Access nipponcec.cz. NIPPON CEC

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value12.6 s

0/100

25%

SI (Speed Index)

Value18.4 s

0/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.036

100/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

nipponcec.cz

428 ms

www.nipponcec.cz

606 ms

gtm.js

46 ms

konf_vysav.css

212 ms

nivo-slider.css

288 ms

Our browser made a total of 127 requests to load all elements on the main page. We found that 96% of them (122 requests) were addressed to the original Nipponcec.cz, 2% (2 requests) were made to Googletagmanager.com and 1% (1 request) were made to Dtest.cz. The less responsive or slowest element that took the longest time to load (19.6 sec) relates to the external source Dtest.cz.

Content Size

1.7 MB

After Optimization

1.5 MB

In fact, the total size of Nipponcec.cz main page is 1.7 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. 50% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 91.0 kB

Original 117.1 kB
After minification 112.7 kB
After compression 26.1 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 91.0 kB or 78% of the original size.

Image Optimization

-6%

Potential reduce by 86.5 kB

Original 1.5 MB
After minification 1.4 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. NIPPON CEC images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 3.7 kB

Original 47.6 kB
After minification 47.6 kB
After compression 43.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-11%

Potential reduce by 2.5 kB

Original 21.8 kB
After minification 21.7 kB
After compression 19.3 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. Nipponcec.cz needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 11% of the original size.

Requests Now

121

After Optimization

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NIPPON CEC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

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 the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

CS
Language Claimed

CS
Encoding

WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nipponcec.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Nipponcec.cz main page’s claimed encoding is windows-1250. 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

nipponcec.cz

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

NIPPON CEC

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)

Network Requests Diagram

nipponcec.cz

www.nipponcec.cz

gtm.js

konf_vysav.css

nivo-slider.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

nipponcec.cz

www.nipponcec.cz

gtm.js

konf_vysav.css

nivo-slider.css

lightbox2.css

main11.css

font-awesome.min.css

cookies_lista.css

jquery-1.7.2.min.js

jquery.nivo.slider.js

lightbox.js

javascript.js

cookies_lista.js

js

produkt_slider.js

dop.js

stamp.png

onas.png

menu1_deleni.png

login_sub.gif

login_deleni.png

menu_top_deleni.png

payu2023.jpg

dtest24.png

hubice2018.jpg

09.jpg

japonske-darky.jpg

jidlonosice.jpg

filtry-hepa.jpg

moka-kava.jpg

sacky-s-bag.jpg

trubky-madla.jpg

vysavace.jpg

03.jpg

11.jpg

04.jpg

05.jpg

08.jpg

hadice.jpg

01.jpg

akt_deleni.png

filtrovat.png