Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

tandem-hamburg.de

Deutschkurse Hamburg und Englischkurse | Tandem Hamburg

Page Load Speed

11.4 sec in total

First Response

422 ms

Resources Loaded

10.6 sec

Page Rendered

357 ms

tandem-hamburg.de screenshot

About Website

Click here to check amazing Tandem Hamburg content for Germany. Otherwise, check out these important facts you probably never knew about tandem-hamburg.de

Deutschkurse Hamburg, Englischkurse und weitere Fremdsprachen auf den Niveaustufen A1, A2, B1, B2, C1 in kleinen Gruppen in Präsenz oder online

Visit tandem-hamburg.de

Key Findings

We analyzed Tandem-hamburg.de page load time and found that the first response time was 422 ms and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

tandem-hamburg.de performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value24.7 s

0/100

25%

SI (Speed Index)

Value8.4 s

19/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.054

98/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

tandem-hamburg.de

422 ms

www.hamburg-tandem.de

1035 ms

screen.css

588 ms

fontstylesheet.css

296 ms

jquery-1.8.js

2881 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Tandem-hamburg.de, 49% (34 requests) were made to Hamburg-tandem.de and 29% (20 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (6.5 sec) relates to the external source Hamburg-tandem.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 156.0 kB (15%)

Content Size

1.0 MB

After Optimization

867.8 kB

In fact, the total size of Tandem-hamburg.de main page is 1.0 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. 35% of websites need less resources to load. Images take 818.4 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 19.2 kB

  • Original 25.1 kB
  • After minification 22.4 kB
  • After compression 5.8 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 19.2 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 14.1 kB

  • Original 818.4 kB
  • After minification 804.4 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. Tandem Hamburg images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 97.6 kB

  • Original 151.4 kB
  • After minification 150.6 kB
  • After compression 53.8 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 97.6 kB or 64% of the original size.

CSS Optimization

-87%

Potential reduce by 25.1 kB

  • Original 28.9 kB
  • After minification 19.3 kB
  • After compression 3.8 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. Tandem-hamburg.de needs all CSS files to be minified and compressed as it can save up to 25.1 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (43%)

Requests Now

65

After Optimization

37

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tandem Hamburg. 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 from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tandem-hamburg.de accessibility score

85

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

ARIA IDs are not unique

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

tandem-hamburg.de best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

tandem-hamburg.de SEO score

91

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 Tandem-hamburg.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 Tandem-hamburg.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

Open Graph description is not detected on the main page of Tandem Hamburg. 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: