Tools & Wizards About Us
delta.exchange screenshot

Report Summary

  • 3

    Performance

    Renders faster than
    19% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

delta.exchange

Delta Exchange – Cryptocurrency Derivatives | Bitcoin & Altcoin Futures - Delta Exchange

Page Load Speed

13.2 sec in total

First Response

1.4 sec

Resources Loaded

10.7 sec

Page Rendered

1.1 sec

delta.exchange screenshot

About Website

Visit delta.exchange now to see the best up-to-date Delta content for India and also check out these interesting facts you probably never knew about delta.exchange

Delta Exchange is a Crypto Options Trading Exchange for BTC, ETH, etc. Trade Ethereum & Bitcoin Options with Daily Expiries for Lowest Settlement Fees & Fast Withdrawals

Visit delta.exchange

Key Findings

We analyzed Delta.exchange page load time and found that the first response time was 1.4 sec and then it took 11.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

delta.exchange performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value16.5 s

0/100

25%

SI (Speed Index)

Value26.4 s

0/100

10%

TBT (Total Blocking Time)

Value62,650 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.51

15/100

15%

TTI (Time to Interactive)

Value78.5 s

0/100

10%

Network Requests Diagram

www.delta.exchange

1435 ms

6d87a79141d57fd9bac7.css

103 ms

5fe15289fb5435c7d416.css

87 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

234 ms

webpack-fecb3ef84527adca78b2.js

46 ms

Our browser made a total of 185 requests to load all elements on the main page. We found that 56% of them (104 requests) were addressed to the original Delta.exchange, 7% (13 requests) were made to Euc-widget.freshworks.com and 6% (12 requests) were made to D.adroll.com. The less responsive or slowest element that took the longest time to load (6.3 sec) relates to the external source P-api.delta.exchange.

Page Optimization Overview & Recommendations

Page size can be reduced by 261.6 kB (19%)

Content Size

1.4 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Delta.exchange main page is 1.4 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 243.6 kB

  • Original 317.4 kB
  • After minification 317.4 kB
  • After compression 73.9 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 243.6 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 15.5 kB

  • Original 1.0 MB
  • After minification 1.0 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. Delta images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 2.5 kB

  • Original 24.5 kB
  • After minification 24.5 kB
  • After compression 22.0 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

-14%

Potential reduce by 72 B

  • Original 498 B
  • After minification 498 B
  • After compression 426 B

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. Delta.exchange needs all CSS files to be minified and compressed as it can save up to 72 B or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 104 (63%)

Requests Now

164

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 164 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Delta. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 80 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.delta.exchange

www.delta.exchange

1435 ms

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Accessibility Review

delta.exchange accessibility score

75

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

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

delta.exchange best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the notification permission on page load

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

delta.exchange SEO score

77

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Delta.exchange can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Delta.exchange 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

delta.exchange

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