Tools & Wizards About Us
osmb.de screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

osmb.de

Online Weiterbildung für IT-Professionals | heise Academy

Page Load Speed

3.5 sec in total

First Response

395 ms

Resources Loaded

2.8 sec

Page Rendered

287 ms

osmb.de screenshot

About Website

Visit osmb.de now to see the best up-to-date Osmb content and also check out these interesting facts you probably never knew about osmb.de

Workshops, Seminare, Webinare und eLearning-Angebote zu allen wichtigen Themen, die Sie und Ihr Unternehmen weiter bringen - von IT-Profis für IT-Profis.

Visit osmb.de

Key Findings

We analyzed Osmb.de page load time and found that the first response time was 395 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

osmb.de performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.184

66/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

osmb.de

395 ms

419 ms

www.heise-events.de

516 ms

heise-academy.de

760 ms

6fa22da27ea7e873.css

325 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Osmb.de, 88% (21 requests) were made to Heise-academy.de and 4% (1 request) were made to Heise.de. The less responsive or slowest element that took the longest time to load (796 ms) relates to the external source Heise-academy.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (7%)

Content Size

17.0 MB

After Optimization

15.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Osmb.de main page is 17.0 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. 25% of websites need less resources to load. Images take 16.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 413.5 kB

  • Original 499.3 kB
  • After minification 499.0 kB
  • After compression 85.8 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 413.5 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 399.3 kB

  • Original 16.1 MB
  • After minification 15.7 MB

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. Osmb images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 88.5 kB

  • Original 153.7 kB
  • After minification 146.4 kB
  • After compression 65.2 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 88.5 kB or 58% of the original size.

CSS Optimization

-88%

Potential reduce by 266.4 kB

  • Original 304.2 kB
  • After minification 240.9 kB
  • After compression 37.8 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. Osmb.de needs all CSS files to be minified and compressed as it can save up to 266.4 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (90%)

Requests Now

20

After Optimization

2

  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osmb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

osmb.de

osmb.de

395 ms

419 ms

www.heise-events.de

www.heise-events.de

516 ms

heise-academy.de

heise-academy.de

760 ms

6fa22da27ea7e873.css

6fa22da27ea7e873.css

325 ms

4a6570b1-d6daeca29df3fa06.js

4a6570b1-d6daeca29df3fa06.js

446 ms

646-72cb852608be9e85.js

646-72cb852608be9e85.js

437 ms

main-app-85cb5318679cc2b9.js

main-app-85cb5318679cc2b9.js

323 ms

8c91172f-f247ca4d63f26a2b.js

8c91172f-f247ca4d63f26a2b.js

651 ms

357-982586437d67fe87.js

357-982586437d67fe87.js

694 ms

993-c2002f7500352f98.js

993-c2002f7500352f98.js

442 ms

959-7ec2910324f18f56.js

959-7ec2910324f18f56.js

439 ms

321-f1eb39e47531a8b0.js

321-f1eb39e47531a8b0.js

557 ms

220-18a0b0dbeb3b5deb.js

220-18a0b0dbeb3b5deb.js

675 ms

965-86880aeaac85fcb4.js

965-86880aeaac85fcb4.js

563 ms

809-33fa2bcb52322338.js

809-33fa2bcb52322338.js

564 ms

292-e671fcfb64d53224.js

292-e671fcfb64d53224.js

669 ms

949-2731d377f63592bf.js

949-2731d377f63592bf.js

673 ms

514-af8011fa5c5dd399.js

514-af8011fa5c5dd399.js

684 ms

857-900bbb528e11a31c.js

857-900bbb528e11a31c.js

761 ms

139-613603fea890dbc9.js

139-613603fea890dbc9.js

791 ms

page-f64af088a533fbe5.js

page-f64af088a533fbe5.js

790 ms

polyfills-78c92fac7aa8fdd8.js

polyfills-78c92fac7aa8fdd8.js

796 ms

webpack-f4eeb63119d59ae4.js

webpack-f4eeb63119d59ae4.js

703 ms

Accessibility Review

osmb.de accessibility score

91

Accessibility Issues

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

High

Buttons do not have an accessible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

osmb.de best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

osmb.de SEO score

98

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osmb.de 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 Osmb.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.

Social Sharing Optimization

osmb.de

Open Graph data is detected on the main page of Osmb. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: