.css

165 ms

external.js

165 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 98% of them (80 requests) were addressed to the original Trensim.com, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Trensim.com.

Content Size

471.2 kB

After Optimization

410.3 kB

In fact, the total size of Trensim.com main page is 471.2 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. 35% of websites need less resources to load. Images take 409.1 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 35.7 kB

Original 41.2 kB
After minification 35.5 kB
After compression 5.5 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. This page needs HTML code to be minified as it can gain 5.7 kB, which is 14% 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 35.7 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 12.6 kB

Original 409.1 kB
After minification 396.5 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. Trensim images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 4.1 kB

Original 10.6 kB
After minification 9.1 kB
After compression 6.5 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 4.1 kB or 39% of the original size.

CSS Optimization

-83%

Potential reduce by 8.5 kB

Original 10.2 kB
After minification 7.2 kB
After compression 1.8 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. Trensim.com needs all CSS files to be minified and compressed as it can save up to 8.5 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trensim. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Issues

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

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

Language and Encoding

Language Detected

EN
Language Claimed

EN
Encoding

WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Trensim.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 Trensim.com main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

trensim.com

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

trensim.com :: Railway simulation

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)