Tools & Wizards About Us
hertle-ingenieure.de screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    84% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

hertle-ingenieure.de

Hertle Ingenieure - Prof. Dr.-Ing. Robert Hertle Gräfelfing - Welcome

Page Load Speed

2.3 sec in total

First Response

221 ms

Resources Loaded

2 sec

Page Rendered

102 ms

hertle-ingenieure.de screenshot

About Website

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

Die Mitarbeiter von Hertle Ingenieure sehen es als Herausforderung an, mit Lösungen da anzusetzen, wo andere vielleicht schon aufgegeben haben. Besonders die Analyse komplexer Strukturen unter statisc...

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Key Findings

We analyzed Hertle-ingenieure.de page load time and found that the first response time was 221 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

hertle-ingenieure.de performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value2.8 s

95/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

hertle-ingenieure.de

221 ms

index_en.html

95 ms

hertle-ingenieure.de

389 ms

index_en.html

103 ms

style.css

101 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 89% of them (16 requests) were addressed to the original Hertle-ingenieure.de, 11% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (587 ms) belongs to the original domain Hertle-ingenieure.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 67.6 kB (14%)

Content Size

496.2 kB

After Optimization

428.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hertle-ingenieure.de main page is 496.2 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. 15% of websites need less resources to load. Images take 423.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 8.9 kB

  • Original 12.9 kB
  • After minification 10.6 kB
  • After compression 4.0 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. This page needs HTML code to be minified as it can gain 2.2 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 8.9 kB or 69% of the original size.

Image Optimization

-14%

Potential reduce by 57.4 kB

  • Original 423.0 kB
  • After minification 365.6 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, Hertle Ingenieure needs image optimization as it can save up to 57.4 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 696 B

  • Original 57.5 kB
  • After minification 57.5 kB
  • After compression 56.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-25%

Potential reduce by 692 B

  • Original 2.8 kB
  • After minification 2.7 kB
  • After compression 2.1 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. Hertle-ingenieure.de needs all CSS files to be minified and compressed as it can save up to 692 B or 25% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

14

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hertle Ingenieure. According to our analytics all requests are already optimized.

Network Requests Diagram

hertle-ingenieure.de

hertle-ingenieure.de

221 ms

index_en.html

index_en.html

95 ms

hertle-ingenieure.de

hertle-ingenieure.de

389 ms

index_en.html

index_en.html

103 ms

style.css

style.css

101 ms

overlay-apple.css

overlay-apple.css

199 ms

jquery.tools.min.js

jquery.tools.min.js

361 ms

ga.js

ga.js

25 ms

hertle_ingenieure_logo.png

hertle_ingenieure_logo.png

101 ms

flash_alternative.png

flash_alternative.png

587 ms

tum-logo.png

tum-logo.png

96 ms

flag_de.png

flag_de.png

190 ms

flag_en_active.png

flag_en_active.png

199 ms

pfeil.png

pfeil.png

283 ms

transparent.png

transparent.png

267 ms

__utm.gif

__utm.gif

13 ms

print.css

print.css

101 ms

flag_de_active.png

flag_de_active.png

100 ms

Accessibility Review

hertle-ingenieure.de accessibility score

59

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

<object> elements do not have alternate text

Best Practices

hertle-ingenieure.de best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hertle-ingenieure.de SEO score

50

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hertle-ingenieure.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed German language. Our system also found out that Hertle-ingenieure.de 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.

Social Sharing Optimization

hertle-ingenieure.de

Open Graph description is not detected on the main page of Hertle Ingenieure. 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: