1.7 sec in total
277 ms
1.3 sec
204 ms
Welcome to betaboeken.nl homepage info - get ready to check Beta Boeken best content right away, or after learning these important things about betaboeken.nl
Bèta Boeken \ Beta Books- The international Antiquarian Booksite. Search and find used, rare and second-hand books on the exact sciences.
Visit betaboeken.nlWe analyzed Betaboeken.nl page load time and found that the first response time was 277 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
betaboeken.nl performance score
name
value
score
weighting
Value3.6 s
33/100
10%
Value4.5 s
38/100
25%
Value4.0 s
81/100
10%
Value50 ms
100/100
30%
Value0.016
100/100
15%
Value3.8 s
89/100
10%
277 ms
374 ms
173 ms
182 ms
198 ms
Our browser made a total of 21 requests to load all elements on the main page. We found that 81% of them (17 requests) were addressed to the original Betaboeken.nl, 10% (2 requests) were made to Fonts.googleapis.com and 10% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (544 ms) belongs to the original domain Betaboeken.nl.
Page size can be reduced by 85.1 kB (21%)
401.0 kB
315.9 kB
In fact, the total size of Betaboeken.nl main page is 401.0 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. Only 10% of websites need less resources to load. Images take 276.7 kB which makes up the majority of the site volume.
Potential reduce by 4.5 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 4.5 kB or 66% of the original size.
Potential reduce by 1.5 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. Beta Boeken images are well optimized though.
Potential reduce by 65.4 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 65.4 kB or 65% of the original size.
Potential reduce by 13.8 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. Betaboeken.nl needs all CSS files to be minified and compressed as it can save up to 13.8 kB or 81% of the original size.
Number of requests can be reduced by 6 (33%)
18
12
The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Beta Boeken. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for CSS and as a result speed up the page load time.
betaboeken.nl
277 ms
jquery-1.10.2.min.js
374 ms
lightbox-2.6.min.js
173 ms
reset.css
182 ms
mobilenav.css
198 ms
css
25 ms
index.css
198 ms
mediascreen.css
197 ms
lightbox.css
263 ms
css
41 ms
winkel1.jpg
115 ms
bgboard.jpg
544 ms
logo_nieuw.jpg
87 ms
logobg.jpg
98 ms
kopboeken.jpg
183 ms
close.png
90 ms
loading.gif
172 ms
prev.png
174 ms
next.png
194 ms
riJWcvd3sYdxJpiCWZvUGBsxEYwM7FgeyaSgU71cLG0.woff
11 ms
ODelI1aHBYDBqgeIAH2zlBM0YzuT7MdOe03otPbuUS0.woff
6 ms
betaboeken.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
Links do not have a discernible name
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>).
betaboeken.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
betaboeken.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Page is blocked from indexing
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
EN
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Betaboeken.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 Betaboeken.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.
betaboeken.nl
Open Graph description is not detected on the main page of Beta 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: