Tools & Wizards About Us
kost-sicherheitstechnik.de screenshot

Report Summary

  • 3

    Performance

    Renders faster than
    19% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 70% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

kost-sicherheitstechnik.de

Kost-Sicherheitstechnik

Page Load Speed

4.3 sec in total

First Response

330 ms

Resources Loaded

3.6 sec

Page Rendered

406 ms

kost-sicherheitstechnik.de screenshot

About Website

Welcome to kost-sicherheitstechnik.de homepage info - get ready to check Kost Sicherheitstechnik best content right away, or after learning these important things about kost-sicherheitstechnik.de

Sicherheitstechnik für Privat und Gewerbe. Kostenloser Sicherheitscheck für Ihre Immobilie. Profitieren Sie von unserem Fachwissen.

Visit kost-sicherheitstechnik.de

Key Findings

We analyzed Kost-sicherheitstechnik.de page load time and found that the first response time was 330 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

kost-sicherheitstechnik.de performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value6,950 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.863

4/100

15%

TTI (Time to Interactive)

Value14.5 s

9/100

10%

Network Requests Diagram

kost-sicherheitstechnik.de

330 ms

www.kost-sicherheitstechnik.de

1094 ms

adcff5ba6b4664f123fa59c4ba4b6242.js

468 ms

system.css

249 ms

general.css

229 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 98% of them (48 requests) were addressed to the original Kost-sicherheitstechnik.de, 2% (1 request) were made to Doworks.de. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Kost-sicherheitstechnik.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 421.2 kB (31%)

Content Size

1.4 MB

After Optimization

954.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kost-sicherheitstechnik.de main page is 1.4 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. 25% of websites need less resources to load. Images take 876.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 21.4 kB

  • Original 28.6 kB
  • After minification 27.0 kB
  • After compression 7.1 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 21.4 kB or 75% of the original size.

Image Optimization

-7%

Potential reduce by 58.8 kB

  • Original 876.6 kB
  • After minification 817.8 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. Kost Sicherheitstechnik images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 287.4 kB

  • Original 406.5 kB
  • After minification 398.9 kB
  • After compression 119.1 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 287.4 kB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 53.6 kB

  • Original 64.0 kB
  • After minification 43.6 kB
  • After compression 10.4 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. Kost-sicherheitstechnik.de needs all CSS files to be minified and compressed as it can save up to 53.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (9%)

Requests Now

47

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kost Sicherheitstechnik. 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 CSS and as a result speed up the page load time.

Network Requests Diagram

kost-sicherheitstechnik.de

kost-sicherheitstechnik.de

330 ms

www.kost-sicherheitstechnik.de

www.kost-sicherheitstechnik.de

1094 ms

adcff5ba6b4664f123fa59c4ba4b6242.js

adcff5ba6b4664f123fa59c4ba4b6242.js

468 ms

system.css

system.css

249 ms

general.css

general.css

229 ms

template.css

template.css

241 ms

system.css

system.css

124 ms

headteaser-run.jpg

headteaser-run.jpg

162 ms

kost-logo.png

kost-logo.png

136 ms

ABUS_Secvest2WAY_Aussensirene_slide.jpg

ABUS_Secvest2WAY_Aussensirene_slide.jpg

460 ms

zutrittskontrolle-croppedandscaled.jpg

zutrittskontrolle-croppedandscaled.jpg

359 ms

ABUS_Secvest-Fuink-Fenstersicherung_slide.jpg

ABUS_Secvest-Fuink-Fenstersicherung_slide.jpg

416 ms

3Anl04-3.jpg

3Anl04-3.jpg

422 ms

ABUS_CCTV-Monitor_Leitstelle_slide.jpg

ABUS_CCTV-Monitor_Leitstelle_slide.jpg

556 ms

versatel_logo.png

versatel_logo.png

280 ms

wappendortmund.png

wappendortmund.png

385 ms

MCFit.png

MCFit.png

564 ms

Hoerstke.png

Hoerstke.png

490 ms

Carlos.png

Carlos.png

532 ms

larrive.png

larrive.png

537 ms

Olympia.png

Olympia.png

561 ms

FutureX.png

FutureX.png

595 ms

Rummel.png

Rummel.png

637 ms

kost_icons_priv_h.png

kost_icons_priv_h.png

642 ms

kost_icons_bus_n.png

kost_icons_bus_n.png

657 ms

kost_icons_plan_d.png

kost_icons_plan_d.png

666 ms

abus_einbrecher2.jpg

abus_einbrecher2.jpg

792 ms

abus_ir-vario-auenkamera_anwendung.jpg

abus_ir-vario-auenkamera_anwendung.jpg

717 ms

abus_eyseo-zoomkamera_tankstellenshop_V1.jpg

abus_eyseo-zoomkamera_tankstellenshop_V1.jpg

847 ms

abus_videoberwachung_buchregal.jpg

abus_videoberwachung_buchregal.jpg

746 ms

au1314.jpg

au1314.jpg

980 ms

773b9fdc441ec89fb1823bf4aec70c6e.png

773b9fdc441ec89fb1823bf4aec70c6e.png

768 ms

877cf245f7a94e4de17d97037e3f3528.png

877cf245f7a94e4de17d97037e3f3528.png

822 ms

7025ad95f4cde2d19c05007e68e424b3.png

7025ad95f4cde2d19c05007e68e424b3.png

851 ms

5448ce37a1cd0aed2992608469135feb.png

5448ce37a1cd0aed2992608469135feb.png

875 ms

f758610416e19bb210d4ae69cb071db9.png

f758610416e19bb210d4ae69cb071db9.png

943 ms

4642358131233c418f4c5e1214a0ee41.png

4642358131233c418f4c5e1214a0ee41.png

944 ms

7a7867d1d69c1b60ffbbc18fdeb82da7.png

7a7867d1d69c1b60ffbbc18fdeb82da7.png

949 ms

2a529f2e035e026ffcb2905e292f4ffa.png

2a529f2e035e026ffcb2905e292f4ffa.png

955 ms

8a6c5b394fc31d45954172f346752a81.png

8a6c5b394fc31d45954172f346752a81.png

978 ms

f350a3fde76811c7abb1f8473a9365fc.png

f350a3fde76811c7abb1f8473a9365fc.png

996 ms

57ec4d7958691180418748761ba708e3.png

57ec4d7958691180418748761ba708e3.png

1028 ms

3610dea62dce3176e56c5a7830ff9806.png

3610dea62dce3176e56c5a7830ff9806.png

1025 ms

piwik.js

piwik.js

801 ms

be2dd1773a5f8088d79ad54206c9597f.png

be2dd1773a5f8088d79ad54206c9597f.png

938 ms

headmenu-run.jpg

headmenu-run.jpg

937 ms

headmenu-active-run.jpg

headmenu-active-run.jpg

830 ms

icon_16x16.png

icon_16x16.png

758 ms

print.css

print.css

112 ms

Accessibility Review

kost-sicherheitstechnik.de accessibility score

88

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

kost-sicherheitstechnik.de 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

Missing source maps for large first-party JavaScript

SEO Factors

kost-sicherheitstechnik.de SEO score

90

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

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 Kost-sicherheitstechnik.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 Kost-sicherheitstechnik.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

kost-sicherheitstechnik.de

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