Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

datahub.io

Home | DataHub - Frictionless Data

Page Load Speed

3.2 sec in total

First Response

17 ms

Resources Loaded

3 sec

Page Rendered

106 ms

datahub.io screenshot

About Website

Visit datahub.io now to see the best up-to-date Data Hub content for India and also check out these interesting facts you probably never knew about datahub.io

Find, Share and Publish Quality Data Online. The fastest way for individuals, teams and organizations to publish, deploy and share their data.

Visit datahub.io

Key Findings

We analyzed Datahub.io page load time and found that the first response time was 17 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

datahub.io performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.3 s

85/100

10%

Network Requests Diagram

datahub.io

17 ms

datahub.io

2828 ms

select2.css

8 ms

main.min.css

18 ms

font-awesome.min.css

15 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 89% of them (17 requests) were addressed to the original Datahub.io, 11% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Datahub.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 397.1 kB (70%)

Content Size

567.8 kB

After Optimization

170.8 kB

In fact, the total size of Datahub.io main page is 567.8 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. 35% of websites need less resources to load. Javascripts take 280.5 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 10.2 kB

  • Original 13.6 kB
  • After minification 10.4 kB
  • After compression 3.5 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 3.2 kB, which is 24% 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 10.2 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 138 B

  • Original 36.0 kB
  • After minification 35.9 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. Data Hub images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 188.6 kB

  • Original 280.5 kB
  • After minification 279.3 kB
  • After compression 91.9 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 188.6 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 198.1 kB

  • Original 237.6 kB
  • After minification 229.0 kB
  • After compression 39.5 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. Datahub.io needs all CSS files to be minified and compressed as it can save up to 198.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (50%)

Requests Now

16

After Optimization

8

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Hub. 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.

Accessibility Review

datahub.io accessibility score

54

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

datahub.io best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

datahub.io SEO score

92

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

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 Datahub.io 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 Datahub.io 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 Data Hub. 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: