Access booktrader.nl. booktrader.nl

Report Summary

About Website

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

Tweedehands boeken: kopen en (gratis) verkopen van tweedehands boeken, nieuwe boeken op booktrader.nl,online marktplaats voor verkopen van boeken

Visit booktrader.nl

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

booktrader.nl

921 ms

style.css

1205 ms

book.js

661 ms

scripts.js

670 ms

urchin.js

8 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 31% of them (28 requests) were addressed to the original Booktrader.nl, 47% (42 requests) were made to Bruna.nl and 9% (8 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Booktrader.nl.

Content Size

320.0 kB

After Optimization

253.5 kB

In fact, the total size of Booktrader.nl main page is 320.0 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. 35% of websites need less resources to load. Images take 219.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 49.0 kB

Original 61.8 kB
After minification 51.1 kB
After compression 12.8 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. This page needs HTML code to be minified as it can gain 10.8 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 49.0 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 9.7 kB

Original 219.4 kB
After minification 209.6 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. Booktrader images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 7.8 kB

Original 18.4 kB
After minification 17.9 kB
After compression 10.6 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 7.8 kB or 42% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

Original 20.5 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.

Requests Now

After Optimization

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Booktrader. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

NL
Language Claimed

NL
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Booktrader.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 Booktrader.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

booktrader.nl

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

booktrader.nl

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)