Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

gunnars.fr

Gunnar Lunettes anti-lumière bleue et anti-fatigue pour les écrans

Page Load Speed

7.2 sec in total

First Response

212 ms

Resources Loaded

5.7 sec

Page Rendered

1.3 sec

About Website

Click here to check amazing Gunnar S content for France. Otherwise, check out these important facts you probably never knew about gunnars.fr

Lunettes anti lumière bleue pour écrans Gunnar Optiks, la meilleure technologie depuis 2007. Nos lunettes réduisent la fatigue visuelle et la sécheresse des yeux. Protégez vos yeux des écrans. Lunette...

Visit gunnars.fr

Key Findings

We analyzed Gunnars.fr page load time and found that the first response time was 212 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

gunnars.fr performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.0 s

0/100

25%

SI (Speed Index)

Value24.1 s

0/100

10%

TBT (Total Blocking Time)

Value4,400 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.028

100/100

15%

TTI (Time to Interactive)

Value34.1 s

0/100

10%

Network Requests Diagram

gunnars.fr

212 ms

gunnars.fr

302 ms

www.gunnar.fr

1710 ms

calendar.css

539 ms

styles-m.css

739 ms

Our browser made a total of 218 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original Gunnars.fr, 81% (176 requests) were made to Gunnar.fr and 5% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Cl.avis-verifies.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (51%)

Content Size

2.1 MB

After Optimization

1.1 MB

In fact, the total size of Gunnars.fr main page is 2.1 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. Only a small number of websites need less resources to load. HTML takes 995.9 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 909.5 kB

  • Original 995.9 kB
  • After minification 866.7 kB
  • After compression 86.5 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 129.2 kB, which is 13% 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 909.5 kB or 91% of the original size.

Image Optimization

-33%

Potential reduce by 65.9 kB

  • Original 201.7 kB
  • After minification 135.8 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, Gunnar S needs image optimization as it can save up to 65.9 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 94.7 kB

  • Original 671.6 kB
  • After minification 667.9 kB
  • After compression 576.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 94.7 kB or 14% of the original size.

CSS Optimization

-6%

Potential reduce by 15.6 kB

  • Original 272.0 kB
  • After minification 272.0 kB
  • After compression 256.4 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. Gunnars.fr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 124 (75%)

Requests Now

166

After Optimization

42

The browser has sent 166 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gunnar S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 110 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

gunnars.fr accessibility score

83

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 input fields do not have accessible names

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Heading elements are not in a sequentially-descending order

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

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

Impact

Issue

High

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

Best Practices

gunnars.fr best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

gunnars.fr SEO score

92

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

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 Gunnars.fr 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 Gunnars.fr 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 Gunnar S. 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: