Tools & Wizards About Us
delta.ru screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

delta.ru

Оказание охранных услуг и установка систем безопасности в Москве - официальный сайт компании Дельта

Page Load Speed

6.8 sec in total

First Response

517 ms

Resources Loaded

5 sec

Page Rendered

1.3 sec

delta.ru screenshot

About Website

Click here to check amazing Delta content for Russia. Otherwise, check out these important facts you probably never knew about delta.ru

Компания Дельта оказывает охранные услуги в Москве и области, а также производит монтаж систем безопасности

Visit delta.ru

Key Findings

We analyzed Delta.ru page load time and found that the first response time was 517 ms and then it took 6.3 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.ru performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value14.0 s

0/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value5,450 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.045

99/100

15%

TTI (Time to Interactive)

Value31.0 s

0/100

10%

Network Requests Diagram

delta.ru

517 ms

www.delta.ru

1043 ms

jquery.min.js

39 ms

jquery-3.6.1.min.js

27 ms

main.2a968be4ea48664b8e35.css

375 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 42% of them (38 requests) were addressed to the original Delta.ru, 6% (5 requests) were made to Mod.calltouch.ru and 4% (4 requests) were made to Mc.yandex.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Delta.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 253.4 kB (19%)

Content Size

1.3 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Delta.ru main page is 1.3 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. 60% of websites need less resources to load. Images take 525.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 140.3 kB

  • Original 177.0 kB
  • After minification 153.5 kB
  • After compression 36.7 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 23.5 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 140.3 kB or 79% of the original size.

Image Optimization

-11%

Potential reduce by 58.6 kB

  • Original 525.0 kB
  • After minification 466.4 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 58.6 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

-9%

Potential reduce by 45.7 kB

  • Original 490.0 kB
  • After minification 486.3 kB
  • After compression 444.3 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

-8%

Potential reduce by 8.7 kB

  • Original 107.5 kB
  • After minification 107.5 kB
  • After compression 98.8 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.ru has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 48 (55%)

Requests Now

88

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 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 36 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

delta.ru

delta.ru

517 ms

www.delta.ru

www.delta.ru

1043 ms

jquery.min.js

jquery.min.js

39 ms

jquery-3.6.1.min.js

jquery-3.6.1.min.js

27 ms

main.2a968be4ea48664b8e35.css

main.2a968be4ea48664b8e35.css

375 ms

api.js

api.js

93 ms

sdk-suggest-with-polyfills-latest.js

sdk-suggest-with-polyfills-latest.js

807 ms

1076 ms

main.aa5f42a44f4d0e00b2d7.js

main.aa5f42a44f4d0e00b2d7.js

1109 ms

sjtpixel.js

sjtpixel.js

652 ms

index.php

index.php

982 ms

gtm.js

gtm.js

251 ms

ga.js

ga.js

859 ms

v2.js

v2.js

1119 ms

box.png

box.png

403 ms

tag.js

tag.js

1343 ms

logo-gray-wo-bubble.svg

logo-gray-wo-bubble.svg

667 ms

menu-header-background.png

menu-header-background.png

670 ms

appstore_badge.png

appstore_badge.png

670 ms

googleplay_badge.png

googleplay_badge.png

664 ms

appgallery_badge.png

appgallery_badge.png

664 ms

close.png

close.png

816 ms

main-products.png

main-products.png

912 ms

ic_video.svg

ic_video.svg

816 ms

ic_flats.svg

ic_flats.svg

813 ms

ic_cottages.svg

ic_cottages.svg

814 ms

ic_bussiness.svg

ic_bussiness.svg

818 ms

ic_auto.svg

ic_auto.svg

944 ms

ic_skud.png

ic_skud.png

947 ms

ic_fire.png

ic_fire.png

956 ms

arrow-back.png

arrow-back.png

946 ms

main-support.png

main-support.png

1069 ms

ic_lk.png

ic_lk.png

1039 ms

ic_faq.svg

ic_faq.svg

1070 ms

ic_balance.svg

ic_balance.svg

1075 ms

ic_download.svg

ic_download.svg

1077 ms

ic_stock.svg

ic_stock.svg

1204 ms

split-logo-with-letters-color.svg

split-logo-with-letters-color.svg

1180 ms

split-logo-white.svg

split-logo-white.svg

1212 ms

solo-block.jpg

solo-block.jpg

1427 ms

expert-call_bg.png

expert-call_bg.png

1214 ms

bg_banner.png

bg_banner.png

1495 ms

btn_appstore_light.png

btn_appstore_light.png

1424 ms

btn_googleplay_light.png

btn_googleplay_light.png

1425 ms

btn_appgallery_light.png

btn_appgallery_light.png

1429 ms

clients-bg.jpg

clients-bg.jpg

1494 ms

vk.svg

vk.svg

1489 ms

whatsapp.svg

whatsapp.svg

1491 ms

back-to-top.png

back-to-top.png

1493 ms

init.js

init.js

1189 ms

embedded_chat.js

embedded_chat.js

56 ms

recaptcha__en.js

recaptcha__en.js

55 ms

js

js

149 ms

analytics.js

analytics.js

143 ms

destination

destination

140 ms

fbevents.js

fbevents.js

78 ms

code.js

code.js

1153 ms

DSPCounter.js

DSPCounter.js

1084 ms

342783679879558

342783679879558

216 ms

collect

collect

230 ms

collect

collect

239 ms

activityi;src=11445542;type=all_s0;cat=1_all0;ord=9220169759705;npa=0;auiddc=999516273.1722352808;u6=undefined;pscdl=noapi;frm=0;gtm=45fe47t0z872681123za201zb72681123;gcd=13l3l3l3l1;dma=0;tag_exp=95250752;epver=2;~oref=https%3A%2F%2Fwww.delta.ru%2F

activityi;src=11445542;type=all_s0;cat=1_all0;ord=9220169759705;npa=0;auiddc=999516273.1722352808;u6=undefined;pscdl=noapi;frm=0;gtm=45fe47t0z872681123za201zb72681123;gcd=13l3l3l3l1;dma=0;tag_exp=95250752;epver=2;~oref=https%3A%2F%2Fwww.delta.ru%2F

184 ms

combine

combine

175 ms

3560200064080315

3560200064080315

62 ms

src=11445542;type=all_s0;cat=1_all0;ord=9220169759705;npa=0;auiddc=*;u6=undefined;pscdl=noapi;frm=0;gtm=45fe47t0z872681123za201zb72681123;gcd=13l3l3l3l1;dma=0;tag_exp=95250752;epver=2;~oref=https%3A%2F%2Fwww.delta.ru%2F

src=11445542;type=all_s0;cat=1_all0;ord=9220169759705;npa=0;auiddc=*;u6=undefined;pscdl=noapi;frm=0;gtm=45fe47t0z872681123za201zb72681123;gcd=13l3l3l3l1;dma=0;tag_exp=95250752;epver=2;~oref=https%3A%2F%2Fwww.delta.ru%2F

115 ms

ga.js

ga.js

114 ms

openapi.c340c125c61ec5745ebb2a98626e46ab.js

openapi.c340c125c61ec5745ebb2a98626e46ab.js

408 ms

erle.cgi

erle.cgi

224 ms

erle.cgi

erle.cgi

219 ms

d_client_new.js

d_client_new.js

654 ms

AdRiverFPSN.js

AdRiverFPSN.js

862 ms

erle.cgi

erle.cgi

117 ms

script.js

script.js

693 ms

script.js

script.js

695 ms

advert.gif

advert.gif

667 ms

rtrg

rtrg

137 ms

sync-loader.js

sync-loader.js

793 ms

counter

counter

135 ms

dyn-goal-config.js

dyn-goal-config.js

251 ms

script.js

script.js

683 ms

s.html

s.html

596 ms

global_cookie.php

global_cookie.php

157 ms

sync_cookie_image_decide

sync_cookie_image_decide

150 ms

index.html

index.html

705 ms

s.js

s.js

144 ms

set_external_data.php

set_external_data.php

370 ms

set_external_data.php

set_external_data.php

381 ms

1

1

146 ms

1

1

122 ms

tracker

tracker

129 ms

Accessibility Review

delta.ru 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

button, link, and menuitem elements do not have accessible names.

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

<frame> or <iframe> elements do not have a title

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.

Best Practices

delta.ru 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

High

Missing source maps for large first-party JavaScript

SEO Factors

delta.ru SEO score

78

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    RU

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Delta.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Delta.ru main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

delta.ru

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: