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vitables.org screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

vitables.org

Overview | ViTables

Page Load Speed

242 ms in total

First Response

41 ms

Resources Loaded

120 ms

Page Rendered

81 ms

vitables.org screenshot

About Website

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

ViTables 3.0 is a GUI for browsing files in PyTables/HDF5 format. Enjoy with it navigating smoothly tables with hundreds of millions of rows.

Visit vitables.org

Key Findings

We analyzed Vitables.org page load time and found that the first response time was 41 ms and then it took 201 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

vitables.org performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

vitables.org

41 ms

bootstrap.min.css

13 ms

rst.css

9 ms

code.css

11 ms

colorbox.css

20 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that all of those requests were addressed to Vitables.org and no external sources were called. The less responsive or slowest element that took the longest time to load (41 ms) belongs to the original domain Vitables.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 115.5 kB (82%)

Content Size

140.2 kB

After Optimization

24.7 kB

  • HTML
  • CSS

In fact, the total size of Vitables.org main page is 140.2 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. 30% of websites need less resources to load. CSS take 133.4 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 4.8 kB

  • Original 6.9 kB
  • After minification 5.8 kB
  • After compression 2.1 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. This page needs HTML code to be minified as it can gain 1.0 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 4.8 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 110.7 kB

  • Original 133.4 kB
  • After minification 127.8 kB
  • After compression 22.6 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. Vitables.org needs all CSS files to be minified and compressed as it can save up to 110.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (73%)

Requests Now

11

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vi Tables. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vitables.org

vitables.org

41 ms

bootstrap.min.css

bootstrap.min.css

13 ms

rst.css

rst.css

9 ms

code.css

code.css

11 ms

colorbox.css

colorbox.css

20 ms

theme.css

theme.css

19 ms

jquery.min.js

jquery.min.js

34 ms

bootstrap.min.js

bootstrap.min.js

20 ms

moment-with-locales.min.js

moment-with-locales.min.js

23 ms

fancydates.js

fancydates.js

20 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

19 ms

logo_2.svg

logo_2.svg

20 ms

Accessibility Review

vitables.org accessibility score

98

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.

Best Practices

vitables.org best practices score

83

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

Page has valid source maps

SEO Factors

vitables.org SEO score

100

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vitables.org 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 Vitables.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

vitables.org

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