Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

delta.ir

سایت خرید و فروش - رهن و اجاره خانه در سر تا سر ایران | دلتا

Page Load Speed

8.1 sec in total

First Response

759 ms

Resources Loaded

6 sec

Page Rendered

1.3 sec

delta.ir screenshot

About Website

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

ﺧﺮﯾﺪ و ﻓﺮوش، رﻫﻦ و اﺟﺎره آﭘﺎرﺗﻤﺎن، ﺧﺎﻧﻪ، زﻣﯿﻦ، ﺗﺠﺎری و اداری. دلتا اولین وبسایت ملکی ایران با بیش از نیم قرن تجربه، آﮔﺎﻫﺎﻧﻪ و ﻫﻮﺷﻤﻨﺪاﻧﻪ ﺟﺴﺖ و ﺟﻮ ﮐﻨﯿﺪ و ملک مورد نظر خود را پیدا کنید.

Visit delta.ir

Key Findings

We analyzed Delta.ir page load time and found that the first response time was 759 ms and then it took 7.4 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

delta.ir performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value1,000 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.206

60/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

delta.ir

759 ms

www.delta.ir

1752 ms

bootstrap.min.css

1143 ms

base.css

811 ms

jquery.mCustomScrollbar.css

652 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 69% of them (36 requests) were addressed to the original Delta.ir, 23% (12 requests) were made to Old.delta.ir and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Delta.ir.

Page Optimization Overview & Recommendations

Page size can be reduced by 926.3 kB (66%)

Content Size

1.4 MB

After Optimization

484.2 kB

In fact, the total size of Delta.ir 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. 30% of websites need less resources to load. Javascripts take 794.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 86.3 kB

  • Original 106.9 kB
  • After minification 87.7 kB
  • After compression 20.7 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. This page needs HTML code to be minified as it can gain 19.2 kB, which is 18% 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 86.3 kB or 81% of the original size.

Image Optimization

-11%

Potential reduce by 30.9 kB

  • Original 277.2 kB
  • After minification 246.3 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. Obviously, Delta needs image optimization as it can save up to 30.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-78%

Potential reduce by 616.5 kB

  • Original 794.5 kB
  • After minification 596.5 kB
  • After compression 178.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 616.5 kB or 78% of the original size.

CSS Optimization

-83%

Potential reduce by 192.6 kB

  • Original 231.9 kB
  • After minification 212.1 kB
  • After compression 39.3 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. Delta.ir needs all CSS files to be minified and compressed as it can save up to 192.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (40%)

Requests Now

43

After Optimization

26

The browser has sent 43 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 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

delta.ir accessibility score

56

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

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

High

Links do not have a discernible name

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

delta.ir 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

delta.ir SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    FA

  • 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.ir can be misinterpreted by Google and other search engines. Our service has detected that Persian 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.ir 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: