Tools & Wizards About Us
lavoute.org screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

lavoute.org

Librairie de la Voûte - La Librairie du Généalogiste - La librairie du généalogiste - La seule librairie spécialisée en France

Page Load Speed

1.9 sec in total

First Response

265 ms

Resources Loaded

1.2 sec

Page Rendered

469 ms

lavoute.org screenshot

About Website

Visit lavoute.org now to see the best up-to-date La Voute content for France and also check out these interesting facts you probably never knew about lavoute.org

Localisée à Paris, la librairie est spécialisée en généalogie, histoire, héraldique, ... Découvrez les activités de la librairie (expos, concours, ...

Visit lavoute.org

Key Findings

We analyzed Lavoute.org page load time and found that the first response time was 265 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

lavoute.org performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

lavoute.org

265 ms

style_screen.css

81 ms

m.js

6 ms

cookiechoices.js

158 ms

arbre-genealogique.jpg

320 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 68% of them (19 requests) were addressed to the original Lavoute.org, 21% (6 requests) were made to Imprimez-vos-arbres.com and 4% (1 request) were made to Perso.estat.com. The less responsive or slowest element that took the longest time to load (786 ms) relates to the external source Imprimez-vos-arbres.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 75.6 kB (4%)

Content Size

1.9 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lavoute.org main page is 1.9 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. 30% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 31.7 kB

  • Original 41.1 kB
  • After minification 34.6 kB
  • After compression 9.4 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 6.5 kB, which is 16% 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 31.7 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 38.9 kB

  • Original 1.9 MB
  • After minification 1.8 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. La Voute images are well optimized though.

JavaScript Optimization

-32%

Potential reduce by 583 B

  • Original 1.8 kB
  • After minification 1.8 kB
  • After compression 1.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 583 B or 32% of the original size.

CSS Optimization

-40%

Potential reduce by 4.5 kB

  • Original 11.0 kB
  • After minification 11.0 kB
  • After compression 6.6 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. Lavoute.org needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 40% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (19%)

Requests Now

26

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of La Voute. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

lavoute.org

lavoute.org

265 ms

style_screen.css

style_screen.css

81 ms

m.js

m.js

6 ms

cookiechoices.js

cookiechoices.js

158 ms

arbre-genealogique.jpg

arbre-genealogique.jpg

320 ms

drapeau-france.png

drapeau-france.png

437 ms

rss.php

rss.php

534 ms

Noyer-large.jpg

Noyer-large.jpg

617 ms

mini-arbre-genealogique-2011-sept.jpg

mini-arbre-genealogique-2011-sept.jpg

612 ms

arbre-roue-9-generations.jpg

arbre-roue-9-generations.jpg

702 ms

imagesarbres.jpg

imagesarbres.jpg

472 ms

eventail.jpg

eventail.jpg

786 ms

background.gif

background.gif

83 ms

flag_uk.gif

flag_uk.gif

143 ms

flag_spain.gif

flag_spain.gif

155 ms

flag_france.gif

flag_france.gif

180 ms

flag_germany.gif

flag_germany.gif

181 ms

header.gif

header.gif

180 ms

covid-librairie.jpg

covid-librairie.jpg

344 ms

insee.png

insee.png

303 ms

logo_big.png

logo_big.png

309 ms

discount-40-png.jpg

discount-40-png.jpg

387 ms

catalogue2024.jpg

catalogue2024.jpg

560 ms

btn_numero-detail-swf-activ1.jpg

btn_numero-detail-swf-activ1.jpg

326 ms

CouvertureGe-Mag404-405.jpg

CouvertureGe-Mag404-405.jpg

612 ms

feuilletercenumero.png

feuilletercenumero.png

386 ms

Couvmarechaux_16%20x%2024.jpg

Couvmarechaux_16%20x%2024.jpg

729 ms

style_print.css

style_print.css

80 ms

Accessibility Review

lavoute.org accessibility score

56

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

lavoute.org best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

lavoute.org SEO score

58

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

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

    N/A

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lavoute.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Lavoute.org 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

lavoute.org

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