Tools & Wizards About Us
restaurant-lasserre.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

restaurant-lasserre.com

Gourmet Restaurant in Paris France – Lasserre - Official Site

Page Load Speed

5 sec in total

First Response

330 ms

Resources Loaded

4.1 sec

Page Rendered

608 ms

restaurant-lasserre.com screenshot

About Website

Click here to check amazing Restaurant Lasserre content for France. Otherwise, check out these important facts you probably never knew about restaurant-lasserre.com

Lasserre is one of the best gastronomic and most romantic restaurants in Paris. Enjoy exceptional French food in a wonderful atmosphere. Magic awaits you ! Since 1942 in Paris

Visit restaurant-lasserre.com

Key Findings

We analyzed Restaurant-lasserre.com page load time and found that the first response time was 330 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

restaurant-lasserre.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

16/100

10%

LCP (Largest Contentful Paint)

Value22.2 s

0/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.102

89/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

restaurant-lasserre.com

330 ms

728 ms

ccm.base.css

102 ms

jquery.js

313 ms

ccm.base.js

295 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 73% of them (52 requests) were addressed to the original Restaurant-lasserre.com, 13% (9 requests) were made to Cdnjs.cloudflare.com and 6% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Restaurant-lasserre.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 80.5 kB (2%)

Content Size

4.7 MB

After Optimization

4.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Restaurant-lasserre.com main page is 4.7 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. 55% of websites need less resources to load. Images take 4.6 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 29.8 kB

  • Original 36.6 kB
  • After minification 28.2 kB
  • After compression 6.9 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 8.5 kB, which is 23% 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 29.8 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 48.3 kB

  • Original 4.6 MB
  • After minification 4.5 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. Restaurant Lasserre images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 2.1 kB

  • Original 63.3 kB
  • After minification 63.3 kB
  • After compression 61.2 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

-2%

Potential reduce by 401 B

  • Original 17.9 kB
  • After minification 17.9 kB
  • After compression 17.5 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. Restaurant-lasserre.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (33%)

Requests Now

60

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Restaurant Lasserre. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

restaurant-lasserre.com

restaurant-lasserre.com

330 ms

728 ms

ccm.base.css

ccm.base.css

102 ms

jquery.js

jquery.js

313 ms

ccm.base.js

ccm.base.js

295 ms

view.js

view.js

297 ms

view.js

view.js

298 ms

owl.carousel.min.css

owl.carousel.min.css

41 ms

owl.theme.min.css

owl.theme.min.css

45 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

65 ms

bootstrap-datepicker.css

bootstrap-datepicker.css

41 ms

lasserre.css

lasserre.css

404 ms

custom-style.css

custom-style.css

298 ms

bootstrap.min.js

bootstrap.min.js

45 ms

owl.carousel.min.js

owl.carousel.min.js

48 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

46 ms

bootstrap-datepicker.min.js

bootstrap-datepicker.min.js

51 ms

bootstrap-datepicker.fr.min.js

bootstrap-datepicker.fr.min.js

58 ms

parallax.js

parallax.js

390 ms

lasserre.js

lasserre.js

393 ms

analytics.js

analytics.js

19 ms

logo-small.png

logo-small.png

110 ms

logo-big.png

logo-big.png

109 ms

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247 ms

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284 ms

5fdfaa4a9d0a78148d5afd04ba6a7829_f1766.JPG

5fdfaa4a9d0a78148d5afd04ba6a7829_f1766.JPG

285 ms

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246 ms

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246 ms

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388 ms

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389 ms

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541 ms

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387 ms

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387 ms

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554 ms

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455 ms

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c062072ea28297314218c4efacb96cd3_f1183.jpg

551 ms

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553 ms

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577 ms

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651 ms

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5e615a67447d904e4abe37bb9a337964_f1216.jpg

738 ms

footer-logo-les-grandes.png

footer-logo-les-grandes.png

649 ms

collect

collect

14 ms

logo-brown.png

logo-brown.png

598 ms

js

js

176 ms

css

css

47 ms

font-awesome.min.css

font-awesome.min.css

44 ms

fancy-reservation-white.png

fancy-reservation-white.png

513 ms

fancy-gift-white.png

fancy-gift-white.png

537 ms

bg-opa-01.png

bg-opa-01.png

611 ms

crown-light-gray.png

crown-light-gray.png

609 ms

fancy-menu-gray.png

fancy-menu-gray.png

612 ms

fancy-letter-gray.png

fancy-letter-gray.png

611 ms

fancy-photo-gray.png

fancy-photo-gray.png

635 ms

fancy-reservation-gray.png

fancy-reservation-gray.png

698 ms

fancy-phone-gray.png

fancy-phone-gray.png

705 ms

fancy-clock-gray.png

fancy-clock-gray.png

708 ms

fancy-arrow-gray.png

fancy-arrow-gray.png

709 ms

fancy-bowtie-gray.png

fancy-bowtie-gray.png

711 ms

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102 ms

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102 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVQUwaEQXjM.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVQUwaEQXjM.woff

136 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

100 ms

Brandon-Grotesque-Black.woff

Brandon-Grotesque-Black.woff

626 ms

CrimsonText-Roman.woff

CrimsonText-Roman.woff

689 ms

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memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk5hkWV4exoMUdjFnmg.woff

151 ms

icomoon.woff

icomoon.woff

703 ms

LASSERRE_Salle_Jour_pano_large__plafond_c_Olivier_Buhagiar.jpg

LASSERRE_Salle_Jour_pano_large__plafond_c_Olivier_Buhagiar.jpg

1185 ms

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792 ms

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799 ms

footer-bg.jpg

footer-bg.jpg

625 ms

undefined

undefined

454 ms

Accessibility Review

restaurant-lasserre.com accessibility score

76

Accessibility Issues

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

restaurant-lasserre.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

restaurant-lasserre.com SEO score

90

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

restaurant-lasserre.com

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