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Report Summary

  • 81

    Performance

    Renders faster than
    87% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

celldatasci.com

Powerful RNA and DNA Extraction from Cell Data Sciences

Page Load Speed

639 ms in total

First Response

34 ms

Resources Loaded

411 ms

Page Rendered

194 ms

celldatasci.com screenshot

About Website

Welcome to celldatasci.com homepage info - get ready to check Cell Data Sci best content right away, or after learning these important things about celldatasci.com

Cell Data Sciences provides advanced solutions for unlocking genetic information from difficult samples, including formalin-fixed (FFPE) samples. The company's products, such as the RNAstorm and DNAst...

Visit celldatasci.com

Key Findings

We analyzed Celldatasci.com page load time and found that the first response time was 34 ms and then it took 605 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

celldatasci.com performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

94/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value590 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.026

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

celldatasci.com

34 ms

celldatasci.com

41 ms

main.css

10 ms

jquery-3.2.1.slim.min.js

23 ms

popper.min.js

22 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 59% of them (10 requests) were addressed to the original Celldatasci.com, 12% (2 requests) were made to Google-analytics.com and 6% (1 request) were made to Cdn.heapanalytics.com. The less responsive or slowest element that took the longest time to load (156 ms) relates to the external source Cdn.heapanalytics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.9 kB (17%)

Content Size

206.3 kB

After Optimization

171.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Celldatasci.com main page is 206.3 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. Images take 111.9 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 5.7 kB

  • Original 8.6 kB
  • After minification 7.1 kB
  • After compression 2.9 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. This page needs HTML code to be minified as it can gain 1.5 kB, which is 18% 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 5.7 kB or 66% of the original size.

Image Optimization

-26%

Potential reduce by 28.8 kB

  • Original 111.9 kB
  • After minification 83.1 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, Cell Data Sci needs image optimization as it can save up to 28.8 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 251 B

  • Original 65.0 kB
  • After minification 65.0 kB
  • After compression 64.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 120 B

  • Original 20.9 kB
  • After minification 20.9 kB
  • After compression 20.8 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. Celldatasci.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (36%)

Requests Now

14

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cell Data Sci. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

celldatasci.com

celldatasci.com

34 ms

celldatasci.com

celldatasci.com

41 ms

main.css

main.css

10 ms

jquery-3.2.1.slim.min.js

jquery-3.2.1.slim.min.js

23 ms

popper.min.js

popper.min.js

22 ms

bootstrap.min.js

bootstrap.min.js

37 ms

analytics.js

analytics.js

56 ms

celldata-logo.png

celldata-logo.png

48 ms

helix.png

helix.png

30 ms

celldata-logo-black.png

celldata-logo-black.png

30 ms

heap-216833524.js

heap-216833524.js

156 ms

collect

collect

13 ms

montserrat-regular-webfont.woff

montserrat-regular-webfont.woff

59 ms

collect

collect

38 ms

js

js

107 ms

ga-audiences

ga-audiences

49 ms

h

h

84 ms

Accessibility Review

celldatasci.com accessibility score

51

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

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

celldatasci.com best practices score

75

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

SEO Factors

celldatasci.com SEO score

88

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

High

Tap targets are not sized appropriately

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 Celldatasci.com 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 Celldatasci.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

celldatasci.com

Open Graph description is not detected on the main page of Cell Data Sci. 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: