Tools & Wizards About Us
rac-nl.com screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

rac-nl.com

De Rotterdamsche Aeroclub - rac-nl.com

Page Load Speed

6 sec in total

First Response

2.1 sec

Resources Loaded

3.7 sec

Page Rendered

176 ms

rac-nl.com screenshot

About Website

Welcome to rac-nl.com homepage info - get ready to check Rac Nl best content right away, or after learning these important things about rac-nl.com

Vliegclub Aeroclub RAC vliegen PPL

Visit rac-nl.com

Key Findings

We analyzed Rac-nl.com page load time and found that the first response time was 2.1 sec and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

rac-nl.com performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

rac-nl.com

2102 ms

nivo-slider.css

106 ms

pure.css

202 ms

style.css

176 ms

jquery.min.js

7 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 91% of them (31 requests) were addressed to the original Rac-nl.com, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Rac-nl.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 564.4 kB (41%)

Content Size

1.4 MB

After Optimization

820.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rac-nl.com main page is 1.4 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. 35% of websites need less resources to load. Images take 688.2 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 8.3 kB

  • Original 12.4 kB
  • After minification 11.7 kB
  • After compression 4.1 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 8.3 kB or 67% of the original size.

Image Optimization

-11%

Potential reduce by 77.7 kB

  • Original 688.2 kB
  • After minification 610.5 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. Obviously, Rac Nl needs image optimization as it can save up to 77.7 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

-68%

Potential reduce by 415.2 kB

  • Original 610.4 kB
  • After minification 582.1 kB
  • After compression 195.1 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 415.2 kB or 68% of the original size.

CSS Optimization

-86%

Potential reduce by 63.2 kB

  • Original 73.5 kB
  • After minification 57.7 kB
  • After compression 10.3 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. Rac-nl.com needs all CSS files to be minified and compressed as it can save up to 63.2 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (55%)

Requests Now

33

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rac Nl. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rac-nl.com

rac-nl.com

2102 ms

nivo-slider.css

nivo-slider.css

106 ms

pure.css

pure.css

202 ms

style.css

style.css

176 ms

jquery.min.js

jquery.min.js

7 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

180 ms

mootools-core.js

mootools-core.js

278 ms

core.js

core.js

183 ms

mootools-more.js

mootools-more.js

476 ms

jquery.min.js

jquery.min.js

354 ms

jquery-noconflict.js

jquery-noconflict.js

273 ms

jquery-migrate.min.js

jquery-migrate.min.js

300 ms

caption.js

caption.js

299 ms

script.js

script.js

378 ms

system.css

system.css

400 ms

general.css

general.css

384 ms

template.css

template.css

522 ms

jquery.js

jquery.js

611 ms

script.js

script.js

520 ms

system.css

system.css

97 ms

ga.js

ga.js

42 ms

page.jpeg

page.jpeg

427 ms

header.png

header.png

101 ms

blockbullets.png

blockbullets.png

110 ms

bitterballen.jpg

bitterballen.jpg

108 ms

loading.gif

loading.gif

98 ms

slide%201.png

slide%201.png

349 ms

slide%202.png

slide%202.png

613 ms

slide%203.png

slide%203.png

458 ms

facebook_32.png

facebook_32.png

199 ms

fto%20logo.png

fto%20logo.png

277 ms

rac04.jpg

rac04.jpg

951 ms

postbullets.png

postbullets.png

335 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

rac-nl.com accessibility score

89

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

[lang] attributes do not have a valid value

Best Practices

rac-nl.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

rac-nl.com SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

rac-nl.com

Open Graph description is not detected on the main page of Rac Nl. 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: