8 sec in total
1.5 sec
6.1 sec
363 ms
Welcome to devriesboeken.nl homepage info - get ready to check De Vries Boeken best content for Netherlands right away, or after learning these important things about devriesboeken.nl
De Vries Van Stockum is een onafhankelijke boekhandel met winkels in Den Haag en Haarlem - én een webwinkel. Wij verkopen bestsellers en must reads. Maar ook de weg naar minder bekende boeken wijzen w...
Visit devriesboeken.nlWe analyzed Devriesboeken.nl page load time and found that the first response time was 1.5 sec and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
devriesboeken.nl performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value7.2 s
5/100
25%
Value11.8 s
4/100
10%
Value1,740 ms
10/100
30%
Value0.141
78/100
15%
Value17.8 s
4/100
10%
1540 ms
285 ms
190 ms
499 ms
176 ms
Our browser made a total of 107 requests to load all elements on the main page. We found that 27% of them (29 requests) were addressed to the original Devriesboeken.nl, 62% (66 requests) were made to Images.vanstockum.eu and 9% (10 requests) were made to Images.devriesboeken.nl. The less responsive or slowest element that took the longest time to load (3.5 sec) relates to the external source Images.vanstockum.eu.
Page size can be reduced by 102.5 kB (51%)
202.4 kB
99.8 kB
In fact, the total size of Devriesboeken.nl main page is 202.4 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. 30% of websites need less resources to load. HTML takes 97.0 kB which makes up the majority of the site volume.
Potential reduce by 83.4 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 83.4 kB or 86% of the original size.
Potential reduce by 17.9 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. Obviously, De Vries Boeken needs image optimization as it can save up to 17.9 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.3 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. This website has mostly compressed JavaScripts.
Number of requests can be reduced by 10 (10%)
103
93
The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Vries Boeken. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
devriesboeken.nl
1540 ms
content_dv.css
285 ms
chosen.css
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combined.js
499 ms
moment.min_1.7.2.js
176 ms
nl.js
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tabber.js
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home_dv.js
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ga.js
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22864355-Bloemen-van-het-kwaad-Paul-Damen
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1103 ms
22915657-100-Brugge-kado-
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devriesboeken.nl accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
devriesboeken.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
devriesboeken.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
Document uses legible font sizes
Tap targets are not sized appropriately
NL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devriesboeken.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 Devriesboeken.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.
devriesboeken.nl
Open Graph description is not detected on the main page of De Vries Boeken. 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: