Tools & Wizards About Us

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

krys.com

Opticien Krys : Lunettes, Lunettes de soleil et Lentilles

Page Load Speed

9.8 sec in total

First Response

2.3 sec

Resources Loaded

5.8 sec

Page Rendered

1.7 sec

About Website

Welcome to krys.com homepage info - get ready to check Krys best content for France right away, or after learning these important things about krys.com

Retrouvez chez les Opticiens KRYS toutes les grandes marques de lunettes de vue, de lunettes de soleil, de lentilles de contact et d'appareils auditifs.

Visit krys.com

Key Findings

We analyzed Krys.com page load time and found that the first response time was 2.3 sec and then it took 7.6 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

krys.com performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value600 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

www.krys.com

2262 ms

bootstrap.min.css

274 ms

bootstrap-theme.min.css

126 ms

swiper.min.css

125 ms

myopia-simulator.css

128 ms

Our browser made a total of 118 requests to load all elements on the main page. We found that 41% of them (48 requests) were addressed to the original Krys.com, 59% (70 requests) were made to Krys-krys-storage.omn.proximis.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Krys.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 723.3 kB (10%)

Content Size

7.1 MB

After Optimization

6.3 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Krys.com main page is 7.1 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. 60% of websites need less resources to load. Images take 6.2 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 667.0 kB

  • Original 760.0 kB
  • After minification 692.6 kB
  • After compression 93.0 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 667.0 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 30.0 kB

  • Original 6.2 MB
  • After minification 6.2 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. Krys images are well optimized though.

JavaScript Optimization

-26%

Potential reduce by 26.3 kB

  • Original 100.9 kB
  • After minification 100.9 kB
  • After compression 74.6 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 26.3 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (32%)

Requests Now

110

After Optimization

75

  • Images
  • JavaScript
  • CSS

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Krys. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

krys.com accessibility score

91

Accessibility Issues

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-*] attributes do not match their roles

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

Links do not have a discernible name

Best Practices

krys.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

krys.com SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

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

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