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Report Summary

About Website

Welcome to optiek.nl homepage info - get ready to check Optiek best content for Netherlands right away, or after learning these important things about optiek.nl

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name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

optiek.nl

1196 ms

css

159 ms

css

172 ms

boostrap.css

1038 ms

styles.css

770 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Optiek.nl, 44% (27 requests) were made to Af2c9bb0e8fe2fba5f22-90306227134f667687d3d1e5365174a2.ssl.cf3.rackcdn.com and 16% (10 requests) were made to 9acf00342a492862c757-ad4f1c77848b345761e40e6bd7a66488.ssl.cf3.rackcdn.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Af2c9bb0e8fe2fba5f22-90306227134f667687d3d1e5365174a2.ssl.cf3.rackcdn.com.

Content Size

4.3 MB

After Optimization

3.9 MB

In fact, the total size of Optiek.nl main page is 4.3 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. 40% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 47.7 kB

Original 59.0 kB
After minification 59.0 kB
After compression 11.3 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 47.7 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 49.7 kB

Original 3.8 MB
After minification 3.7 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. Optiek images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 143.9 kB

Original 213.8 kB
After minification 201.3 kB
After compression 70.0 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 143.9 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 216.9 kB

Original 257.8 kB
After minification 250.0 kB
After compression 40.9 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. Optiek.nl needs all CSS files to be minified and compressed as it can save up to 216.9 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optiek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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/).

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 Optiek.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 Optiek.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

optiek.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Ruim 30 Optiekdomeinen Nu Te Koop

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)