Tools & Wizards About Us
celstra.biz screenshot

Report Summary

  • 3

    Performance

    Renders faster than
    20% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

celstra.biz

Digital Solutions & Leading Mobility Software & Business Growth

Page Load Speed

6.1 sec in total

First Response

20 ms

Resources Loaded

5.3 sec

Page Rendered

832 ms

celstra.biz screenshot

About Website

Visit celstra.biz now to see the best up-to-date Celstra content and also check out these interesting facts you probably never knew about celstra.biz

We offer businesses like yours a range of opportunities to grow and improve your operations, by embracing the latest digital technologies and tools, available via our Mio App Platform. You can now pro...

Visit celstra.biz

Key Findings

We analyzed Celstra.biz page load time and found that the first response time was 20 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

celstra.biz performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.0 s

0/100

25%

SI (Speed Index)

Value25.3 s

0/100

10%

TBT (Total Blocking Time)

Value4,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.476

18/100

15%

TTI (Time to Interactive)

Value41.1 s

0/100

10%

Network Requests Diagram

celstra.biz

20 ms

www.celstra.com

2030 ms

script.js

60 ms

css

56 ms

global.css

24 ms

Our browser made a total of 203 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Celstra.biz, 88% (179 requests) were made to Celstra.com and 7% (15 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Celstra.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 784.1 kB (12%)

Content Size

6.7 MB

After Optimization

5.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Celstra.biz main page is 6.7 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 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 293.0 kB

  • Original 330.7 kB
  • After minification 309.0 kB
  • After compression 37.7 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 293.0 kB or 89% of the original size.

Image Optimization

-8%

Potential reduce by 440.7 kB

  • Original 5.2 MB
  • After minification 4.8 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. Celstra images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 17.2 kB

  • Original 681.5 kB
  • After minification 681.3 kB
  • After compression 664.3 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

-7%

Potential reduce by 33.2 kB

  • Original 465.5 kB
  • After minification 465.5 kB
  • After compression 432.2 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. Celstra.biz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 133 (75%)

Requests Now

178

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 178 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Celstra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 74 to 1 for JavaScripts and from 61 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

celstra.biz

celstra.biz

20 ms

www.celstra.com

www.celstra.com

2030 ms

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60 ms

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56 ms

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767 ms

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helper.min.js

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Accessibility Review

celstra.biz accessibility score

79

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-hidden="true"] elements contain focusable descendents

High

[role]s do not have all required [aria-*] attributes

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

celstra.biz best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

celstra.biz SEO score

92

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

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 Celstra.biz 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 Celstra.biz 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

celstra.biz

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