Access sisley.cz. Sisley Paris - péče o pleť, líčení, parfémy a vlasové rituály od Sisley

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value3,330 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.5 s

4/100

10%

sisley.cz

405 ms

201 ms

main.css

94 ms

logo.png

173 ms

core.css

98 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Sisley.cz, 99% (100 requests) were made to Sisley-paris.com. The less responsive or slowest element that took the longest time to load (646 ms) relates to the external source Sisley-paris.com.

Content Size

235.0 kB

After Optimization

51.8 kB

In fact, the total size of Sisley.cz main page is 235.0 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. 20% of websites need less resources to load. CSS take 225.7 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 1.8 kB

Original 2.5 kB
After minification 1.7 kB
After compression 778 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. This page needs HTML code to be minified as it can gain 831 B, which is 33% 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 1.8 kB or 69% of the original size.

Image Optimization

-24%

Potential reduce by 1.6 kB

Original 6.7 kB
After minification 5.1 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. Obviously, Sisley needs image optimization as it can save up to 1.6 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-80%

Potential reduce by 179.8 kB

Original 225.7 kB
After minification 149.2 kB
After compression 45.9 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. Sisley.cz needs all CSS files to be minified and compressed as it can save up to 179.8 kB or 80% of the original size.

Requests Now

After Optimization

The browser has sent 99 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sisley. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 97 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 keyboard navigation in your application.

High

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

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.

High

ARIA IDs 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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

Page has valid source maps

Search Engine Optimization Advices

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

High

robots.txt is not valid

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

High

Image elements do not have [alt] attributes

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

Language and Encoding

Language Detected

CS
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sisley.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Sisley.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

sisley.cz

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

Sisley Paris - péče o pleť, líčení, parfémy a vlasové rituály od Sisley

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

sisley.cz

main.css

logo.png

core.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

sisley.cz

main.css

logo.png

core.css

skins.css

modules.css

modules2.css

modules3.css

content.css

jquery.jqzoom.css

grid.css

normalize.css

footer.css

forgotten_password.css

header.css

homepage.css

homepage_slider.css

infinite_scroll.css

lightbox.css

list_block.css

loader.css

loyalty_program.css

min_product_detail.css

monitoring_return.css

movingboxes.css

need_help.css

newsletter.css

order_confirmation.css

page_useful_infos.css

pagination.css

payment_delivery.css

perfume.css

personal_information.css

popin_share_invite.css

privilege_offer.css

product_detail.css

product_selection.css

recently_viewed_products.css

related_products.css

return_slip.css

sample_block.css

search_block.css

see_also.css

sisley_beauty_solutions.css

sisley_home.css