Access datascan.com. Home

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

datascan.com

257 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Datascan.com and no external sources were called. The less responsive or slowest element that took the longest time to load (257 ms) belongs to the original domain Datascan.com.

Content Size

4.0 MB

After Optimization

2.6 MB

In fact, the total size of Datascan.com main page is 4.0 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 192.7 kB

Original 241.3 kB
After minification 241.2 kB
After compression 48.6 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 192.7 kB or 80% of the original size.

Image Optimization

-14%

Potential reduce by 394.8 kB

Original 2.7 MB
After minification 2.3 MB

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, Datascan needs image optimization as it can save up to 394.8 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 400.4 kB

Original 569.1 kB
After minification 545.2 kB
After compression 168.7 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 400.4 kB or 70% of the original size.

CSS Optimization

-86%

Potential reduce by 349.7 kB

Original 405.4 kB
After minification 374.4 kB
After compression 55.8 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. Datascan.com needs all CSS files to be minified and compressed as it can save up to 349.7 kB or 86% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Datascan.com 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 Datascan.com 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 data is detected on the main page of PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: