Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

delta.exchange

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

Page Load Speed

3 sec in total

First Response

309 ms

Resources Loaded

2 sec

Page Rendered

734 ms

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 309 ms and then it took 2.7 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

delta.exchange performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value3,540 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

www.delta.exchange

309 ms

d2817a11383d26a5.css

102 ms

a6ff16479dc95e20.css

51 ms

polyfills-c67a75d1b6f99dc8.js

297 ms

webpack-21692a64149a75c7.js

70 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 98% of them (42 requests) were addressed to the original Delta.exchange, 2% (1 request) were made to Static.cloudflareinsights.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Delta.exchange.

Page Optimization Overview & Recommendations

Page size can be reduced by 194.3 kB (23%)

Content Size

834.0 kB

After Optimization

639.7 kB

In fact, the total size of Delta.exchange main page is 834.0 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. 40% of websites need less resources to load. Images take 609.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 164.6 kB

  • Original 223.7 kB
  • After minification 223.6 kB
  • After compression 59.1 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 164.6 kB or 74% of the original size.

Image Optimization

-5%

Potential reduce by 29.7 kB

  • Original 609.7 kB
  • After minification 580.0 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. Delta images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 17 B

  • Original 655 B
  • After minification 655 B
  • After compression 638 B

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.

Requests Breakdown

Number of requests can be reduced by 15 (36%)

Requests Now

42

After Optimization

27

The browser has sent 42 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 16 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

delta.exchange accessibility score

87

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

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

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

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

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

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

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

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 Delta.exchange 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 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

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: