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lecun.com screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

lecun.com

les Le Cun

Page Load Speed

341 ms in total

First Response

67 ms

Resources Loaded

125 ms

Page Rendered

149 ms

lecun.com screenshot

About Website

Welcome to lecun.com homepage info - get ready to check Le Cun best content for United States right away, or after learning these important things about lecun.com

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Key Findings

We analyzed Lecun.com page load time and found that the first response time was 67 ms and then it took 274 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

lecun.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

lecun.com

67 ms

menu-bg.jpeg

10 ms

djvu_badge-140x49.gif

29 ms

banner.gif

20 ms

name.gif

18 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Lecun.com and no external sources were called. The less responsive or slowest element that took the longest time to load (67 ms) belongs to the original domain Lecun.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.6 kB (41%)

Content Size

11.2 kB

After Optimization

6.7 kB

  • HTML
  • Images

In fact, the total size of Lecun.com main page is 11.2 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. Only 5% of websites need less resources to load. HTML takes 6.7 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 4.6 kB

  • Original 6.7 kB
  • After minification 6.6 kB
  • After compression 2.2 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 4.6 kB or 68% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 4.5 kB
  • After minification 4.5 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. Le Cun images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Le Cun. According to our analytics all requests are already optimized.

Network Requests Diagram

lecun.com

lecun.com

67 ms

menu-bg.jpeg

menu-bg.jpeg

10 ms

djvu_badge-140x49.gif

djvu_badge-140x49.gif

29 ms

banner.gif

banner.gif

20 ms

name.gif

name.gif

18 ms

email.gif

email.gif

17 ms

Accessibility Review

lecun.com accessibility score

63

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

lecun.com best practices score

75

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

Serves images with low resolution

SEO Factors

lecun.com SEO score

69

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lecun.com 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 Lecun.com main page’s claimed encoding is iso-8859-1. 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

lecun.com

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