Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

nlpca.org

NLPCA - nonlinear PCA - auto-associative neural networks - autoencoder bottleneck neural networks - Matthias Scholz

Page Load Speed

949 ms in total

First Response

245 ms

Resources Loaded

549 ms

Page Rendered

155 ms

nlpca.org screenshot

About Website

Welcome to nlpca.org homepage info - get ready to check NLPCA best content right away, or after learning these important things about nlpca.org

Nonlinear principal component analysis (NLPCA) based on auto-associative neural networks, also known as autoencoder, replicator networks, bottleneck or sandglass type networks.

Visit nlpca.org

Key Findings

We analyzed Nlpca.org page load time and found that the first response time was 245 ms and then it took 704 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

nlpca.org performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value1.3 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)

Value1.2 s

100/100

10%

Network Requests Diagram

nlpca.org

245 ms

style.css

280 ms

fig_NLPCA_bottleneck_autoassociative_autoencoder_neural_network_thumb340.png

102 ms

fig_pca_small.png

200 ms

fig_nlpca_nonlinear_PCA_autoencoder_circle_small.png

201 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 88% of them (7 requests) were addressed to the original Nlpca.org, 13% (1 request) were made to Matthias-scholz.de. The less responsive or slowest element that took the longest time to load (280 ms) relates to the external source Matthias-scholz.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 25.9 kB (53%)

Content Size

48.5 kB

After Optimization

22.6 kB

In fact, the total size of Nlpca.org main page is 48.5 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 5% of websites need less resources to load. Images take 25.4 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 9.6 kB

  • Original 13.5 kB
  • After minification 12.6 kB
  • After compression 3.9 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 9.6 kB or 71% of the original size.

Image Optimization

-31%

Potential reduce by 7.8 kB

  • Original 25.4 kB
  • After minification 17.6 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. Obviously, NLPCA needs image optimization as it can save up to 7.8 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-88%

Potential reduce by 8.5 kB

  • Original 9.7 kB
  • After minification 5.6 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. Nlpca.org needs all CSS files to be minified and compressed as it can save up to 8.5 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NLPCA. According to our analytics all requests are already optimized.

Accessibility Review

nlpca.org accessibility score

83

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

nlpca.org 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

nlpca.org SEO score

69

Search Engine Optimization Advices

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 Nlpca.org 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 Nlpca.org 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

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