Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

christianlehmann.eu

Christian Lehmann

Page Load Speed

2.2 sec in total

First Response

374 ms

Resources Loaded

1.7 sec

Page Rendered

133 ms

christianlehmann.eu screenshot

About Website

Click here to check amazing Christian Lehmann content for Germany. Otherwise, check out these important facts you probably never knew about christianlehmann.eu

Christian Lehmann, Professor emeritus für Allgemeine und Vergleichende Sprachwissenschaft an der Universität Erfurt, homepage

Visit christianlehmann.eu

Key Findings

We analyzed Christianlehmann.eu page load time and found that the first response time was 374 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

christianlehmann.eu performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

christianlehmann.eu

374 ms

CL_Styles.css

203 ms

CL_Scripts.js

302 ms

ref_dummy.html

104 ms

navig.html

107 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Christianlehmann.eu and no external sources were called. The less responsive or slowest element that took the longest time to load (625 ms) belongs to the original domain Christianlehmann.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 39.4 kB (18%)

Content Size

216.7 kB

After Optimization

177.3 kB

In fact, the total size of Christianlehmann.eu main page is 216.7 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. Only 10% of websites need less resources to load. Images take 170.3 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 1.2 kB

  • Original 2.0 kB
  • After minification 1.8 kB
  • After compression 788 B

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 1.2 kB or 60% of the original size.

Image Optimization

-1%

Potential reduce by 1.6 kB

  • Original 170.3 kB
  • After minification 168.7 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. Christian Lehmann images are well optimized though.

JavaScript Optimization

-83%

Potential reduce by 16.9 kB

  • Original 20.3 kB
  • After minification 12.3 kB
  • After compression 3.4 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 16.9 kB or 83% of the original size.

CSS Optimization

-82%

Potential reduce by 19.8 kB

  • Original 24.2 kB
  • After minification 19.1 kB
  • After compression 4.4 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. Christianlehmann.eu needs all CSS files to be minified and compressed as it can save up to 19.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (30%)

Requests Now

10

After Optimization

7

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Christian Lehmann. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

christianlehmann.eu accessibility score

83

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

Image elements do not have [alt] attributes

Best Practices

christianlehmann.eu best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

christianlehmann.eu SEO score

92

Search Engine Optimization Advices

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

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

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-15

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Christianlehmann.eu can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Christianlehmann.eu main page’s claimed encoding is iso-8859-15. 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

Open Graph description is not detected on the main page of Christian Lehmann. 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: