6.9 sec in total
345 ms
6.3 sec
277 ms
Welcome to blackkalendar.nl homepage info - get ready to check Black Kalendar best content right away, or after learning these important things about blackkalendar.nl
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Visit blackkalendar.nlWe analyzed Blackkalendar.nl page load time and found that the first response time was 345 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
blackkalendar.nl performance score
name
value
score
weighting
Value1.9 s
88/100
10%
Value1.9 s
98/100
25%
Value4.3 s
75/100
10%
Value70 ms
99/100
30%
Value0
100/100
15%
Value2.0 s
99/100
10%
345 ms
1041 ms
167 ms
168 ms
33 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 98% of them (52 requests) were addressed to the original Blackkalendar.nl, 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Blackkalendar.nl.
Page size can be reduced by 638.2 kB (33%)
1.9 MB
1.3 MB
In fact, the total size of Blackkalendar.nl main page is 1.9 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. 60% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 64.8 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. 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 64.8 kB or 94% of the original size.
Potential reduce by 558.3 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, Black Kalendar needs image optimization as it can save up to 558.3 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 4.6 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 4.6 kB or 65% of the original size.
Potential reduce by 10.6 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. Blackkalendar.nl needs all CSS files to be minified and compressed as it can save up to 10.6 kB or 77% of the original size.
Number of requests can be reduced by 3 (6%)
48
45
The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Kalendar. 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 CSS and as a result speed up the page load time.
blackkalendar.nl
345 ms
www.blackkalendar.nl
1041 ms
cssSite.css
167 ms
nivo-slider.css
168 ms
jquery.min.js
33 ms
jquery.nivo.slider.pack.js
168 ms
cssPC.css
87 ms
cssPhone.css
88 ms
banner001.jpg
87 ms
banner005.jpg
335 ms
banner007.jpg
292 ms
banner006.jpg
337 ms
banner008.jpg
420 ms
banner009.jpg
421 ms
banner010.jpg
419 ms
banner011.jpg
458 ms
banner014.jpg
499 ms
banner012.jpg
506 ms
banner015.jpg
588 ms
banner016.jpg
587 ms
banner018.jpg
669 ms
banner013.jpg
624 ms
banner004.jpg
666 ms
banner017.jpg
671 ms
banner019.jpg
755 ms
banner020.jpg
837 ms
banner003.jpg
790 ms
banner001.jpg
831 ms
banner002.jpg
833 ms
banner021.jpg
836 ms
banner022.jpg
922 ms
banner023.jpg
955 ms
banner024.jpg
998 ms
executed.png
1083 ms
released.png
1087 ms
dead.png
1005 ms
escaped.png
1171 ms
appealed.png
1206 ms
quashed.png
1246 ms
unsafe.png
1171 ms
blanki.jpg
1165 ms
dfn_thumbnailer.php
1206 ms
dfn_thumbnailer.php
1375 ms
magenta_bbt-webfont.woff
1253 ms
index.php
2536 ms
dfn_thumbnailer.php
1141 ms
dfn_thumbnailer.php
1037 ms
dfn_thumbnailer.php
1068 ms
dfn_thumbnailer.php
1000 ms
dfn_thumbnailer.php
1148 ms
index.php
1902 ms
magenta_bbt-webfont.ttf
86 ms
index.php
1394 ms
blackkalendar.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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
blackkalendar.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
General
Impact
Issue
Detected JavaScript libraries
blackkalendar.nl SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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 Blackkalendar.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 Blackkalendar.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.
blackkalendar.nl
Open Graph description is not detected on the main page of Black Kalendar. 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: