Tools & Wizards About Us
rs-232.de screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

rs-232.de

Serielle Schnittstelle, rs232-schnittstelle, Serial cards to support PCIe & PCI Express, Serial I/O, Serial Port I/O, Parallel cards, parallel Dongles...

Page Load Speed

2.1 sec in total

First Response

379 ms

Resources Loaded

1.5 sec

Page Rendered

139 ms

rs-232.de screenshot

About Website

Welcome to rs-232.de homepage info - get ready to check RS 232 best content right away, or after learning these important things about rs-232.de

Serielle Schnittstellen Karten, rs232-schnittstelle, Serial I/O, Serial Port I/O,16fach serielle Schnittstellen 8fach serielle kommunikation. 8fach serielle Schnittstellen Karten. 4fach serielle Schni...

Visit rs-232.de

Key Findings

We analyzed Rs-232.de page load time and found that the first response time was 379 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

rs-232.de performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.064

97/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

rs-232.de

379 ms

rs-232.de

400 ms

sc1.js

194 ms

styles3.css

290 ms

title_cable.jpg

192 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that all of those requests were addressed to Rs-232.de and no external sources were called. The less responsive or slowest element that took the longest time to load (400 ms) belongs to the original domain Rs-232.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 26.7 kB (18%)

Content Size

146.9 kB

After Optimization

120.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rs-232.de main page is 146.9 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. 15% of websites need less resources to load. Images take 90.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 14.1 kB

  • Original 19.2 kB
  • After minification 18.5 kB
  • After compression 5.1 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 14.1 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 2.4 kB

  • Original 90.9 kB
  • After minification 88.5 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. RS 232 images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 9.6 kB

  • Original 33.6 kB
  • After minification 33.6 kB
  • After compression 24.0 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 9.6 kB or 29% of the original size.

CSS Optimization

-19%

Potential reduce by 594 B

  • Original 3.2 kB
  • After minification 3.2 kB
  • After compression 2.6 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. Rs-232.de needs all CSS files to be minified and compressed as it can save up to 594 B or 19% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RS 232. According to our analytics all requests are already optimized.

Network Requests Diagram

rs-232.de

rs-232.de

379 ms

rs-232.de

rs-232.de

400 ms

sc1.js

sc1.js

194 ms

styles3.css

styles3.css

290 ms

title_cable.jpg

title_cable.jpg

192 ms

adlogo2.gif

adlogo2.gif

96 ms

back01.gif

back01.gif

191 ms

mp4pciers232.jpg

mp4pciers232.jpg

370 ms

mp16rs232pcix.jpg

mp16rs232pcix.jpg

377 ms

scom.png

scom.png

285 ms

commex2.gif

commex2.gif

286 ms

cookieconsent.min.css

cookieconsent.min.css

96 ms

cookieconsent.min.js

cookieconsent.min.js

98 ms

Accessibility Review

rs-232.de accessibility score

86

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Best Practices

rs-232.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

rs-232.de SEO score

62

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    DE

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rs-232.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed German language. Our system also found out that Rs-232.de main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

rs-232.de

Open Graph description is not detected on the main page of RS 232. 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: