1.9 sec in total
303 ms
1.5 sec
147 ms
Welcome to bertus.com homepage info - get ready to check Bertus best content for Russia right away, or after learning these important things about bertus.com
In 1971, the doors of a brand new record store opened in the city of Rotterdam, the Netherlands
Visit bertus.comWe analyzed Bertus.com page load time and found that the first response time was 303 ms and then it took 1.6 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.
bertus.com performance score
name
value
score
weighting
Value3.4 s
36/100
10%
Value5.6 s
18/100
25%
Value4.3 s
76/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value3.8 s
90/100
10%
303 ms
85 ms
256 ms
170 ms
171 ms
Our browser made a total of 22 requests to load all elements on the main page. We found that 86% of them (19 requests) were addressed to the original Bertus.com, 14% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (335 ms) belongs to the original domain Bertus.com.
Page size can be reduced by 77.5 kB (32%)
245.8 kB
168.3 kB
In fact, the total size of Bertus.com main page is 245.8 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. 15% of websites need less resources to load. Javascripts take 115.2 kB which makes up the majority of the site volume.
Potential reduce by 4.2 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 1.1 kB, which is 18% 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 4.2 kB or 69% of the original size.
Potential reduce by 489 B
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. Bertus images are well optimized though.
Potential reduce by 63.9 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 63.9 kB or 55% of the original size.
Potential reduce by 8.9 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. Bertus.com needs all CSS files to be minified and compressed as it can save up to 8.9 kB or 79% of the original size.
Number of requests can be reduced by 13 (65%)
20
7
The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bertus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
www.bertus.com
303 ms
iepngfix.js
85 ms
jquery-1.6.4.min.js
256 ms
site.js
170 ms
style.css
171 ms
layout.css
87 ms
fonts.css
85 ms
forms.css
86 ms
ga.js
31 ms
back_albums.jpg
335 ms
__utm.gif
13 ms
logo.gif
85 ms
blue.png
85 ms
open.gif
86 ms
close.gif
171 ms
divider.jpg
171 ms
ico_facebook.png
168 ms
ico_twitter.png
171 ms
ico_youtube.png
170 ms
divider2.jpg
250 ms
helveticaneue-webfont.woff
242 ms
__utm.gif
11 ms
bertus.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
bertus.com 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
bertus.com SEO score
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
EN
NL
WINDOWS-1252
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bertus.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Dutch language. Our system also found out that Bertus.com main page’s claimed encoding is windows-1252. 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.
bertus.com
Open Graph description is not detected on the main page of Bertus. 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: