Tools & Wizards About Us

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

amsterdamsevaargids.nl

De Amsterdamse Vaargids - Boot verhuur - Boot verkoop - Vaarboeken - Vaarkaarten - Vaartochten - Indys

Page Load Speed

1.8 sec in total

First Response

383 ms

Resources Loaded

1.3 sec

Page Rendered

140 ms

About Website

Welcome to amsterdamsevaargids.nl homepage info - get ready to check Amsterdamse Vaargids best content right away, or after learning these important things about amsterdamsevaargids.nl

Wij ontwikkelen vaargidsen en vaarkaarten voor u om uw verblijf aan boord en op de wal zo leuk en comfortabel mogelijk te maken. Varen door Nederland is boeiend en afwisselend. Via deze site kunt u ee...

Visit amsterdamsevaargids.nl

Key Findings

We analyzed Amsterdamsevaargids.nl page load time and found that the first response time was 383 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

amsterdamsevaargids.nl performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

amsterdamsevaargids.nl

383 ms

AC_OETags.js

295 ms

pageear.js

296 ms

amsterdamsevaargids_top_home.jpg

475 ms

menu_vaargidsen_on.gif

200 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 95% of them (19 requests) were addressed to the original Amsterdamsevaargids.nl, 5% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (581 ms) belongs to the original domain Amsterdamsevaargids.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 61.6 kB (11%)

Content Size

585.0 kB

After Optimization

523.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Amsterdamsevaargids.nl main page is 585.0 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. 20% of websites need less resources to load. Images take 511.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 34.6 kB

  • Original 40.1 kB
  • After minification 39.5 kB
  • After compression 5.4 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 34.6 kB or 86% of the original size.

Image Optimization

-3%

Potential reduce by 13.8 kB

  • Original 511.8 kB
  • After minification 498.0 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. Amsterdamse Vaargids images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 13.2 kB

  • Original 33.2 kB
  • After minification 26.2 kB
  • After compression 20.0 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 13.2 kB or 40% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

19

After Optimization

19

  • Images
  • JavaScript

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Amsterdamse Vaargids. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

amsterdamsevaargids.nl accessibility score

61

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

High

Links do not have a discernible name

Best Practices

amsterdamsevaargids.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

amsterdamsevaargids.nl SEO score

67

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Amsterdamsevaargids.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 Amsterdamsevaargids.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 description is not detected on the main page of Amsterdamse Vaargids. 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: