Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

atcc.org

ATCC: The Global Bioresource Center | ATCC

Page Load Speed

222 ms in total

First Response

31 ms

Resources Loaded

125 ms

Page Rendered

66 ms

atcc.org screenshot

About Website

Welcome to atcc.org homepage info - get ready to check ATCC best content for China right away, or after learning these important things about atcc.org

ATCC is a nonprofit organization that collects, stores, and distributes standard reference microorganisms, cell lines, and other materials for research and development.

Visit atcc.org

Key Findings

We analyzed Atcc.org page load time and found that the first response time was 31 ms and then it took 191 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. This domain responded with an error, which can significantly jeopardize Atcc.org rating and web reputation

Performance Metrics

atcc.org performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value3,760 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value25.3 s

0/100

10%

Network Requests Diagram

atcc.org

31 ms

cf.errors.css

8 ms

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

71 ms

browser-bar.png

4 ms

cf-no-screenshot-error.png

12 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 80% of them (4 requests) were addressed to the original Atcc.org, 20% (1 request) were made to Static.cloudflareinsights.com. The less responsive or slowest element that took the longest time to load (71 ms) relates to the external source Static.cloudflareinsights.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.1 kB (23%)

Content Size

13.4 kB

After Optimization

10.3 kB

In fact, the total size of Atcc.org main page is 13.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. HTML takes 4.9 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 3.0 kB

  • Original 4.9 kB
  • After minification 4.5 kB
  • After compression 1.9 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. 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 3.0 kB or 61% of the original size.

Image Optimization

-0%

Potential reduce by 5 B

  • Original 3.9 kB
  • After minification 3.9 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. ATCC images are well optimized though.

CSS Optimization

-2%

Potential reduce by 75 B

  • Original 4.5 kB
  • After minification 4.5 kB
  • After compression 4.4 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. Atcc.org has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ATCC. According to our analytics all requests are already optimized.

Accessibility Review

atcc.org accessibility score

78

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

atcc.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

atcc.org SEO score

84

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

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Atcc.org 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 Atcc.org 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 ATCC. 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: