Tools & Wizards About Us
astell.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

astell.com

Experts in Sterilizers & Autoclaves | Astell UK

Page Load Speed

3.3 sec in total

First Response

243 ms

Resources Loaded

1.7 sec

Page Rendered

1.3 sec

astell.com screenshot

About Website

Click here to check amazing Astell content. Otherwise, check out these important facts you probably never knew about astell.com

Astell UK is the leading autoclave manufacturer, offering a range of Sterilizers and Autoclaves from 33-2,000 Litres.

Visit astell.com

Key Findings

We analyzed Astell.com page load time and found that the first response time was 243 ms and then it took 3.1 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

astell.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

65/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value570 ms

52/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.8 s

45/100

10%

Network Requests Diagram

astell.com

243 ms

astell.com

651 ms

gtm.js

134 ms

css

46 ms

theme.css

162 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 69% of them (37 requests) were addressed to the original Astell.com, 13% (7 requests) were made to 0 and 11% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (811 ms) relates to the external source .

Page Optimization Overview & Recommendations

Page size can be reduced by 154.0 kB (40%)

Content Size

388.3 kB

After Optimization

234.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Astell.com main page is 388.3 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. 55% of websites need less resources to load. HTML takes 157.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 127.7 kB

  • Original 157.4 kB
  • After minification 134.3 kB
  • After compression 29.7 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. This page needs HTML code to be minified as it can gain 23.1 kB, which is 15% 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 127.7 kB or 81% of the original size.

Image Optimization

-34%

Potential reduce by 20.3 kB

  • Original 59.3 kB
  • After minification 39.0 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, Astell needs image optimization as it can save up to 20.3 kB or 34% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-4%

Potential reduce by 4.6 kB

  • Original 115.6 kB
  • After minification 115.6 kB
  • After compression 111.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 1.3 kB

  • Original 56.1 kB
  • After minification 56.1 kB
  • After compression 54.7 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. Astell.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (24%)

Requests Now

46

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astell. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

astell.com

astell.com

243 ms

astell.com

astell.com

651 ms

gtm.js

gtm.js

134 ms

css

css

46 ms

theme.css

theme.css

162 ms

uploader.css

uploader.css

239 ms

STG072%20for%20web%20Front45.webp

STG072%20for%20web%20Front45.webp

431 ms

jquery.js

jquery.js

313 ms

main.js

main.js

473 ms

cookieControl-8.x.min.js

cookieControl-8.x.min.js

52 ms

cookie-consent.js

cookie-consent.js

337 ms

framework.combined-min.js

framework.combined-min.js

336 ms

framework.extras-min.css

framework.extras-min.css

336 ms

form.js

form.js

336 ms

dropzone.js

dropzone.js

336 ms

file-multi.js

file-multi.js

418 ms

AMB.webp

AMB.webp

542 ms

AMA-COMP.webp

AMA-COMP.webp

540 ms

AMA.webp

AMA.webp

541 ms

ASB.webp

ASB.webp

542 ms

MNS-C.webp

MNS-C.webp

539 ms

MNS-E.webp

MNS-E.webp

567 ms

SQUARE.webp

SQUARE.webp

573 ms

SQUAREMAX.webp

SQUAREMAX.webp

658 ms

PASSTHROUGH.webp

PASSTHROUGH.webp

580 ms

EDS.webp

EDS.webp

657 ms

Paralogo.webp

Paralogo.webp

581 ms

NELLDORN.webp

NELLDORN.webp

632 ms

HEARSON.webp

HEARSON.webp

651 ms

trio.png

trio.png

658 ms

service-01.png

service-01.png

664 ms

140Years.webp

140Years.webp

711 ms

question.png

question.png

731 ms

Duaclaves%20Both.webp

Duaclaves%20Both.webp

541 ms

AstellBioRedirect-01.webp

AstellBioRedirect-01.webp

649 ms

csm_CantorNissel_62059e92a7.webp

csm_CantorNissel_62059e92a7.webp

425 ms

Astell_catalogue.webp

Astell_catalogue.webp

542 ms

EnergyConservationAutoclave3.webp

EnergyConservationAutoclave3.webp

742 ms

_I8A0196A%20with%20graphic%20RGB.webp

_I8A0196A%20with%20graphic%20RGB.webp

811 ms

arrow.svg

arrow.svg

478 ms

csm_Pressure_gauges_stainless_banner_double_size_a1dacfc11e.webp

csm_Pressure_gauges_stainless_banner_double_size_a1dacfc11e.webp

560 ms

slate-arrow.svg

slate-arrow.svg

486 ms

csm_World_map_banner_158f490e93.webp

csm_World_map_banner_158f490e93.webp

564 ms

csm_Range_banner_doube_size_dc6277416a.webp

csm_Range_banner_doube_size_dc6277416a.webp

541 ms

EDSWebsiteBannerFade-06.webp

EDSWebsiteBannerFade-06.webp

553 ms

csm_Astell_home_findoutmore_06.12.16_5e09d2c780.webp

csm_Astell_home_findoutmore_06.12.16_5e09d2c780.webp

558 ms

Emergency_Stop_final.webp

Emergency_Stop_final.webp

563 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

101 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdr.ttf

101 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdr.ttf

119 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdr.ttf

127 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

58 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

57 ms

check

check

52 ms

Accessibility Review

astell.com accessibility score

75

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

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.

Best Practices

astell.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

astell.com SEO score

76

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

Page is blocked from indexing

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 Astell.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 Astell.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

astell.com

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