Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 62

    SEO

    Google-friendlier than
    32% of websites

zilverendolfijn.nl

Zilveren Dolfijn

Page Load Speed

1.3 sec in total

First Response

228 ms

Resources Loaded

961 ms

Page Rendered

132 ms

zilverendolfijn.nl screenshot

About Website

Click here to check amazing Zilveren Dolfijn content for Netherlands. Otherwise, check out these important facts you probably never knew about zilverendolfijn.nl

Strip-encyclopedie de Zilveren Dolfijn

Visit zilverendolfijn.nl

Key Findings

We analyzed Zilverendolfijn.nl page load time and found that the first response time was 228 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

zilverendolfijn.nl performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.6 s

99/100

25%

SI (Speed Index)

Value1.6 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

zilverendolfijn.nl

228 ms

www.zilverendolfijn.nl

244 ms

backgr8.gif

190 ms

dolfijn3.jpg

283 ms

muur1.jpg

195 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that all of those requests were addressed to Zilverendolfijn.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (485 ms) belongs to the original domain Zilverendolfijn.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 9.9 kB (22%)

Content Size

45.1 kB

After Optimization

35.2 kB

In fact, the total size of Zilverendolfijn.nl main page is 45.1 kB. 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 10% of websites need less resources to load. Images take 34.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 8.4 kB

  • Original 10.8 kB
  • After minification 10.3 kB
  • After compression 2.4 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 8.4 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 1.5 kB

  • Original 34.3 kB
  • After minification 32.8 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. Zilveren Dolfijn images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

15

After Optimization

15

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zilveren Dolfijn. According to our analytics all requests are already optimized.

Accessibility Review

zilverendolfijn.nl accessibility score

76

Accessibility Issues

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

Image elements do not have [alt] attributes

Best Practices

zilverendolfijn.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

zilverendolfijn.nl SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zilverendolfijn.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 Zilverendolfijn.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Zilveren Dolfijn. 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: