Tools & Wizards About Us
stemmatters.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

stemmatters.com

Stemmatters | Portugal's fully integrated cell therapy CDMO

Page Load Speed

7.7 sec in total

First Response

343 ms

Resources Loaded

5.6 sec

Page Rendered

1.7 sec

stemmatters.com screenshot

About Website

Visit stemmatters.com now to see the best up-to-date Stemmatters content and also check out these interesting facts you probably never knew about stemmatters.com

Stemmatters offers CDMO services in cell therapies, tissue products and blood-derived biologicals, complemented with a hydrogel formulation platform.

Visit stemmatters.com

Key Findings

We analyzed Stemmatters.com page load time and found that the first response time was 343 ms and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

stemmatters.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value3,960 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

stemmatters.com

343 ms

www.stemmatters.com

1260 ms

materialdesignicons.css

679 ms

app.css

889 ms

aos.css

30 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 69% of them (35 requests) were addressed to the original Stemmatters.com, 10% (5 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Stemmatters.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 355.5 kB (9%)

Content Size

4.1 MB

After Optimization

3.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stemmatters.com main page is 4.1 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 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 27.1 kB

  • Original 33.8 kB
  • After minification 33.5 kB
  • After compression 6.7 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 27.1 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 246.2 kB

  • Original 3.7 MB
  • After minification 3.4 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. Stemmatters images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 62.5 kB

  • Original 305.2 kB
  • After minification 305.2 kB
  • After compression 242.7 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 62.5 kB or 20% of the original size.

CSS Optimization

-22%

Potential reduce by 19.8 kB

  • Original 89.0 kB
  • After minification 89.0 kB
  • After compression 69.3 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. Stemmatters.com needs all CSS files to be minified and compressed as it can save up to 19.8 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (40%)

Requests Now

43

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stemmatters. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

stemmatters.com

stemmatters.com

343 ms

www.stemmatters.com

www.stemmatters.com

1260 ms

materialdesignicons.css

materialdesignicons.css

679 ms

app.css

app.css

889 ms

aos.css

aos.css

30 ms

halftone.js

halftone.js

527 ms

js

js

65 ms

app.js

app.js

1181 ms

sticky-sidebar.js

sticky-sidebar.js

484 ms

svg-inject.js

svg-inject.js

489 ms

anime.js

anime.js

534 ms

smooth-scroll.js

smooth-scroll.js

603 ms

google-maps.js

google-maps.js

607 ms

js

js

57 ms

aos.js

aos.js

11 ms

headroom.js

headroom.js

143 ms

jQuery.headroom.js

jQuery.headroom.js

153 ms

haftone_init.js

haftone_init.js

681 ms

css

css

27 ms

img7.jpg

img7.jpg

972 ms

img6.jpg

img6.jpg

1087 ms

img5.jpg

img5.jpg

848 ms

img4.jpg

img4.jpg

731 ms

img3.jpg

img3.jpg

785 ms

logo_white.png

logo_white.png

600 ms

menu_close.svg

menu_close.svg

732 ms

logo.png

logo.png

1071 ms

img9.jpg

img9.jpg

1474 ms

analysis_.svg

analysis_.svg

914 ms

quality.svg

quality.svg

971 ms

project.svg

project.svg

1028 ms

img11.jpg

img11.jpg

1953 ms

img14.jpg

img14.jpg

1865 ms

img16.jpg

img16.jpg

1824 ms

img18.jpg

img18.jpg

1754 ms

img4.jpg

img4.jpg

1702 ms

img3.jpg

img3.jpg

2370 ms

img12.jpg

img12.jpg

2439 ms

img17.jpg

img17.jpg

2831 ms

Service_brochure_.jpg

Service_brochure_.jpg

3161 ms

portugal.jpg

portugal.jpg

2859 ms

js

js

66 ms

analytics.js

analytics.js

20 ms

va9E4kDNxMZdWfMOD5Vvl4jNazX3dA.woff

va9E4kDNxMZdWfMOD5Vvl4jNazX3dA.woff

36 ms

va9B4kDNxMZdWfMOD5VnPKreRhf8Xl7Glw.woff

va9B4kDNxMZdWfMOD5VnPKreRhf8Xl7Glw.woff

36 ms

va9f4kDNxMZdWfMOD5VvkrByRCf4VF_klULW.woff

va9f4kDNxMZdWfMOD5VvkrByRCf4VF_klULW.woff

59 ms

va9f4kDNxMZdWfMOD5VvkrA6Qif4VF_klULW.woff

va9f4kDNxMZdWfMOD5VvkrA6Qif4VF_klULW.woff

96 ms

va9C4kDNxMZdWfMOD5VvkrjJYTTVdlTO.woff

va9C4kDNxMZdWfMOD5VvkrjJYTTVdlTO.woff

96 ms

materialdesignicons-webfont.woff

materialdesignicons-webfont.woff

2809 ms

collect

collect

61 ms

collect

collect

46 ms

Accessibility Review

stemmatters.com accessibility score

70

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA progressbar elements do not have accessible names.

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

Form elements do not have associated labels

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

Best Practices

stemmatters.com best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

stemmatters.com SEO score

77

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    PT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stemmatters.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Portuguese language. Our system also found out that Stemmatters.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

stemmatters.com

Open Graph data is detected on the main page of Stemmatters. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: