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amprius.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

amprius.com

Amprius Technologies Silicon Anode Batteries

Page Load Speed

5 sec in total

First Response

64 ms

Resources Loaded

3.9 sec

Page Rendered

1.1 sec

amprius.com screenshot

About Website

Welcome to amprius.com homepage info - get ready to check Amprius best content right away, or after learning these important things about amprius.com

Amprius Technologies Silicon Anode Batteries Provide Breakthrough Performance in Energy Density and Cycle Life

Visit amprius.com

Key Findings

We analyzed Amprius.com page load time and found that the first response time was 64 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

amprius.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value16.4 s

0/100

25%

SI (Speed Index)

Value9.1 s

13/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.086

93/100

15%

TTI (Time to Interactive)

Value15.5 s

7/100

10%

Network Requests Diagram

amprius.com

64 ms

amprius.com

3104 ms

css

189 ms

blocks.style.build.css

8 ms

cookie-law-info-public.css

16 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 72% of them (38 requests) were addressed to the original Amprius.com, 19% (10 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Clarity.ms. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Amprius.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 131.4 kB (3%)

Content Size

4.5 MB

After Optimization

4.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Amprius.com main page is 4.5 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. Only a small number of websites need less resources to load. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 113.6 kB

  • Original 137.3 kB
  • After minification 135.5 kB
  • After compression 23.7 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 113.6 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 2.0 kB

  • Original 4.1 MB
  • After minification 4.1 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. Amprius images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 13.4 kB

  • Original 221.4 kB
  • After minification 221.4 kB
  • After compression 207.9 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

-5%

Potential reduce by 2.5 kB

  • Original 53.6 kB
  • After minification 53.4 kB
  • After compression 51.2 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. Amprius.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (50%)

Requests Now

38

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Amprius. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

amprius.com

amprius.com

64 ms

amprius.com

amprius.com

3104 ms

css

css

189 ms

blocks.style.build.css

blocks.style.build.css

8 ms

cookie-law-info-public.css

cookie-law-info-public.css

16 ms

cookie-law-info-gdpr.css

cookie-law-info-gdpr.css

14 ms

style.min.css

style.min.css

16 ms

ethos.css

ethos.css

20 ms

style.css

style.css

33 ms

jquery.min.js

jquery.min.js

17 ms

jquery-migrate.min.js

jquery-migrate.min.js

25 ms

cookie-law-info-public.js

cookie-law-info-public.js

26 ms

js

js

220 ms

gsap.min.js

gsap.min.js

24 ms

ScrollTrigger.min.js

ScrollTrigger.min.js

24 ms

lottie.min.js

lottie.min.js

28 ms

cookie-law-info-table.css

cookie-law-info-table.css

165 ms

cs-classic.7.5.6.js

cs-classic.7.5.6.js

179 ms

script.min.js

script.min.js

27 ms

x.js

x.js

179 ms

new-tab.js

new-tab.js

185 ms

b0xprp4r3x

b0xprp4r3x

205 ms

logo-rw@2x.png

logo-rw@2x.png

57 ms

Homepage-HERO-Image.jpg

Homepage-HERO-Image.jpg

58 ms

amprius-logo-white.png

amprius-logo-white.png

56 ms

SiMaxx_SiCore-Cell-Image.png

SiMaxx_SiCore-Cell-Image.png

82 ms

Amprius25470_1920.jpg

Amprius25470_1920.jpg

279 ms

SiCore-1-Cell.png

SiCore-1-Cell.png

57 ms

Amprius_Newsletter_Image.jpg

Amprius_Newsletter_Image.jpg

192 ms

RC-Highlight-Image.jpg

RC-Highlight-Image.jpg

84 ms

Aerial-View-of-New-Factory-in-CO_2000.jpg

Aerial-View-of-New-Factory-in-CO_2000.jpg

85 ms

silicone-amprius-02.png

silicone-amprius-02.png

84 ms

KARI-Image-2.jpg

KARI-Image-2.jpg

152 ms

SiMaxx_SiCore-Cell-Image.jpg

SiMaxx_SiCore-Cell-Image.jpg

85 ms

Safe-Cell-Development-Program.jpg

Safe-Cell-Development-Program.jpg

206 ms

SQA-ISO9001_800.png

SQA-ISO9001_800.png

87 ms

SQA-AS9100-2016_800.png

SQA-AS9100-2016_800.png

86 ms

iso-9001-2015-certification_orig@2x.png

iso-9001-2015-certification_orig@2x.png

230 ms

fa-solid-900.ttf

fa-solid-900.ttf

133 ms

fa-light-300.ttf

fa-light-300.ttf

134 ms

fa-regular-400.ttf

fa-regular-400.ttf

461 ms

clarity.js

clarity.js

21 ms

KFOlCnqEu92Fr1MmSU5fChc9.ttf

KFOlCnqEu92Fr1MmSU5fChc9.ttf

25 ms

KFOmCnqEu92Fr1Mu7GxP.ttf

KFOmCnqEu92Fr1Mu7GxP.ttf

50 ms

KFOlCnqEu92Fr1MmWUlfChc9.ttf

KFOlCnqEu92Fr1MmWUlfChc9.ttf

64 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w3aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w3aX8.ttf

65 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w3aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w3aX8.ttf

65 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw3aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw3aX8.ttf

66 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Hw3aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Hw3aX8.ttf

66 ms

KFOjCnqEu92Fr1Mu51TjASc0CsE.ttf

KFOjCnqEu92Fr1Mu51TjASc0CsE.ttf

63 ms

KFOkCnqEu92Fr1Mu51xGIzc.ttf

KFOkCnqEu92Fr1Mu51xGIzc.ttf

66 ms

KFOjCnqEu92Fr1Mu51TzBic0CsE.ttf

KFOjCnqEu92Fr1Mu51TzBic0CsE.ttf

66 ms

c.gif

c.gif

7 ms

Accessibility Review

amprius.com accessibility score

96

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.

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

amprius.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

amprius.com SEO score

86

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

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

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 Amprius.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 Amprius.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

amprius.com

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