Tools & Wizards About Us
astellas.us screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

astellas.us

Homepage | Astellas

Page Load Speed

3.2 sec in total

First Response

36 ms

Resources Loaded

3 sec

Page Rendered

163 ms

astellas.us screenshot

About Website

Welcome to astellas.us homepage info - get ready to check Astellas best content for United States right away, or after learning these important things about astellas.us

Astellas is a global life sciences company turning science into value for patients through transformative therapies. Discover how we're pioneering new healthcare solutions.

Visit astellas.us

Key Findings

We analyzed Astellas.us page load time and found that the first response time was 36 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

astellas.us performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

astellas.us

36 ms

961 ms

OtAutoBlock.js

69 ms

otSDKStub.js

85 ms

css_4kJMbUo_Mnaa6X4NIzPNjt11ao8BfjWLfG55QmgvRW4.css

29 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Astellas.us, 85% (29 requests) were made to Astellas.com and 9% (3 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Astellas.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 78.9 kB (13%)

Content Size

621.4 kB

After Optimization

542.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Astellas.us main page is 621.4 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 391.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 54.8 kB

  • Original 67.7 kB
  • After minification 63.3 kB
  • After compression 12.9 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 54.8 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 23.8 kB

  • Original 391.4 kB
  • After minification 367.6 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. Astellas images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 115 B

  • Original 100.0 kB
  • After minification 100.0 kB
  • After compression 99.9 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

-0%

Potential reduce by 132 B

  • Original 62.2 kB
  • After minification 62.2 kB
  • After compression 62.1 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. Astellas.us has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (22%)

Requests Now

27

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astellas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

astellas.us

astellas.us

36 ms

961 ms

OtAutoBlock.js

OtAutoBlock.js

69 ms

otSDKStub.js

otSDKStub.js

85 ms

css_4kJMbUo_Mnaa6X4NIzPNjt11ao8BfjWLfG55QmgvRW4.css

css_4kJMbUo_Mnaa6X4NIzPNjt11ao8BfjWLfG55QmgvRW4.css

29 ms

css_dktR-9RcJCk9N1kFWRlBQFlyqpuvcS6i5LJbTavZnfY.css

css_dktR-9RcJCk9N1kFWRlBQFlyqpuvcS6i5LJbTavZnfY.css

65 ms

js_qpoJG4dufssLmkwV5QBziG4dB8Ni3c6PZ34g3D5h7QQ.js

js_qpoJG4dufssLmkwV5QBziG4dB8Ni3c6PZ34g3D5h7QQ.js

134 ms

gtm.js

gtm.js

40 ms

gtag.js

gtag.js

70 ms

js_yODmB_WBnRdBKNLiDmofx7fKdlspGQ_FEN40OghPQVk.js

js_yODmB_WBnRdBKNLiDmofx7fKdlspGQ_FEN40OghPQVk.js

46 ms

79af2de1-3015-4845-b3a6-85e18055cced.json

79af2de1-3015-4845-b3a6-85e18055cced.json

52 ms

logo.svg

logo.svg

21 ms

pc-menu-expand.png

pc-menu-expand.png

24 ms

chevron-right.svg

chevron-right.svg

23 ms

AS_Carousel_1100x500_Michael-1.jpg

AS_Carousel_1100x500_Michael-1.jpg

27 ms

AS_100%20Best%20Companies_2023-2_Carousel_1100x500.jpg

AS_100%20Best%20Companies_2023-2_Carousel_1100x500.jpg

28 ms

AS_Working%20Parents_2023-3_Carousel_1100x500.jpg

AS_Working%20Parents_2023-3_Carousel_1100x500.jpg

25 ms

Astellas_GlobalDiversityMonth_SM-4_Carousel_1100x500.jpg

Astellas_GlobalDiversityMonth_SM-4_Carousel_1100x500.jpg

53 ms

Astellas_DEI%20Best%20Place%20to%20Work%202023%20Graphics-3_1100x500_carousel%20updated%207-17-23.jpg

Astellas_DEI%20Best%20Place%20to%20Work%202023%20Graphics-3_1100x500_carousel%20updated%207-17-23.jpg

47 ms

AS_WorkingwithCancer_SM_Graphics_WebCarousel_1100x500-2_1.jpg

AS_WorkingwithCancer_SM_Graphics_WebCarousel_1100x500-2_1.jpg

53 ms

Astellas_Shontelle_Marci_Womens%20Health_Web-2_1100x500_Carousel.jpg

Astellas_Shontelle_Marci_Womens%20Health_Web-2_1100x500_Carousel.jpg

47 ms

Astellas_PatientClinicalTrials_Website_1100x500.jpg

Astellas_PatientClinicalTrials_Website_1100x500.jpg

49 ms

U.S.A..png

U.S.A..png

59 ms

logo_white.svg

logo_white.svg

82 ms

solgan_en.svg

solgan_en.svg

64 ms

facebook_footer.png

facebook_footer.png

79 ms

linkedin_footer.png

linkedin_footer.png

94 ms

X%20logo-white-footer.png

X%20logo-white-footer.png

74 ms

NotoSansUIRegular.woff

NotoSansUIRegular.woff

1364 ms

NotoSansUIBold.woff

NotoSansUIBold.woff

1407 ms

location

location

40 ms

NotoSansCJKjp-Bold_move.woff

NotoSansCJKjp-Bold_move.woff

1722 ms

NotoSansCJKjp-Regular_move.woff

NotoSansCJKjp-Regular_move.woff

1654 ms

fontello.woff

fontello.woff

767 ms

Accessibility Review

astellas.us accessibility score

93

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

Best Practices

astellas.us best practices score

83

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

astellas.us SEO score

90

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

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 Astellas.us 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 Astellas.us 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

astellas.us

Open Graph description is not detected on the main page of Astellas. 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: