Tools & Wizards About Us
derinstallateur.at screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

derinstallateur.at

Der österreichische Installateur: derinstallateur.at

Page Load Speed

3.2 sec in total

First Response

320 ms

Resources Loaded

2.6 sec

Page Rendered

311 ms

derinstallateur.at screenshot

About Website

Visit derinstallateur.at now to see the best up-to-date Der Installateur content and also check out these interesting facts you probably never knew about derinstallateur.at

„Der österreichische Installateur“ ist seit 1948 das offizielle Organ der Bundesinnung der Sanitär-, Heizungs- und Lüftungstechniker Österreichs.

Visit derinstallateur.at

Key Findings

We analyzed Derinstallateur.at page load time and found that the first response time was 320 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

derinstallateur.at performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value490 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

Network Requests Diagram

derinstallateur.at

320 ms

derinstallateur.at

420 ms

www.derinstallateur.at

658 ms

css

29 ms

merged-326cfbf599d0faa799967b421d79c576-331288dead08c31e674180340bed02e0.css

296 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 58% of them (33 requests) were addressed to the original Derinstallateur.at, 32% (18 requests) were made to Platform.twitter.com and 4% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (965 ms) belongs to the original domain Derinstallateur.at.

Page Optimization Overview & Recommendations

Page size can be reduced by 106.3 kB (17%)

Content Size

613.8 kB

After Optimization

507.6 kB

  • HTML
  • Images

In fact, the total size of Derinstallateur.at main page is 613.8 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. 70% of websites need less resources to load. Images take 556.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 44.7 kB

  • Original 57.7 kB
  • After minification 49.0 kB
  • After compression 12.9 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 8.7 kB, which is 15% 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 44.7 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 61.6 kB

  • Original 556.2 kB
  • After minification 494.6 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, Der Installateur needs image optimization as it can save up to 61.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 21 (41%)

Requests Now

51

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Der Installateur. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

derinstallateur.at

derinstallateur.at

320 ms

derinstallateur.at

derinstallateur.at

420 ms

www.derinstallateur.at

www.derinstallateur.at

658 ms

css

css

29 ms

merged-326cfbf599d0faa799967b421d79c576-331288dead08c31e674180340bed02e0.css

merged-326cfbf599d0faa799967b421d79c576-331288dead08c31e674180340bed02e0.css

296 ms

csm_10_2024_SHK_Frauenpower_Burgenland_Energie_FH_Burgenland_Jessica_Bauer_31be7c1de6.jpg

csm_10_2024_SHK_Frauenpower_Burgenland_Energie_FH_Burgenland_Jessica_Bauer_31be7c1de6.jpg

508 ms

csm_15_Parl_Pechal_IMG_8280_c2a90bbb5a.jpeg

csm_15_Parl_Pechal_IMG_8280_c2a90bbb5a.jpeg

413 ms

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csm_Zusatzlaengen_TERRA__254d010370.png

606 ms

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CHILLVENTA.png

835 ms

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csm_EasyFlat_overview_9a5d9d2e41.jpg

510 ms

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merged-012eadfda143a6c80ee008ca37a49e0b-9df5a4d9cd508ef18f40817a44de37a6.js

805 ms

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607 ms

Form.min-65b4455567ce26d19eb1d1452499381d.js

Form.min-65b4455567ce26d19eb1d1452499381d.js

757 ms

PowermailCondition.min-e60d86988d69f0b00caf25bef4e3e5df.js

PowermailCondition.min-e60d86988d69f0b00caf25bef4e3e5df.js

654 ms

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cfd16b174d7f7b046e20adbc2e0a1094.js

702 ms

csm_hansgrohe_Wasserspartechnologien_highres_b504f2ea0d.jpg

csm_hansgrohe_Wasserspartechnologien_highres_b504f2ea0d.jpg

705 ms

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csm_PNR20189_5d94596cbb.jpg

858 ms

csm_Die_Luft-Wasser-WNrmepumpe_Logatherm_WLW186i_AR_eignet_sich_fAAr_Ein-_und_ZweifamilienhNuser_im_Neubau_und_Bestand._Im_Test_der_Stiftung_Warentest_hatte_sie_die_beste_Energieeffizienz._e853e585c5.jpg

csm_Die_Luft-Wasser-WNrmepumpe_Logatherm_WLW186i_AR_eignet_sich_fAAr_Ein-_und_ZweifamilienhNuser_im_Neubau_und_Bestand._Im_Test_der_Stiftung_Warentest_hatte_sie_die_beste_Energieeffizienz._e853e585c5.jpg

802 ms

csm_Daempfungssockel_ECO_1_0019eedd56.jpg

csm_Daempfungssockel_ECO_1_0019eedd56.jpg

803 ms

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csm_Flamco_VacuStream_5a5d4a6d08.jpg

859 ms

csm_WKW_Frau_in_der_Wirtschaft_Wien_praesentiert_Starke_Frauen__starke_Stadt_aa9ae2a255.jpg

csm_WKW_Frau_in_der_Wirtschaft_Wien_praesentiert_Starke_Frauen__starke_Stadt_aa9ae2a255.jpg

899 ms

csm_3-Natur-Klimadecke_8765baddfe.jpg

csm_3-Natur-Klimadecke_8765baddfe.jpg

901 ms

csm_Austria_Solar_Bei_Hitze_bis_36_Grad_laufen_1_4_Millionen_fossile_Kessel__ea8294b45a.jpg

csm_Austria_Solar_Bei_Hitze_bis_36_Grad_laufen_1_4_Millionen_fossile_Kessel__ea8294b45a.jpg

902 ms

csm_ma24009_Info_Schnellauslegung_e4723d388d.jpg

csm_ma24009_Info_Schnellauslegung_e4723d388d.jpg

921 ms

csm_Blauberg_Vento-Expert_Explosion_35e6d9804c.jpg

csm_Blauberg_Vento-Expert_Explosion_35e6d9804c.jpg

965 ms

csm_Hummel_SFE-Entleerventil_ee03316185.jpg

csm_Hummel_SFE-Entleerventil_ee03316185.jpg

965 ms

widgets.js

widgets.js

110 ms

fancy_closebox.png

fancy_closebox.png

355 ms

logo.svg

logo.svg

665 ms

ad.gif

ad.gif

664 ms

dachmarke_PNG.png

dachmarke_PNG.png

668 ms

linkedin.png

linkedin.png

689 ms

facebook-kreisformiges-logo__2_.png

facebook-kreisformiges-logo__2_.png

745 ms

twitter-logo.png

twitter-logo.png

746 ms

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memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

95 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

103 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

717 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

31 ms

settings

settings

95 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

4 ms

Gelber_Inst

Gelber_Inst

99 ms

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4 ms

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runtime-b1c52fd0a13ead5fcf6b.js

21 ms

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modules-96ebc7ac3ad66d681a3d.js

28 ms

main-babd9234dc048fb47339.js

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26 ms

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25 ms

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%5BscreenName%5D-0517bdda27d5006a5a2d.js

26 ms

_buildManifest.js

_buildManifest.js

26 ms

_ssgManifest.js

_ssgManifest.js

26 ms

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15 ms

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14 ms

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100 ms

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7 ms

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11 ms

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10 ms

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12 ms

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5893.d500bd2a89ded806aa73.js

9 ms

Accessibility Review

derinstallateur.at accessibility score

78

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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.

Best Practices

derinstallateur.at 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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

derinstallateur.at SEO score

84

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

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 Derinstallateur.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 Derinstallateur.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

derinstallateur.at

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