Tools & Wizards About Us
rt-science.de screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

rt-science.de

Welcome

Page Load Speed

1.1 sec in total

First Response

386 ms

Resources Loaded

663 ms

Page Rendered

81 ms

rt-science.de screenshot

About Website

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

Developement of Scientiffic Software

Visit rt-science.de

Key Findings

We analyzed Rt-science.de page load time and found that the first response time was 386 ms and then it took 744 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

rt-science.de performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value1.0 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

rt-science.de

386 ms

nth_theme_vector_arrow_blocks_bg.gif

93 ms

nav_7_index_bhb.gif

184 ms

nav_6_intro_tv.gif

184 ms

nav_6_products_tv.gif

185 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Rt-science.de and no external sources were called. The less responsive or slowest element that took the longest time to load (386 ms) belongs to the original domain Rt-science.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.0 kB (35%)

Content Size

14.1 kB

After Optimization

9.1 kB

  • HTML
  • Images

In fact, the total size of Rt-science.de main page is 14.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 7.1 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 4.9 kB

  • Original 7.0 kB
  • After minification 6.6 kB
  • After compression 2.0 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 4.9 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 27 B

  • Original 7.1 kB
  • After minification 7.1 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. Rt Science images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 5 (56%)

Requests Now

9

After Optimization

4

  • Images

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rt Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

rt-science.de

rt-science.de

386 ms

nth_theme_vector_arrow_blocks_bg.gif

nth_theme_vector_arrow_blocks_bg.gif

93 ms

nav_7_index_bhb.gif

nav_7_index_bhb.gif

184 ms

nav_6_intro_tv.gif

nav_6_intro_tv.gif

184 ms

nav_6_products_tv.gif

nav_6_products_tv.gif

185 ms

nav_6_11_tv.gif

nav_6_11_tv.gif

186 ms

nav_6_12_tv.gif

nav_6_12_tv.gif

193 ms

PlotLogo45.png

PlotLogo45.png

193 ms

ToolsLogo45.png

ToolsLogo45.png

275 ms

nth_theme_vector_arrow_blocks_hr.gif

nth_theme_vector_arrow_blocks_hr.gif

275 ms

Accessibility Review

rt-science.de accessibility score

58

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

rt-science.de best practices score

67

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

rt-science.de SEO score

67

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rt-science.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Rt-science.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

rt-science.de

Open Graph description is not detected on the main page of Rt Science. 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: