3.2 sec in total
17 ms
3 sec
106 ms
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Visit datahub.ioWe 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 55% of websites can load faster.
datahub.io performance score
name
value
score
weighting
Value2.7 s
60/100
10%
Value5.5 s
19/100
25%
Value3.6 s
86/100
10%
Value80 ms
99/100
30%
Value0
100/100
15%
Value4.3 s
85/100
10%
17 ms
2828 ms
8 ms
18 ms
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 size can be reduced by 397.0 kB (70%)
569.0 kB
171.9 kB
In fact, the total size of Datahub.io main page is 569.0 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 281.7 kB which makes up the majority of the site volume.
Potential reduce by 10.2 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.
Potential reduce by 138 B
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.
Potential reduce by 188.6 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.
Potential reduce by 198.1 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. 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.
Number of requests can be reduced by 8 (50%)
16
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.
datahub.io
17 ms
datahub.io
2828 ms
select2.css
8 ms
main.min.css
18 ms
font-awesome.min.css
15 ms
datahub.css
35 ms
geo-resource-styles.css
36 ms
jquery.min.js
44 ms
select2.min.js
55 ms
image-upload.min.js
62 ms
googleanalytics_event_tracking.js
61 ms
analytics.js
76 ms
logo.png
59 ms
visualise.jpg
59 ms
search.jpg
58 ms
od_80x15_blue.png
59 ms
ckan-logo-footer.png
59 ms
collect
23 ms
fontawesome-webfont.ttf
20 ms
datahub.io accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
datahub.io best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
datahub.io SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
EN
EN
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.
datahub.io
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: