4.8 sec in total
776 ms
3.6 sec
400 ms
Welcome to open.hpi.de homepage info - get ready to check Open HPI best content for Germany right away, or after learning these important things about open.hpi.de
Visit open.hpi.deWe analyzed Open.hpi.de page load time and found that the first response time was 776 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
open.hpi.de performance score
name
value
score
weighting
Value4.9 s
11/100
10%
Value5.5 s
19/100
25%
Value7.7 s
24/100
10%
Value240 ms
86/100
30%
Value0.168
70/100
15%
Value10.8 s
22/100
10%
776 ms
208 ms
615 ms
332 ms
1250 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that 69% of them (24 requests) were addressed to the original Open.hpi.de, 11% (4 requests) were made to F.vimeocdn.com and 9% (3 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Open.hpi.de.
Page size can be reduced by 1.2 MB (59%)
2.1 MB
857.5 kB
In fact, the total size of Open.hpi.de main page is 2.1 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. 35% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 14.9 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 14.9 kB or 66% of the original size.
Potential reduce by 20.2 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. Open HPI images are well optimized though.
Potential reduce by 962.9 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 962.9 kB or 72% of the original size.
Potential reduce by 243.9 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. Open.hpi.de needs all CSS files to be minified and compressed as it can save up to 243.9 kB or 86% of the original size.
Number of requests can be reduced by 11 (35%)
31
20
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open HPI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
open.hpi.de
776 ms
bootstrap-c8deae4a98765e839004267c463198f92d1f8a87879b543e6164f49171ec258e.css
208 ms
application_openhpi-dc941846bb24edac7652fbd5ec2e44b666dbcfcfb4af8a5d56511124b8120119.css
615 ms
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332 ms
application-e4402875ccb120f1a0c9f4b0e14a1fb06c85f2597a610463e4019d52a0a996aa.js
1250 ms
jquery.validationEngine-en-41ccf38c14ecc8e547874dd580b5e18009c7a93de8183152c4fe6204220c9f10.js
342 ms
vendor-8ade8d94acea044f995fba3c9aca7b236e525d899ea02f08e8f1805322694f8f.js
1059 ms
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545 ms
vendor-873d7606e501dfb74a46c4be34c3bc8a8f49ccb54595ea02c4ee5ba6d63739cb.css
436 ms
98128929
290 ms
122303836
290 ms
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259 ms
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259 ms
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259 ms
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259 ms
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258 ms
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258 ms
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489 ms
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880 ms
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384 ms
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452 ms
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734 ms
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655 ms
piwik.js
671 ms
player.js
106 ms
player.css
58 ms
ga.js
73 ms
vuid.min.js
70 ms
__utm.gif
118 ms
__utm.gif
131 ms
proxy.html
58 ms
479260713.jpg
136 ms
511343670.jpg
87 ms
open.hpi.de 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.
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
open.hpi.de 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
Page has valid source maps
open.hpi.de 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
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Open.hpi.de 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 Open.hpi.de 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.
open.hpi.de
Open Graph description is not detected on the main page of Open HPI. 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: