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slik.eu screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

slik.eu

Fullservice internetbureau Rotterdam voor websites en webapplicaties | Slik

Page Load Speed

3.6 sec in total

First Response

273 ms

Resources Loaded

2.7 sec

Page Rendered

612 ms

slik.eu screenshot

About Website

Click here to check amazing Slik content. Otherwise, check out these important facts you probably never knew about slik.eu

Wij zijn Internetbureau Slik. Een internetbureau in Rotterdam voor bijzondere websites en webapplicaties. Fullservice, met passie voor goed werk. Wat gaat u er vandaag aan doen?

Visit slik.eu

Key Findings

We analyzed Slik.eu page load time and found that the first response time was 273 ms and then it took 3.3 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

slik.eu performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value1,830 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

slik.eu

273 ms

slik.eu

389 ms

css

68 ms

font-awesome.min.css

35 ms

modernizr.js

313 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 73% of them (29 requests) were addressed to the original Slik.eu, 10% (4 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Slik.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 271.7 kB (22%)

Content Size

1.2 MB

After Optimization

959.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Slik.eu main page is 1.2 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 15.9 kB

  • Original 21.1 kB
  • After minification 16.5 kB
  • After compression 5.1 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. This page needs HTML code to be minified as it can gain 4.6 kB, which is 22% 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 15.9 kB or 76% of the original size.

Image Optimization

-16%

Potential reduce by 175.6 kB

  • Original 1.1 MB
  • After minification 903.8 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, Slik needs image optimization as it can save up to 175.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-57%

Potential reduce by 59.5 kB

  • Original 103.9 kB
  • After minification 100.6 kB
  • After compression 44.5 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 59.5 kB or 57% of the original size.

CSS Optimization

-77%

Potential reduce by 20.6 kB

  • Original 26.7 kB
  • After minification 26.7 kB
  • After compression 6.1 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. Slik.eu needs all CSS files to be minified and compressed as it can save up to 20.6 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (22%)

Requests Now

32

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slik. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

slik.eu

slik.eu

273 ms

slik.eu

slik.eu

389 ms

css

css

68 ms

font-awesome.min.css

font-awesome.min.css

35 ms

modernizr.js

modernizr.js

313 ms

jquery-2.0.1.min.js

jquery-2.0.1.min.js

44 ms

594 ms

jquery.waypoints.min.js

jquery.waypoints.min.js

355 ms

plugins.js

plugins.js

353 ms

main.js

main.js

309 ms

414 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

303 ms

analytics.js

analytics.js

58 ms

logo-white.svg

logo-white.svg

441 ms

header-home-poster.png

header-home-poster.png

1212 ms

dot-pattern.png

dot-pattern.png

423 ms

enheidsworst.png

enheidsworst.png

522 ms

lego.png

lego.png

447 ms

kosten.png

kosten.png

541 ms

beveiliging.png

beveiliging.png

792 ms

ondersteuning.png

ondersteuning.png

818 ms

Portfolio-Internetbureau-Slot-Loevestein-ipad-800x500-c-default.jpg

Portfolio-Internetbureau-Slot-Loevestein-ipad-800x500-c-default.jpg

907 ms

globe.svg

globe.svg

788 ms

tag.svg

tag.svg

813 ms

app.svg

app.svg

1067 ms

Portfolio-Internetbureau-Slik-Boskalis-iMac-800x500-c-default.jpg

Portfolio-Internetbureau-Slik-Boskalis-iMac-800x500-c-default.jpg

1164 ms

icon-phone-white.svg

icon-phone-white.svg

1081 ms

icon-marker-white.svg

icon-marker-white.svg

1091 ms

spreekuur.svg

spreekuur.svg

1196 ms

arrow.png

arrow.png

1364 ms

icon-tw.svg

icon-tw.svg

1347 ms

icon-ln.svg

icon-ln.svg

1356 ms

icon-fb.svg

icon-fb.svg

1435 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

178 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

191 ms

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

195 ms

Jzo62I39jc0gQRrbndN6nfesZW2xOQ-xsNqO47m55DA.ttf

Jzo62I39jc0gQRrbndN6nfesZW2xOQ-xsNqO47m55DA.ttf

191 ms

collect

collect

164 ms

collect

collect

53 ms

ga-audiences

ga-audiences

31 ms

Accessibility Review

slik.eu accessibility score

84

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

Heading elements are not in a sequentially-descending order

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

Best Practices

slik.eu 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

slik.eu SEO score

90

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

High

Tap targets are not sized appropriately

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 Slik.eu 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 Slik.eu 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

slik.eu

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