Tools & Wizards About Us
blijdorp.nl screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

blijdorp.nl

Plan je bezoek aan een van de mooiste dierentuinen van Europa nu!

Page Load Speed

8.3 sec in total

First Response

601 ms

Resources Loaded

3.7 sec

Page Rendered

4 sec

blijdorp.nl screenshot

About Website

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

Beleef een onvergetelijke dag in Diergaarde Blijdorp, de best bezochte dierentuin van Nederland. Plan je bezoek vandaag en geniet van een avontuur in de natuur!

Visit blijdorp.nl

Key Findings

We analyzed Blijdorp.nl page load time and found that the first response time was 601 ms and then it took 7.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

blijdorp.nl performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value780 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

Network Requests Diagram

diergaardeblijdorp.nl

601 ms

nl

1025 ms

ef5d44b3e10c69bf.css

380 ms

3a1aa453f0126534.css

387 ms

80f19566bd28aa3f.css

333 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Blijdorp.nl, 28% (34 requests) were made to Diergaardeblijdorp.nl. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Diergaardeblijdorp.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 492.7 kB (4%)

Content Size

12.9 MB

After Optimization

12.4 MB

  • HTML
  • Images

In fact, the total size of Blijdorp.nl main page is 12.9 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 12.3 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 492.5 kB

  • Original 633.4 kB
  • After minification 632.9 kB
  • After compression 140.9 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 492.5 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 202 B

  • Original 12.3 MB
  • After minification 12.3 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. Blijdorp images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 28 (23%)

Requests Now

121

After Optimization

93

  • Images
  • JavaScript
  • CSS

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blijdorp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

diergaardeblijdorp.nl

diergaardeblijdorp.nl

601 ms

nl

nl

1025 ms

ef5d44b3e10c69bf.css

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380 ms

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387 ms

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333 ms

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764 ms

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486 ms

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430 ms

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1615 ms

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1669 ms

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1383 ms

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121 ms

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85 ms

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91 ms

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87 ms

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86 ms

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87 ms

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93 ms

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94 ms

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91 ms

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95 ms

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96 ms

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94 ms

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100 ms

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97 ms

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102 ms

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99 ms

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105 ms

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100 ms

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103 ms

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105 ms

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171 ms

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107 ms

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105 ms

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195 ms

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166 ms

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108 ms

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108 ms

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109 ms

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181 ms

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109 ms

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111 ms

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113 ms

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114 ms

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116 ms

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118 ms

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192 ms

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124 ms

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91 ms

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168 ms

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91 ms

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95 ms

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97 ms

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186 ms

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98 ms

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101 ms

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104 ms

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176 ms

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108 ms

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105 ms

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108 ms

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109 ms

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110 ms

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187 ms

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109 ms

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109 ms

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112 ms

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112 ms

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188 ms

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117 ms

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120 ms

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124 ms

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125 ms

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128 ms

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131 ms

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136 ms

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139 ms

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134 ms

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92 ms

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87 ms

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90 ms

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88 ms

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86 ms

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84 ms

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153 ms

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84 ms

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84 ms

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85 ms

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84 ms

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85 ms

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82 ms

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81 ms

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82 ms

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84 ms

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8a5be154-8377-4108-bf21-0c1549d5dfea_WhatsApp+Image+2024-04-09+at+15.02.04.jpeg

80 ms

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87 ms

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79 ms

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78 ms

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144 ms

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79 ms

Accessibility Review

blijdorp.nl accessibility score

71

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

Document doesn't have a <title> element

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

Best Practices

blijdorp.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

blijdorp.nl SEO score

58

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

Document doesn't have a <title> element

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 Blijdorp.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 Blijdorp.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

blijdorp.nl

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