Tools & Wizards About Us
seaworld.nl screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

seaworld.nl

Radioactive - seaworld.nl is mogelijk beschikbaar.

Page Load Speed

1.5 sec in total

First Response

366 ms

Resources Loaded

972 ms

Page Rendered

124 ms

seaworld.nl screenshot

About Website

Visit seaworld.nl now to see the best up-to-date Seaworld content and also check out these interesting facts you probably never knew about seaworld.nl

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Visit seaworld.nl

Key Findings

We analyzed Seaworld.nl page load time and found that the first response time was 366 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 20% of websites can load faster.

Performance Metrics

seaworld.nl performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value6,080 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

seaworld.nl

366 ms

mm_travel2.css

123 ms

untitled.png

606 ms

mm_spacer.gif

264 ms

index.html

138 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that all of those requests were addressed to Seaworld.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (606 ms) belongs to the original domain Seaworld.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.4 kB (6%)

Content Size

123.1 kB

After Optimization

115.7 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Seaworld.nl main page is 123.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 114.0 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 5.1 kB

  • Original 7.1 kB
  • After minification 6.5 kB
  • After compression 2.0 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 5.1 kB or 72% of the original size.

Image Optimization

-1%

Potential reduce by 718 B

  • Original 114.0 kB
  • After minification 113.2 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. Seaworld images are well optimized though.

CSS Optimization

-76%

Potential reduce by 1.5 kB

  • Original 2.0 kB
  • After minification 1.6 kB
  • After compression 486 B

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. Seaworld.nl needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 76% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • AJAX
  • Images
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seaworld. According to our analytics all requests are already optimized.

Network Requests Diagram

seaworld.nl

seaworld.nl

366 ms

mm_travel2.css

mm_travel2.css

123 ms

untitled.png

untitled.png

606 ms

mm_spacer.gif

mm_spacer.gif

264 ms

index.html

index.html

138 ms

mm_arrow.gif

mm_arrow.gif

234 ms

onderhoud.html

onderhoud.html

236 ms

Accessibility Review

seaworld.nl accessibility score

97

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.

Best Practices

seaworld.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

SEO Factors

seaworld.nl SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seaworld.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Seaworld.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

seaworld.nl

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