Tools & Wizards About Us
zse.de screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zse.de

ZSE Electronic GmbH – Dehnungsmessstreifen, Messtechnik, Messdatenerfassung

Page Load Speed

5.4 sec in total

First Response

367 ms

Resources Loaded

4.7 sec

Page Rendered

353 ms

zse.de screenshot

About Website

Visit zse.de now to see the best up-to-date ZSE content and also check out these interesting facts you probably never knew about zse.de

Seit 1981 bietet ZSE eine umfangreiche Produktpalette im Bereich Dehnungsmessstreifen, Messtechnik, Messdatenerfassung und Sensorik an.

Visit zse.de

Key Findings

We analyzed Zse.de page load time and found that the first response time was 367 ms and then it took 5.1 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

zse.de performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value6.8 s

34/100

10%

TBT (Total Blocking Time)

Value1,470 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.155

74/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

Network Requests Diagram

zse.de

367 ms

zse.de

434 ms

www.zse.de

837 ms

style.global.css

840 ms

combined.min.js

991 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that all of those requests were addressed to Zse.de and no external sources were called. The less responsive or slowest element that took the longest time to load (991 ms) belongs to the original domain Zse.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (46%)

Content Size

4.7 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zse.de main page is 4.7 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. 60% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 304.9 kB

  • Original 349.9 kB
  • After minification 349.5 kB
  • After compression 45.0 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 304.9 kB or 87% of the original size.

Image Optimization

-23%

Potential reduce by 668.6 kB

  • Original 2.9 MB
  • After minification 2.2 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. Obviously, ZSE needs image optimization as it can save up to 668.6 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 463.8 kB

  • Original 643.4 kB
  • After minification 643.2 kB
  • After compression 179.5 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 463.8 kB or 72% of the original size.

CSS Optimization

-89%

Potential reduce by 724.9 kB

  • Original 815.0 kB
  • After minification 806.2 kB
  • After compression 90.1 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. Zse.de needs all CSS files to be minified and compressed as it can save up to 724.9 kB or 89% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

43

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZSE. According to our analytics all requests are already optimized.

Network Requests Diagram

zse.de

zse.de

367 ms

zse.de

zse.de

434 ms

www.zse.de

www.zse.de

837 ms

style.global.css

style.global.css

840 ms

combined.min.js

combined.min.js

991 ms

logo.png

logo.png

410 ms

Active-Load-Emulator-LGE_.jpg

Active-Load-Emulator-LGE_.jpg

610 ms

blank.gif

blank.gif

424 ms

KYOWA_Logo_Claim.png

KYOWA_Logo_Claim.png

426 ms

mantracourt-logo.png

mantracourt-logo.png

514 ms

Parker.png

Parker.png

538 ms

DEWESoft_Logo.png

DEWESoft_Logo.png

538 ms

DJB_Logo.png

DJB_Logo.png

619 ms

FBGS_Logo1.png

FBGS_Logo1.png

646 ms

dynalabs_logo.png

dynalabs_logo.png

647 ms

logo-transpolis-neu_dark.png

logo-transpolis-neu_dark.png

714 ms

web_logo_.gif

web_logo_.gif

722 ms

ElastiSense_logo_POS_WEB.png

ElastiSense_logo_POS_WEB.png

986 ms

logo_.png

logo_.png

985 ms

graph.cfm

graph.cfm

987 ms

logo.svg

logo.svg

252 ms

ic_arrow_select.svg

ic_arrow_select.svg

251 ms

OpenSansCondensed-Light.ttf

OpenSansCondensed-Light.ttf

193 ms

OpenSansCondensed-Bold.ttf

OpenSansCondensed-Bold.ttf

192 ms

RobotoCondensed-Regular.ttf

RobotoCondensed-Regular.ttf

384 ms

RobotoCondensed-Light.ttf

RobotoCondensed-Light.ttf

383 ms

RobotoCondensed-Bold.ttf

RobotoCondensed-Bold.ttf

384 ms

default.ttf

default.ttf

191 ms

ajaxController.cfc

ajaxController.cfc

386 ms

CTRS-100A_800.png

CTRS-100A_800.png

209 ms

example-sirius.png

example-sirius.png

217 ms

DS-Serie_800___.png

DS-Serie_800___.png

109 ms

GQ7_5501.png

GQ7_5501.png

214 ms

Slider_B24_.png

Slider_B24_.png

307 ms

example-lord.png

example-lord.png

414 ms

mv5-ar_800.png

mv5-ar_800.png

314 ms

G-Link-200_web1.jpg

G-Link-200_web1.jpg

323 ms

gx5-ahrs_0_.png

gx5-ahrs_0_.png

324 ms

Product-family-alternative-angle_v4_500.png

Product-family-alternative-angle_v4_500.png

416 ms

IH_impact-hammer-selection_.png

IH_impact-hammer-selection_.png

410 ms

kspb_keyvisual_01.png

kspb_keyvisual_01.png

417 ms

6c105e06-5013-48ca-af4f-a3aed654fdbe.jpg

6c105e06-5013-48ca-af4f-a3aed654fdbe.jpg

431 ms

dscusb_800.jpg

dscusb_800.jpg

432 ms

New-SGA.jpg

New-SGA.jpg

516 ms

kfrs_pcb_1.jpg

kfrs_pcb_1.jpg

518 ms

pcd-400a_keyvisual_01.png

pcd-400a_keyvisual_01.png

524 ms

edx-10_series_.png

edx-10_series_.png

520 ms

strain-gauge-amplifier_800_.jpg

strain-gauge-amplifier_800_.jpg

544 ms

Sirius_ACC_Multi_Cnt_Sbox_800n.jpg

Sirius_ACC_Multi_Cnt_Sbox_800n.jpg

540 ms

sirius_mini_acc_accp.299_1280.png

sirius_mini_acc_accp.299_1280.png

646 ms

dynalabs_pm_20_800.jpg

dynalabs_pm_20_800.jpg

639 ms

dms_schulungen.png

dms_schulungen.png

678 ms

print.global.css

print.global.css

130 ms

Accessibility Review

zse.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.

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

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

zse.de best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

zse.de SEO score

83

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

High

Document doesn't have a valid hreflang

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 Zse.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 Zse.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

zse.de

Open Graph data is detected on the main page of ZSE. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: