Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

hotellibrary.nl

Hotel Library Amsterdam | City Centre Hotel - Official website

Page Load Speed

5.9 sec in total

First Response

371 ms

Resources Loaded

2.9 sec

Page Rendered

2.6 sec

About Website

Click here to check amazing Hotel Library content. Otherwise, check out these important facts you probably never knew about hotellibrary.nl

Hotel Library Amsterdam is perfectly positioned in the heart of the city center. The central station, Nieuwmarkt and Red Light District are with 10 minutes walk, making it the perfect base to explore ...

Visit hotellibrary.nl

Key Findings

We analyzed Hotellibrary.nl page load time and found that the first response time was 371 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

hotellibrary.nl performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.882

3/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

hotellibrary.nl

371 ms

hotellibrary.nl

571 ms

css2

39 ms

063ee82.css

271 ms

2349f9b.css

369 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 17% of them (18 requests) were addressed to the original Hotellibrary.nl, 73% (77 requests) were made to Winhotelsgroup.nl and 9% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Winhotelsgroup.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 541.7 kB (9%)

Content Size

6.4 MB

After Optimization

5.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hotellibrary.nl main page is 6.4 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 5.4 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 505.4 kB

  • Original 564.0 kB
  • After minification 561.2 kB
  • After compression 58.7 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 505.4 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 498 B

  • Original 5.4 MB
  • After minification 5.4 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. Hotel Library images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 35.8 kB

  • Original 338.9 kB
  • After minification 338.9 kB
  • After compression 303.1 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 35.8 kB or 11% of the original size.

CSS Optimization

-0%

Potential reduce by 66 B

  • Original 28.4 kB
  • After minification 28.4 kB
  • After compression 28.3 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. Hotellibrary.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (7%)

Requests Now

94

After Optimization

87

  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hotel Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

hotellibrary.nl accessibility score

67

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Heading elements are not in a sequentially-descending order

Best Practices

hotellibrary.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

hotellibrary.nl SEO score

71

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hotellibrary.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Hotellibrary.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 Hotel Library. 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: