Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

sciencellonline.com

ScienCell Research Laboratories

Page Load Speed

3.5 sec in total

First Response

152 ms

Resources Loaded

3.1 sec

Page Rendered

210 ms

sciencellonline.com screenshot

About Website

Visit sciencellonline.com now to see the best up-to-date Scien Cell Online content for United States and also check out these interesting facts you probably never knew about sciencellonline.com

Largest Primary Cell Provider: supplying researchers with human and animal cells + medium/supplements, 3D cell culture products, gene analysis tools & more!

Visit sciencellonline.com

Key Findings

We analyzed Sciencellonline.com page load time and found that the first response time was 152 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

sciencellonline.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value770 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.154

75/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

sciencellonline.com

152 ms

www.sciencellonline.com

1383 ms

2c41181a989ef467eeeac540f4d7162b.css

383 ms

719334fd069d25ffdeefbb41ef93e818.js

766 ms

admin_backend.css

130 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 79% of them (42 requests) were addressed to the original Sciencellonline.com, 6% (3 requests) were made to Static.olark.com and 4% (2 requests) were made to Verify.authorize.net. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Sciencellonline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 494.3 kB (25%)

Content Size

2.0 MB

After Optimization

1.5 MB

In fact, the total size of Sciencellonline.com main page is 2.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 92.9 kB

  • Original 107.0 kB
  • After minification 93.9 kB
  • After compression 14.1 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 13.1 kB, which is 12% 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 92.9 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 47.3 kB

  • Original 1.5 MB
  • After minification 1.4 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. Scien Cell Online images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 85.7 kB

  • Original 140.7 kB
  • After minification 127.4 kB
  • After compression 55.0 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 85.7 kB or 61% of the original size.

CSS Optimization

-86%

Potential reduce by 268.4 kB

  • Original 312.2 kB
  • After minification 250.7 kB
  • After compression 43.8 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. Sciencellonline.com needs all CSS files to be minified and compressed as it can save up to 268.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (29%)

Requests Now

48

After Optimization

34

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Scien Cell Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

sciencellonline.com accessibility score

97

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

sciencellonline.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

sciencellonline.com SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencellonline.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 Sciencellonline.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 description is not detected on the main page of Scien Cell Online. 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: