Access tcn.es. TCN Official Online Shop - Buy

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value38.5 s

0/100

25%

SI (Speed Index)

Value19.0 s

0/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

login.php

97 ms

sha512.js

99 ms

forms.js

192 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that all of those requests were addressed to Tcn.es and no external sources were called. The less responsive or slowest element that took the longest time to load (192 ms) belongs to the original domain Tcn.es.

Content Size

17.2 kB

After Optimization

3.8 kB

In fact, the total size of Tcn.es main page is 17.2 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 16.8 kB which makes up the majority of the site volume.

HTML Optimization

-48%

Potential reduce by 215 B

Original 445 B
After minification 433 B
After compression 230 B

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 215 B or 48% of the original size.

JavaScript Optimization

-79%

Potential reduce by 13.2 kB

Original 16.8 kB
After minification 10.1 kB
After compression 3.5 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 13.2 kB or 79% of the original size.

Requests Now

After Optimization

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TCN. According to our analytics all requests are already optimized.

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

[id] attributes on active, focusable elements are not unique

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

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

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

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

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

EN
Language Claimed

N/A
Encoding

UTF8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tcn.es can be misinterpreted by Google and other search engines. Our service has detected that English 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 Tcn.es main page’s claimed encoding is utf8. 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

tcn.es

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