Tools & Wizards About Us
lehrerweb.at screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

lehrerweb.at

Lehrer:innen-Web | Home

Page Load Speed

3.1 sec in total

First Response

220 ms

Resources Loaded

2.7 sec

Page Rendered

179 ms

lehrerweb.at screenshot

About Website

Welcome to lehrerweb.at homepage info - get ready to check Lehrer Web best content for Germany right away, or after learning these important things about lehrerweb.at

Lehrer:innen-Web | Home

Visit lehrerweb.at

Key Findings

We analyzed Lehrerweb.at page load time and found that the first response time was 220 ms and then it took 2.9 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

lehrerweb.at performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value2.019

0/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

220 ms

news-basic.css

106 ms

stylesheet_9b999fe4c0.css

315 ms

styles.css

215 ms

accordion.css

210 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Lehrerweb.at, 4% (2 requests) were made to Static.xx.fbcdn.net and 2% (1 request) were made to Box.lehrerweb.at. The less responsive or slowest element that took the longest time to load (833 ms) relates to the external source Lehrerweb.wien.

Page Optimization Overview & Recommendations

Page size can be reduced by 191.4 kB (39%)

Content Size

484.8 kB

After Optimization

293.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lehrerweb.at main page is 484.8 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. 25% of websites need less resources to load. Images take 269.9 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 26.6 kB

  • Original 31.9 kB
  • After minification 24.1 kB
  • After compression 5.3 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 7.8 kB, which is 24% 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 26.6 kB or 83% of the original size.

Image Optimization

-14%

Potential reduce by 38.3 kB

  • Original 269.9 kB
  • After minification 231.6 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, Lehrer Web needs image optimization as it can save up to 38.3 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

-65%

Potential reduce by 90.0 kB

  • Original 138.7 kB
  • After minification 137.7 kB
  • After compression 48.7 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 90.0 kB or 65% of the original size.

CSS Optimization

-82%

Potential reduce by 36.5 kB

  • Original 44.3 kB
  • After minification 31.0 kB
  • After compression 7.8 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. Lehrerweb.at needs all CSS files to be minified and compressed as it can save up to 36.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (41%)

Requests Now

46

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lehrer Web. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

220 ms

news-basic.css

news-basic.css

106 ms

stylesheet_9b999fe4c0.css

stylesheet_9b999fe4c0.css

315 ms

styles.css

styles.css

215 ms

accordion.css

accordion.css

210 ms

svw_styles.css

svw_styles.css

210 ms

startseite.css

startseite.css

217 ms

news_tt_01.css

news_tt_01.css

211 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

526 ms

wibs_accordion.js

wibs_accordion.js

316 ms

javascript_30dfc31e5a.js

javascript_30dfc31e5a.js

318 ms

rte_formate.css

rte_formate.css

107 ms

ekey_LW.gif

ekey_LW.gif

354 ms

head.jpg

head.jpg

107 ms

logo.jpg

logo.jpg

109 ms

distance.gif

distance.gif

106 ms

balken.jpg

balken.jpg

110 ms

wappen.gif

wappen.gif

107 ms

but_bg.gif

but_bg.gif

111 ms

csm_newsletter_wibs_1403794494.png

csm_newsletter_wibs_1403794494.png

210 ms

csm_playmit_27f61ac44c.png

csm_playmit_27f61ac44c.png

212 ms

csm_lehrberufe_347ad81ab0.png

csm_lehrberufe_347ad81ab0.png

210 ms

csm_LW_puma_381c45b32e.png

csm_LW_puma_381c45b32e.png

214 ms

ocg_logo.jpg

ocg_logo.jpg

213 ms

csm_hr_kurz_11_b1d3183b43.png

csm_hr_kurz_11_b1d3183b43.png

214 ms

csm_hr_kurz_02341c62bc.png

csm_hr_kurz_02341c62bc.png

312 ms

logo_meki.png

logo_meki.png

417 ms

wson_logo.png

wson_logo.png

314 ms

logo_smartkids.png

logo_smartkids.png

315 ms

bild_db_grafiken.jpg

bild_db_grafiken.jpg

417 ms

csm_logo_best_d42d5ce8e7.png

csm_logo_best_d42d5ce8e7.png

316 ms

klassenzimmertheater.jpg

klassenzimmertheater.jpg

416 ms

csm_selbstlaut_logo_dd8d649692.png

csm_selbstlaut_logo_dd8d649692.png

418 ms

csm_logo_arselectronica_79a6a23f2d.png

csm_logo_arselectronica_79a6a23f2d.png

419 ms

promethean_testaktionen.jpg

promethean_testaktionen.jpg

629 ms

csm_i_t_frauen_02_632f58fcef.png

csm_i_t_frauen_02_632f58fcef.png

519 ms

logo_kph.png

logo_kph.png

520 ms

printbutton.gif

printbutton.gif

522 ms

background.gif

background.gif

523 ms

wibs-logo-web.png

wibs-logo-web.png

730 ms

bildung.gif

bildung.gif

624 ms

wienenergie.gif

wienenergie.gif

626 ms

fujitsu.jpg

fujitsu.jpg

833 ms

piwik.js

piwik.js

466 ms

follow.php

follow.php

509 ms

vpc6VNjRPXV.js

vpc6VNjRPXV.js

281 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

320 ms

Accessibility Review

lehrerweb.at accessibility score

91

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.

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

Links do not have a discernible name

Best Practices

lehrerweb.at 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

lehrerweb.at 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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

lehrerweb.at

Open Graph description is not detected on the main page of Lehrer Web. 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: