10.5 sec in total
373 ms
10 sec
98 ms
Visit serendip.at now to see the best up-to-date Serendip content and also check out these interesting facts you probably never knew about serendip.at
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Visit serendip.atWe analyzed Serendip.at page load time and found that the first response time was 373 ms and then it took 10.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
serendip.at performance score
name
value
score
weighting
Value5.6 s
5/100
10%
Value12.7 s
0/100
25%
Value7.2 s
30/100
10%
Value40 ms
100/100
30%
Value0
100/100
15%
Value8.3 s
40/100
10%
373 ms
7481 ms
622 ms
747 ms
24 ms
Our browser made a total of 22 requests to load all elements on the main page. We found that 68% of them (15 requests) were addressed to the original Serendip.at, 27% (6 requests) were made to Fonts.gstatic.com and 5% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (7.5 sec) belongs to the original domain Serendip.at.
Page size can be reduced by 453.8 kB (68%)
667.8 kB
214.0 kB
In fact, the total size of Serendip.at main page is 667.8 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. 35% of websites need less resources to load. CSS take 332.9 kB which makes up the majority of the site volume.
Potential reduce by 9.8 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 9.8 kB or 71% of the original size.
Potential reduce by 15.6 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. Obviously, Serendip needs image optimization as it can save up to 15.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 148.5 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 148.5 kB or 67% of the original size.
Potential reduce by 279.9 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. Serendip.at needs all CSS files to be minified and compressed as it can save up to 279.9 kB or 84% of the original size.
Number of requests can be reduced by 6 (43%)
14
8
The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Serendip. 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.
serendip.at
373 ms
www.serendip.at
7481 ms
css-30e98.css
622 ms
css-22b7d.css
747 ms
css
24 ms
css-90d98.css
205 ms
js-69601.js
727 ms
acymailing_module.js
273 ms
module_default_basic_black.css
493 ms
system.css
356 ms
module_default.css
302 ms
logo15.png
790 ms
logo-klein.png
684 ms
aserendiphaus.jpg
1097 ms
bIcY3_3JNqUVRAQQRNVteQ.ttf
6 ms
CcKI4k9un7TZVWzRVT-T8y3USBnSvpkopQaUR-2r7iU.ttf
9 ms
-_Ctzj9b56b8RgXW8FAriS3USBnSvpkopQaUR-2r7iU.ttf
18 ms
RJMlAoFXXQEzZoMSUteGWKCWcynf_cDxXwCLxiixG1c.ttf
17 ms
xkvoNo9fC8O2RDydKj12by3USBnSvpkopQaUR-2r7iU.ttf
17 ms
JbtMzqLaYbbbCL9X6EvaIy3USBnSvpkopQaUR-2r7iU.ttf
17 ms
fontawesome-webfont.woff
747 ms
fontawesome-webfont.woff
897 ms
serendip.at accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
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
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
serendip.at 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
Browser errors were logged to the console
Page has valid source maps
serendip.at SEO score
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
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Serendip.at can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Serendip.at 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.
serendip.at
Open Graph description is not detected on the main page of Serendip. 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: