Tools & Wizards About Us
biologie-lk.de screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

biologie-lk.de

Biologie Leistungskurs, Lexikon, Referate, Forum: Biologie-LK.de

Page Load Speed

6.6 sec in total

First Response

54 ms

Resources Loaded

6.3 sec

Page Rendered

252 ms

biologie-lk.de screenshot

About Website

Visit biologie-lk.de now to see the best up-to-date Biologie LK content for Germany and also check out these interesting facts you probably never knew about biologie-lk.de

Biologie Leistungskurs: Antworten zu Facharbeiten und Abituraufgaben, Biologie Referate und Biologie Hausaufgabenhilfe im gut besuchten Biologie Fach Forum

Visit biologie-lk.de

Key Findings

We analyzed Biologie-lk.de page load time and found that the first response time was 54 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

biologie-lk.de performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

76/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.4 s

72/100

10%

Network Requests Diagram

biologie-lk.de

54 ms

biologie-lk.de

353 ms

forum.php

429 ms

cmp.php

404 ms

cmp_en.min.js

217 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 69% of them (33 requests) were addressed to the original Biologie-lk.de, 8% (4 requests) were made to Cdn.consentmanager.net and 8% (4 requests) were made to A.delivery.consentmanager.net. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Biologie-lk.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.1 kB (32%)

Content Size

384.4 kB

After Optimization

261.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Biologie-lk.de main page is 384.4 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. 20% of websites need less resources to load. HTML takes 150.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 120.3 kB

  • Original 150.1 kB
  • After minification 141.7 kB
  • After compression 29.8 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 120.3 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 867 B

  • Original 66.6 kB
  • After minification 65.7 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. Biologie LK images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.7 kB

  • Original 143.7 kB
  • After minification 143.7 kB
  • After compression 142.0 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

-1%

Potential reduce by 165 B

  • Original 24.0 kB
  • After minification 24.0 kB
  • After compression 23.9 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. Biologie-lk.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 30 (67%)

Requests Now

45

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biologie LK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

biologie-lk.de

biologie-lk.de

54 ms

biologie-lk.de

biologie-lk.de

353 ms

forum.php

forum.php

429 ms

cmp.php

cmp.php

404 ms

cmp_en.min.js

cmp_en.min.js

217 ms

css.php

css.php

676 ms

css.php

css.php

434 ms

css.php

css.php

461 ms

css.php

css.php

424 ms

css.php

css.php

445 ms

js.php

js.php

522 ms

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

88 ms

cmp.php

cmp.php

451 ms

forumhelden_logo_small.png

forumhelden_logo_small.png

116 ms

d0ed9bb025bd89fc1455c9789557592e.gif

d0ed9bb025bd89fc1455c9789557592e.gif

82 ms

lg.php

lg.php

505 ms

25178639e6d32368de7b496f17997ff6.jpg

25178639e6d32368de7b496f17997ff6.jpg

95 ms

lg.php

lg.php

503 ms

newbtn_middle.png

newbtn_middle.png

1343 ms

biologie-lk_header.jpg

biologie-lk_header.jpg

466 ms

biologie-lk_logo.png

biologie-lk_logo.png

1455 ms

arrow.png

arrow.png

362 ms

navbit-home.png

navbit-home.png

356 ms

navbit-arrow-right.png

navbit-arrow-right.png

66 ms

newbt_leafes.gif

newbt_leafes.gif

84 ms

gradient_tcat.gif

gradient_tcat.gif

105 ms

status-bg.gif

status-bg.gif

2343 ms

forum_old-48.png

forum_old-48.png

2353 ms

lastpost-right.png

lastpost-right.png

2344 ms

gradient-greytowhite.png

gradient-greytowhite.png

2355 ms

users_online.png

users_online.png

3361 ms

forum_stats.png

forum_stats.png

3356 ms

legend.png

legend.png

3368 ms

forum_new-16.png

forum_new-16.png

2363 ms

forum_old-16.png

forum_old-16.png

2363 ms

category-16.png

category-16.png

3368 ms

forum_link-16.png

forum_link-16.png

3368 ms

gradient-black-down.png

gradient-black-down.png

3373 ms

facebook_logo.png

facebook_logo.png

3686 ms

twitter_logo.png

twitter_logo.png

3708 ms

rss_logo.png

rss_logo.png

3389 ms

cron.php

cron.php

4413 ms

cmp.php

cmp.php

111 ms

bV8xLndfMjcyNzIucl9HRFBSLmxfZGUuZF8xMjA0Ni54XzYudi5wLnRfMTIwNDYueHRfNg.js

bV8xLndfMjcyNzIucl9HRFBSLmxfZGUuZF8xMjA0Ni54XzYudi5wLnRfMTIwNDYueHRfNg.js

1107 ms

100 ms

logo1618821044x4389.gif

logo1618821044x4389.gif

14 ms

cmplogo.svg

cmplogo.svg

20 ms

177 ms

Accessibility Review

biologie-lk.de accessibility score

76

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

biologie-lk.de best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

biologie-lk.de SEO score

89

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

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

    N/A

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Biologie-lk.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is German. Our system also found out that Biologie-lk.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

biologie-lk.de

Open Graph description is not detected on the main page of Biologie LK. 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: