Tools & Wizards About Us
rcsys.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

rcsys.com

RC Systems - Text to Speech and Voice Synthesis Products

Page Load Speed

786 ms in total

First Response

118 ms

Resources Loaded

577 ms

Page Rendered

91 ms

rcsys.com screenshot

About Website

Welcome to rcsys.com homepage info - get ready to check RC Sys best content right away, or after learning these important things about rcsys.com

Text to speech, voice synthesis and voice recording solutions, perfect for embedded applications. Plug-in modules, chips, and portable devices. Data sheets and product info.

Visit rcsys.com

Key Findings

We analyzed Rcsys.com page load time and found that the first response time was 118 ms and then it took 668 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

rcsys.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value1.6 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

rcsys.com

118 ms

rcsys.com

140 ms

main.css

35 ms

menu.css

67 ms

blockerror.js

97 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that all of those requests were addressed to Rcsys.com and no external sources were called. The less responsive or slowest element that took the longest time to load (219 ms) belongs to the original domain Rcsys.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.1 kB (30%)

Content Size

56.9 kB

After Optimization

39.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rcsys.com main page is 56.9 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. Only 10% of websites need less resources to load. Images take 33.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 8.5 kB

  • Original 11.2 kB
  • After minification 11.1 kB
  • After compression 2.7 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 8.5 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 60 B

  • Original 33.6 kB
  • After minification 33.5 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. RC Sys images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 4.6 kB

  • Original 7.1 kB
  • After minification 6.0 kB
  • After compression 2.5 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 4.6 kB or 65% of the original size.

CSS Optimization

-78%

Potential reduce by 3.9 kB

  • Original 5.0 kB
  • After minification 3.8 kB
  • After compression 1.1 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. Rcsys.com needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (57%)

Requests Now

21

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RC Sys. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rcsys.com

rcsys.com

118 ms

rcsys.com

rcsys.com

140 ms

main.css

main.css

35 ms

menu.css

menu.css

67 ms

blockerror.js

blockerror.js

97 ms

header.js

header.js

101 ms

footer.js

footer.js

96 ms

menu.js

menu.js

99 ms

menu_items.js

menu_items.js

95 ms

menu_tpl.js

menu_tpl.js

103 ms

bg.gif

bg.gif

34 ms

h_welcom.gif

h_welcom.gif

33 ms

bullet2.gif

bullet2.gif

33 ms

intro.gif

intro.gif

219 ms

spacer.gif

spacer.gif

34 ms

partner.jpg

partner.jpg

33 ms

header2.jpg

header2.jpg

62 ms

header1.jpg

header1.jpg

93 ms

lev0_bg1.gif

lev0_bg1.gif

61 ms

i_02.gif

i_02.gif

63 ms

i_03.gif

i_03.gif

64 ms

i_05.gif

i_05.gif

93 ms

i_04.gif

i_04.gif

93 ms

Accessibility Review

rcsys.com accessibility score

61

Accessibility Issues

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

High

Links do not have a discernible name

Best Practices

rcsys.com 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

SEO Factors

rcsys.com SEO score

69

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rcsys.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Rcsys.com main page’s claimed encoding is iso-8859-1. 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

rcsys.com

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