Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

wffr.nl

Home - WFFR.nl | Wildlife Film Festival Rotterdam

Page Load Speed

4 sec in total

First Response

366 ms

Resources Loaded

2.7 sec

Page Rendered

951 ms

wffr.nl screenshot

About Website

Welcome to wffr.nl homepage info - get ready to check WFFR best content right away, or after learning these important things about wffr.nl

WFFR 2024 Rotterdam: 4 - 10 novWageningen: 13 - 17 novOnline: 5 nov - 5 dec Films in de bioscoop Online films WFFR '23 films van WFFR 2023 Schrijf je in voor onze nieuwsbrief

Visit wffr.nl

Key Findings

We analyzed Wffr.nl page load time and found that the first response time was 366 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

wffr.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value16.5 s

0/100

25%

SI (Speed Index)

Value11.5 s

5/100

10%

TBT (Total Blocking Time)

Value900 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.458

19/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

wffr.nl

366 ms

wffr.nl

563 ms

style.min.css

95 ms

09d35fdd0937a77406af1b117bb26ada.min.css

443 ms

jquery.min.js

368 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 Wffr.nl, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Wffr.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 185.6 kB (3%)

Content Size

6.4 MB

After Optimization

6.2 MB

In fact, the total size of Wffr.nl main page is 6.4 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. 45% of websites need less resources to load. Images take 6.0 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 105.9 kB

  • Original 123.8 kB
  • After minification 121.8 kB
  • After compression 17.9 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. 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 105.9 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 40.1 kB

  • Original 6.0 MB
  • After minification 6.0 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. WFFR images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 35.3 kB

  • Original 242.4 kB
  • After minification 242.4 kB
  • After compression 207.0 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 35.3 kB or 15% of the original size.

CSS Optimization

-23%

Potential reduce by 4.3 kB

  • Original 18.8 kB
  • After minification 18.8 kB
  • After compression 14.5 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. Wffr.nl needs all CSS files to be minified and compressed as it can save up to 4.3 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (13%)

Requests Now

31

After Optimization

27

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of WFFR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

wffr.nl accessibility score

94

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Best Practices

wffr.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

wffr.nl SEO score

93

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

Open Graph data is detected on the main page of WFFR. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: