Tools & Wizards About Us
swtue.de screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

swtue.de

Ihr regionaler Energieversorger in Tübingen | Stadtwerke Tübingen

Page Load Speed

6.1 sec in total

First Response

311 ms

Resources Loaded

5.3 sec

Page Rendered

472 ms

swtue.de screenshot

About Website

Click here to check amazing Swtue content for Germany. Otherwise, check out these important facts you probably never knew about swtue.de

Die Stadtwerke Tübingen versorgen die Region nachhaltig mit Energie, Trinkwasser, ÖPNV, E-Mobilität, Telekommunikation, Parkhäusern, Schwimmbädern und weiteren Services.

Visit swtue.de

Key Findings

We analyzed Swtue.de page load time and found that the first response time was 311 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

swtue.de performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value6.1 s

44/100

10%

TBT (Total Blocking Time)

Value760 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.129

82/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

swtue.de

311 ms

www.swtue.de

661 ms

merged-dcce182e4040b05214d2b44360383b4b-750b5a4f97f2896032e299becdd24008.css.1456305420.gzip

430 ms

merged-d84e61a3ded805f4eb67fd1424ba86e9-025f76f9ca4c16a79646ad952502f405.js.1454321620.gzip

529 ms

merged-13fa6e732c4619a45e062d79f711bf98-cc4e7d6668d9d0cd9d9b7cad4f29fbf3.js.1426667020.gzip

655 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 33% of them (16 requests) were addressed to the original Swtue.de, 44% (21 requests) were made to Media.swtue.de and 17% (8 requests) were made to Fonts.swtue.de. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Fonts.swtue.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 730.2 kB (36%)

Content Size

2.0 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Swtue.de main page is 2.0 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. 50% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 97.6 kB

  • Original 118.1 kB
  • After minification 112.8 kB
  • After compression 20.5 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 97.6 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 57.1 kB

  • Original 1.1 MB
  • After minification 1.0 MB

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. Swtue images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 452.0 kB

  • Original 648.5 kB
  • After minification 648.1 kB
  • After compression 196.6 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 452.0 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 123.4 kB

  • Original 151.4 kB
  • After minification 149.6 kB
  • After compression 28.0 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. Swtue.de needs all CSS files to be minified and compressed as it can save up to 123.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (11%)

Requests Now

37

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Swtue. 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 as a result speed up the page load time.

Network Requests Diagram

swtue.de

swtue.de

311 ms

www.swtue.de

www.swtue.de

661 ms

merged-dcce182e4040b05214d2b44360383b4b-750b5a4f97f2896032e299becdd24008.css.1456305420.gzip

merged-dcce182e4040b05214d2b44360383b4b-750b5a4f97f2896032e299becdd24008.css.1456305420.gzip

430 ms

merged-d84e61a3ded805f4eb67fd1424ba86e9-025f76f9ca4c16a79646ad952502f405.js.1454321620.gzip

merged-d84e61a3ded805f4eb67fd1424ba86e9-025f76f9ca4c16a79646ad952502f405.js.1454321620.gzip

529 ms

merged-13fa6e732c4619a45e062d79f711bf98-cc4e7d6668d9d0cd9d9b7cad4f29fbf3.js.1426667020.gzip

merged-13fa6e732c4619a45e062d79f711bf98-cc4e7d6668d9d0cd9d9b7cad4f29fbf3.js.1426667020.gzip

655 ms

merged-c6d26ca16967654e471db896e7d3ac3f-8c2fdbff311d882e84ff1d4295dae35b.js.1450344821.gzip

merged-c6d26ca16967654e471db896e7d3ac3f-8c2fdbff311d882e84ff1d4295dae35b.js.1450344821.gzip

264 ms

suggest.1454322490.js

suggest.1454322490.js

99 ms

analytics.js

analytics.js

52 ms

captcha.php

captcha.php

147 ms

Header_SVT_Jahresmotiv.jpg

Header_SVT_Jahresmotiv.jpg

718 ms

HB_Nord_084_dM.jpg

HB_Nord_084_dM.jpg

537 ms

HB_Nord_Sauna.jpg

HB_Nord_Sauna.jpg

405 ms

Uhlandbad.jpg

Uhlandbad.jpg

910 ms

Freibad_MG3366_Klatt.jpg

Freibad_MG3366_Klatt.jpg

1995 ms

Rasterelement_Umzugsservice.jpg

Rasterelement_Umzugsservice.jpg

644 ms

top-lokalversorger-strom-2016.png

top-lokalversorger-strom-2016.png

512 ms

klima-stadtwerk.png

klima-stadtwerk.png

716 ms

top-lokalversorger-gas-2016.png

top-lokalversorger-gas-2016.png

635 ms

sprite.png

sprite.png

403 ms

swt-logo.png

swt-logo.png

113 ms

csm_Rasterelement_OnlineKC_2_91c3abc0b4.jpg

csm_Rasterelement_OnlineKC_2_91c3abc0b4.jpg

398 ms

csm_Kelternstrasse_Open_Street_Map_2016_1ac4ec4e46.jpg

csm_Kelternstrasse_Open_Street_Map_2016_1ac4ec4e46.jpg

401 ms

csm_plakette_kombi_2016_47972b506a.jpg

csm_plakette_kombi_2016_47972b506a.jpg

738 ms

csm_swt_Bahnstrom_swt-Gueterlok__4__6265111293.jpg

csm_swt_Bahnstrom_swt-Gueterlok__4__6265111293.jpg

399 ms

csm_Rasterelement_swt-Umweltpreis2015_7e0b828e15.jpg

csm_Rasterelement_swt-Umweltpreis2015_7e0b828e15.jpg

402 ms

csm_Rasterelement_Energietrainer_3cbb51b00a.jpg

csm_Rasterelement_Energietrainer_3cbb51b00a.jpg

401 ms

siegel-top-lokalversorger-kombi-2016.png

siegel-top-lokalversorger-kombi-2016.png

403 ms

siegel-gepruefter-oekostrom.png

siegel-gepruefter-oekostrom.png

404 ms

siegel-beruf-und-familie.png

siegel-beruf-und-familie.png

404 ms

siegel-tsm-geprueft.png

siegel-tsm-geprueft.png

405 ms

siegel-gutcert.png

siegel-gutcert.png

406 ms

siegel-die-kommunalen.png

siegel-die-kommunalen.png

428 ms

sprite-bullets.png

sprite-bullets.png

619 ms

sprite-links.png

sprite-links.png

437 ms

collect

collect

11 ms

90f4ae30-e535-498e-8be9-efcf0e69afd1.woff

90f4ae30-e535-498e-8be9-efcf0e69afd1.woff

2750 ms

8034a6c8-42bc-43aa-ae1e-fb3c542c4075.woff

8034a6c8-42bc-43aa-ae1e-fb3c542c4075.woff

2768 ms

icomoon.ttf

icomoon.ttf

399 ms

f5e1f63d-a59b-4f88-a0c5-55f863443051.woff

f5e1f63d-a59b-4f88-a0c5-55f863443051.woff

2797 ms

2ffb2ca5-bb3a-40ab-bd73-8e3f9e01d3c5.woff

2ffb2ca5-bb3a-40ab-bd73-8e3f9e01d3c5.woff

2811 ms

a4a37370-12ae-4b1e-838e-cc18e6390d9f.woff

a4a37370-12ae-4b1e-838e-cc18e6390d9f.woff

3773 ms

cb72719e-4216-4659-891b-f36a9c6e79c0.woff

cb72719e-4216-4659-891b-f36a9c6e79c0.woff

3309 ms

eaaaf0ab-388e-4f65-914d-e6ee9f83945e.woff

eaaaf0ab-388e-4f65-914d-e6ee9f83945e.woff

2936 ms

0bc3e8ef-604d-42b5-9a28-5ca01d0029b5.woff

0bc3e8ef-604d-42b5-9a28-5ca01d0029b5.woff

2960 ms

cookieconsent-1.0.9.min.js

cookieconsent-1.0.9.min.js

361 ms

Header_BEN_Energietrainer.png

Header_BEN_Energietrainer.png

441 ms

Header_Partnersuche.jpg

Header_Partnersuche.jpg

516 ms

dark-top.css

dark-top.css

28 ms

Accessibility Review

swtue.de accessibility score

94

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

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

swtue.de best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

swtue.de SEO score

93

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

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 Swtue.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 Swtue.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

swtue.de

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