Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

dezaanseschans.nl

De Zaanse Schans | Hollandse ambachten, molens & musea

Page Load Speed

28.6 sec in total

First Response

1.8 sec

Resources Loaded

23.7 sec

Page Rendered

3.2 sec

dezaanseschans.nl screenshot

About Website

Visit dezaanseschans.nl now to see the best up-to-date De Zaanse Schans content for Netherlands and also check out these interesting facts you probably never knew about dezaanseschans.nl

Zaanse Schans mooi, uniek en boordevol molens, ambachten en musea Ontdek Openingstijden Een cultureel erfgoed dorp aan de Zaan De Zaanse Schans is een vrij toegankelijk woon-werkgebied anno 1850. Onda...

Visit dezaanseschans.nl

Key Findings

We analyzed Dezaanseschans.nl page load time and found that the first response time was 1.8 sec and then it took 26.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

dezaanseschans.nl performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value18.3 s

0/100

25%

SI (Speed Index)

Value22.3 s

0/100

10%

TBT (Total Blocking Time)

Value27,980 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.102

89/100

15%

TTI (Time to Interactive)

Value40.4 s

0/100

10%

Network Requests Diagram

www.dezaanseschans.nl

1759 ms

gtm.js

105 ms

webfont.js

82 ms

wp-emoji-release.min.js

357 ms

admin.css

505 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 49% of them (69 requests) were addressed to the original Dezaanseschans.nl, 8% (12 requests) were made to Scontent-ams4-1.cdninstagram.com and 7% (10 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Tripadvisor.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 746.4 kB (16%)

Content Size

4.6 MB

After Optimization

3.8 MB

In fact, the total size of Dezaanseschans.nl main page is 4.6 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. Only a small number of websites need less resources to load. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 348.6 kB

  • Original 401.5 kB
  • After minification 397.6 kB
  • After compression 52.8 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 348.6 kB or 87% of the original size.

Image Optimization

-1%

Potential reduce by 34.5 kB

  • Original 3.4 MB
  • After minification 3.3 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. De Zaanse Schans images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 41.7 kB

  • Original 316.5 kB
  • After minification 316.5 kB
  • After compression 274.8 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 41.7 kB or 13% of the original size.

CSS Optimization

-64%

Potential reduce by 321.5 kB

  • Original 503.2 kB
  • After minification 503.0 kB
  • After compression 181.7 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. Dezaanseschans.nl needs all CSS files to be minified and compressed as it can save up to 321.5 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 75 (56%)

Requests Now

135

After Optimization

60

The browser has sent 135 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Zaanse Schans. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dezaanseschans.nl accessibility score

91

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

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

Links do not have a discernible name

Best Practices

dezaanseschans.nl 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

High

Missing source maps for large first-party JavaScript

SEO Factors

dezaanseschans.nl SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Dezaanseschans.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 Dezaanseschans.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 De Zaanse Schans. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: