Tools & Wizards About Us
calvium.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

calvium.com

Mobile & Web App Development, Bristol | Digital Placemaking

Page Load Speed

2.9 sec in total

First Response

237 ms

Resources Loaded

1.9 sec

Page Rendered

699 ms

calvium.com screenshot

About Website

Click here to check amazing Calvium content for India. Otherwise, check out these important facts you probably never knew about calvium.com

Specialists in designing and developing stellar digital solutions that deliver business critical services and engaging customer experiences.

Visit calvium.com

Key Findings

We analyzed Calvium.com page load time and found that the first response time was 237 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

calvium.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value1,970 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.4 s

30/100

10%

Network Requests Diagram

calvium.com

237 ms

calvium.com

396 ms

style.min.css

82 ms

styles.css

160 ms

pagenavi-css.css

280 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 75% of them (44 requests) were addressed to the original Calvium.com, 8% (5 requests) were made to Gstatic.com and 7% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (825 ms) belongs to the original domain Calvium.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 247.8 kB (5%)

Content Size

5.3 MB

After Optimization

5.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Calvium.com main page is 5.3 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. 65% of websites need less resources to load. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 60.2 kB

  • Original 77.0 kB
  • After minification 66.6 kB
  • After compression 16.8 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 10.4 kB, which is 13% 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 60.2 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 157.3 kB

  • Original 4.9 MB
  • After minification 4.7 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. Calvium images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 13.2 kB

  • Original 328.2 kB
  • After minification 328.2 kB
  • After compression 315.0 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

-25%

Potential reduce by 17.1 kB

  • Original 67.0 kB
  • After minification 66.9 kB
  • After compression 49.9 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. Calvium.com needs all CSS files to be minified and compressed as it can save up to 17.1 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

54

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Calvium. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

calvium.com

calvium.com

237 ms

calvium.com

calvium.com

396 ms

style.min.css

style.min.css

82 ms

styles.css

styles.css

160 ms

pagenavi-css.css

pagenavi-css.css

280 ms

application.min.css

application.min.css

363 ms

application.min.css

application.min.css

366 ms

plugins.min.js

plugins.min.js

438 ms

main.min.js

main.min.js

285 ms

f6d5d6e177.js

f6d5d6e177.js

56 ms

api.js

api.js

43 ms

wp-polyfill.min.js

wp-polyfill.min.js

285 ms

index.js

index.js

359 ms

calvium-title.png

calvium-title.png

90 ms

AwardWinner2x-e1667298146816.png

AwardWinner2x-e1667298146816.png

89 ms

semi-circles.png

semi-circles.png

90 ms

rsz_mika-baumeister-dhlzenomjji-unsplash-1-e1581350565802-1-768x388.jpg

rsz_mika-baumeister-dhlzenomjji-unsplash-1-e1581350565802-1-768x388.jpg

180 ms

FOD-RRLogo-04.png

FOD-RRLogo-04.png

90 ms

JAM-NHS-Whitechapel-scaled-1-e1667306919232-768x555.jpeg

JAM-NHS-Whitechapel-scaled-1-e1667306919232-768x555.jpeg

180 ms

NEL-Logo-Right-Aligned-JPG-1-e1667299464314.png

NEL-Logo-Right-Aligned-JPG-1-e1667299464314.png

180 ms

NavSta-Case-Study-BG-02-768x512.jpg

NavSta-Case-Study-BG-02-768x512.jpg

286 ms

DfT-Department-for-Transport-White-e1667300953243.png

DfT-Department-for-Transport-White-e1667300953243.png

182 ms

47761364752_982971cf5e_k-768x511.jpg

47761364752_982971cf5e_k-768x511.jpg

180 ms

Qintetiq-logo-white-e1667299429602.png

Qintetiq-logo-white-e1667299429602.png

268 ms

Tilly-Lockey-Alita-Main-Image-1-768x512.jpeg

Tilly-Lockey-Alita-Main-Image-1-768x512.jpeg

344 ms

OpenBionics-CaseStudyImagery_Logo-1.png

OpenBionics-CaseStudyImagery_Logo-1.png

284 ms

shutterstock_550205302-1-768x512.jpg

shutterstock_550205302-1-768x512.jpg

285 ms

Yodel-Logo-e1667299303795.png

Yodel-Logo-e1667299303795.png

348 ms

arrow-right-1.png

arrow-right-1.png

319 ms

quote-graphic.png

quote-graphic.png

344 ms

Louise_Phillips.jpg

Louise_Phillips.jpg

657 ms

CLVM-Mark-Gennotte.jpeg

CLVM-Mark-Gennotte.jpeg

347 ms

amybeckett.jpeg

amybeckett.jpeg

615 ms

BEBE-Melissa-Baralt-Photo.jpg

BEBE-Melissa-Baralt-Photo.jpg

396 ms

1517434407950.jpg

1517434407950.jpg

405 ms

Products-range.png

Products-range.png

825 ms

Award@2x.png

Award@2x.png

424 ms

calvium-circle.png

calvium-circle.png

475 ms

iso9001.jpg

iso9001.jpg

780 ms

iso27001.jpg

iso27001.jpg

815 ms

cyber-essentials.png

cyber-essentials.png

552 ms

cyber-essentials2.png

cyber-essentials2.png

630 ms

JOSCAR-Logo.png

JOSCAR-Logo.png

691 ms

MS-Logo-White.png

MS-Logo-White.png

711 ms

matomo.js

matomo.js

693 ms

matomo.js

matomo.js

62 ms

recaptcha__en.js

recaptcha__en.js

41 ms

ajax-loader.gif

ajax-loader.gif

684 ms

matomo.php

matomo.php

472 ms

anchor

anchor

38 ms

styles__ltr.css

styles__ltr.css

4 ms

recaptcha__en.js

recaptcha__en.js

12 ms

KMCqiV_wEkJTwFI21kyzyBiD2M1KubXhmTExSqPSBNU.js

KMCqiV_wEkJTwFI21kyzyBiD2M1KubXhmTExSqPSBNU.js

37 ms

webworker.js

webworker.js

64 ms

logo_48.png

logo_48.png

25 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

42 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

43 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

45 ms

recaptcha__en.js

recaptcha__en.js

10 ms

Accessibility Review

calvium.com accessibility score

92

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.

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

Image elements do not have [alt] attributes

Best Practices

calvium.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

calvium.com SEO score

83

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

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 Calvium.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 Calvium.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

calvium.com

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