Access hotellibrary.nl. Hotel Library Amsterdam | City Centre Hotel

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%

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.

Content Size

6.4 MB

After Optimization

5.8 MB

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 Now

After Optimization

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.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Links are not crawlable

High

robots.txt is not valid

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/).

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

hotellibrary.nl

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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Hotel Library Amsterdam | City Centre Hotel - Official website

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

hotellibrary.nl

hotellibrary.nl

css2

063ee82.css

2349f9b.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

hotellibrary.nl

hotellibrary.nl

css2

063ee82.css

2349f9b.css

cd651da.css

my-booking-logo.svg

logo.1b825da.svg

hotel-library.a490b27.jpg

best-rate.cc10fdf.svg

duif.2612b48.png

hotel-library-amsterdam-2mm.jpg

single-room-1.jpg

single-room-2.jpg

single-room-3.jpg

single-room-4.jpg

single-room-5.jpg

single-room-6.jpg

single-room-7.jpg

souterrain-single-room-1.jpg

souterrain-single-room-2.jpg

souterrain-single-room-3.jpg

souterrain-single-room-4.jpg

souterrain-single-room-5.jpg

souterrain-single-room-6.jpg

souterrain-double-room-1.jpg

souterrain-double-room-2.jpg

souterrain-double-room-3.jpg

souterrain-double-room-4.jpg

small-double-room-1.jpg

small-double-room-2.jpg

small-double-room-3.jpg

small-double-room-4.jpg

small-double-room-5.jpg

small-double-room-6.jpg

standard-double-room-1.jpg

standard-double-room-2.jpg

standard-double-room-3.jpg

standard-double-room-4.jpg

standard-double-room-5.jpg

standard-double-room-6.jpg

standard-double-room-7.jpg

twin-room-1.jpg