Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

survoldefrance.fr

Photo aérienne de France : La France vue du ciel - Survol de France

Page Load Speed

3.2 sec in total

First Response

360 ms

Resources Loaded

2.6 sec

Page Rendered

179 ms

survoldefrance.fr screenshot

About Website

Visit survoldefrance.fr now to see the best up-to-date Survol De France content for France and also check out these interesting facts you probably never knew about survoldefrance.fr

Survol de France est une banque de photographie aérienne permettant de visiter la france vue du ciel. Les photos sont classées par département, lieu, photographe et coordonnées GPS. Elles sont prises ...

Visit survoldefrance.fr

Key Findings

We analyzed Survoldefrance.fr page load time and found that the first response time was 360 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

survoldefrance.fr performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.028

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

survoldefrance.fr

360 ms

www.survoldefrance.fr

821 ms

style.css

188 ms

jquery-1.7.1.min.js

461 ms

jquery.js

830 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 89% of them (17 requests) were addressed to the original Survoldefrance.fr, 5% (1 request) were made to Perso0.free.fr and 5% (1 request) were made to Logv31.xiti.com. The less responsive or slowest element that took the longest time to load (830 ms) belongs to the original domain Survoldefrance.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 389.6 kB (62%)

Content Size

630.7 kB

After Optimization

241.1 kB

In fact, the total size of Survoldefrance.fr main page is 630.7 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. 15% of websites need less resources to load. Javascripts take 432.0 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 14.6 kB

  • Original 19.6 kB
  • After minification 17.5 kB
  • After compression 4.9 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 2.1 kB, which is 11% 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 14.6 kB or 75% of the original size.

Image Optimization

-11%

Potential reduce by 18.4 kB

  • Original 166.0 kB
  • After minification 147.6 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, Survol De France needs image optimization as it can save up to 18.4 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 345.9 kB

  • Original 432.0 kB
  • After minification 291.1 kB
  • After compression 86.1 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 345.9 kB or 80% of the original size.

CSS Optimization

-81%

Potential reduce by 10.6 kB

  • Original 13.1 kB
  • After minification 11.2 kB
  • After compression 2.5 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. Survoldefrance.fr needs all CSS files to be minified and compressed as it can save up to 10.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (29%)

Requests Now

17

After Optimization

12

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Survol De France. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

survoldefrance.fr accessibility score

67

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.

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

Form elements do not have associated labels

High

<object> elements do not have alternate text

Best Practices

survoldefrance.fr best practices score

75

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

SEO Factors

survoldefrance.fr SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Survoldefrance.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that Survoldefrance.fr 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

Open Graph description is not detected on the main page of Survol De France. 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: