Tools & Wizards About Us
costar.ru screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

costar.ru

Page Load Speed

4.8 sec in total

First Response

578 ms

Resources Loaded

3.8 sec

Page Rendered

440 ms

costar.ru screenshot

About Website

Visit costar.ru now to see the best up-to-date Costar content and also check out these interesting facts you probably never knew about costar.ru

Домен costar.ru продаётся. Цена: 75 000,00 р. Категории: Бизнес - Бизнес (другое); Товары - Товары (другое); Разное - Словарные слова (англ). Вся информация о домене в магазине доменов Рег.ру.

Visit costar.ru

Key Findings

We analyzed Costar.ru page load time and found that the first response time was 578 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

costar.ru performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value14.5 s

0/100

25%

SI (Speed Index)

Value9.0 s

15/100

10%

TBT (Total Blocking Time)

Value2,830 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.067

97/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

costar.ru

578 ms

manifest.3a3a04ed93f3a7a6f850.js

236 ms

head-scripts.2ff7329da5c555107564.js

360 ms

design-system.e37fb26f5769a4208584.js

604 ms

shims.b18bb090e38254503d29.js

528 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Costar.ru, 6% (4 requests) were made to Files.reg.ru and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Files.reg.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 248.2 kB (56%)

Content Size

447.0 kB

After Optimization

198.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Costar.ru main page is 447.0 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. 60% of websites need less resources to load. HTML takes 270.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 232.6 kB

  • Original 270.1 kB
  • After minification 206.0 kB
  • After compression 37.5 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 64.1 kB, which is 24% 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 232.6 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 1.3 kB

  • Original 31.2 kB
  • After minification 29.9 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. Costar images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 43 B

  • Original 84.9 kB
  • After minification 84.9 kB
  • After compression 84.9 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

-23%

Potential reduce by 14.2 kB

  • Original 60.8 kB
  • After minification 60.8 kB
  • After compression 46.6 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. Costar.ru needs all CSS files to be minified and compressed as it can save up to 14.2 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (80%)

Requests Now

54

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Costar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

costar.ru

costar.ru

578 ms

manifest.3a3a04ed93f3a7a6f850.js

manifest.3a3a04ed93f3a7a6f850.js

236 ms

head-scripts.2ff7329da5c555107564.js

head-scripts.2ff7329da5c555107564.js

360 ms

design-system.e37fb26f5769a4208584.js

design-system.e37fb26f5769a4208584.js

604 ms

shims.b18bb090e38254503d29.js

shims.b18bb090e38254503d29.js

528 ms

analytics.64dedfbb73de3cd3df39.js

analytics.64dedfbb73de3cd3df39.js

724 ms

design-system.41669e8265cfd6184da6.css

design-system.41669e8265cfd6184da6.css

597 ms

all.0387a61b07cc2611aadd.css

all.0387a61b07cc2611aadd.css

1001 ms

envybox-control.06544bd3d60d07a9d3c4.css

envybox-control.06544bd3d60d07a9d3c4.css

571 ms

all-body.75140de978a3b0400a34.css

all-body.75140de978a3b0400a34.css

653 ms

domain-shop-lot.944c42ca376313773902.css

domain-shop-lot.944c42ca376313773902.css

777 ms

old-vendors.778d11e18d99c99276f0.js

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1117 ms

vendors.cf88964b6dd7b30e8c3d.js

vendors.cf88964b6dd7b30e8c3d.js

1037 ms

all.dd618adc4a1b29bc1510.js

all.dd618adc4a1b29bc1510.js

1119 ms

all-body.83558bd386d4d70d8332.js

all-body.83558bd386d4d70d8332.js

739 ms

domain-shop-lot.28bee0706ae65986d4ac.js

domain-shop-lot.28bee0706ae65986d4ac.js

1035 ms

regional-phone.ed7d85f96ef2cfce0caf.js

regional-phone.ed7d85f96ef2cfce0caf.js

1035 ms

gtm.js

gtm.js

78 ms

b-icon_style_cross.svg

b-icon_style_cross.svg

483 ms

ds-icons__client_white.svg

ds-icons__client_white.svg

506 ms

ds-icons__arrow-dropdown_color-font-primary-main.svg

ds-icons__arrow-dropdown_color-font-primary-main.svg

528 ms

ds-icons__search_color-font-primary-main.svg

ds-icons__search_color-font-primary-main.svg

582 ms

ds-icons__search_color-font-secondary-accent.svg

ds-icons__search_color-font-secondary-accent.svg

728 ms

Inter-Regular.woff

Inter-Regular.woff

1097 ms

Inter-Medium.woff

Inter-Medium.woff

1140 ms

Inter-SemiBold.woff

Inter-SemiBold.woff

1105 ms

js

js

49 ms

b-icon_style_cross.18a293bbbada5ecfcc2d1fb82350418e.svg

b-icon_style_cross.18a293bbbada5ecfcc2d1fb82350418e.svg

209 ms

ds-icons__client_white.47f5733ddcaca8096d2640b364d9e279.svg

ds-icons__client_white.47f5733ddcaca8096d2640b364d9e279.svg

218 ms

ds-icons__arrow-dropdown_color-font-primary-main.04e538d2d682041f17e7342050e17842.svg

ds-icons__arrow-dropdown_color-font-primary-main.04e538d2d682041f17e7342050e17842.svg

229 ms

ds-icons__search_color-font-primary-main.b22e94408ddbbdb3ade69de580f1659e.svg

ds-icons__search_color-font-primary-main.b22e94408ddbbdb3ade69de580f1659e.svg

250 ms

ds-icons__search_color-font-secondary-accent.bffde08a9c76f4aa8a1976235dd79179.svg

ds-icons__search_color-font-secondary-accent.bffde08a9c76f4aa8a1976235dd79179.svg

304 ms

ds-icons__arrow-left_black-800.70159adc55d23d4fa533d98c4e5e0a1e.svg

ds-icons__arrow-left_black-800.70159adc55d23d4fa533d98c4e5e0a1e.svg

332 ms

b-icon_shop_lot.bcb04839ee3ac0c521674b5d026a6a9e.svg

b-icon_shop_lot.bcb04839ee3ac0c521674b5d026a6a9e.svg

344 ms

ds-icons__link-external_black-400.9f6289634915cd9ef12a292d97cca69a.svg

ds-icons__link-external_black-400.9f6289634915cd9ef12a292d97cca69a.svg

350 ms

b-icon_shop_hits.b2ddc6404bf9d5a59ff3fd674a9ba691.svg

b-icon_shop_hits.b2ddc6404bf9d5a59ff3fd674a9ba691.svg

378 ms

b-icon_shop_bid.a12814c07d1d40698eeb8204331c8af7.svg

b-icon_shop_bid.a12814c07d1d40698eeb8204331c8af7.svg

426 ms

b-domain-shop-lot-external__icon_site_yandex.ff71e874e451e56ac82a541e58792f37.svg

b-domain-shop-lot-external__icon_site_yandex.ff71e874e451e56ac82a541e58792f37.svg

456 ms

b-domain-shop-lot-external__icon_site_google.6e80e9ec7868355eb8c0db60e9ae86f6.svg

b-domain-shop-lot-external__icon_site_google.6e80e9ec7868355eb8c0db60e9ae86f6.svg

453 ms

b-domain-shop-lot-external__icon_site_rambler.e3915267e8755cfb844dfa18f506f7cb.svg

b-domain-shop-lot-external__icon_site_rambler.e3915267e8755cfb844dfa18f506f7cb.svg

469 ms

b-domain-shop-lot-external__icon_site_yahoo.380ae41fae91f37e03f4b51491c25fb4.svg

b-domain-shop-lot-external__icon_site_yahoo.380ae41fae91f37e03f4b51491c25fb4.svg

471 ms

b-domain-shop-lot-external__icon_site_bing.85234dd364db6301f5c9eff6a9b0ff74.svg

b-domain-shop-lot-external__icon_site_bing.85234dd364db6301f5c9eff6a9b0ff74.svg

500 ms

b-domain-shop-lot-external__icon_site_mail.f04d2bd8e55050ff056aae8145792640.svg

b-domain-shop-lot-external__icon_site_mail.f04d2bd8e55050ff056aae8145792640.svg

547 ms

ds-icons__cart_color-font-primary-inverse.918469e0b2ab6cc7e961356d5b5713cf.svg

ds-icons__cart_color-font-primary-inverse.918469e0b2ab6cc7e961356d5b5713cf.svg

575 ms

ds-icons__question-circle_color-font-placeholder.99ba65c162d1c128053a6efe318047d3.svg

ds-icons__question-circle_color-font-placeholder.99ba65c162d1c128053a6efe318047d3.svg

605 ms

ds-icons__mc-payment-pochastyam.dd0f2e152e37082fcd9549a7c473f1ad.svg

ds-icons__mc-payment-pochastyam.dd0f2e152e37082fcd9549a7c473f1ad.svg

596 ms

b-icon_shop_warranty-badge.b41df4cad8fd9c11d90945f41c22d96f.svg

b-icon_shop_warranty-badge.b41df4cad8fd9c11d90945f41c22d96f.svg

593 ms

ds-icons__mc-hosting-upsale.f1fd9406e4e4184d47f034dd458ba9bc.svg

ds-icons__mc-hosting-upsale.f1fd9406e4e4184d47f034dd458ba9bc.svg

623 ms

ds-icons__mc-constructor-upsale.fef7f29678382eaa2bc5f39723ca7218.svg

ds-icons__mc-constructor-upsale.fef7f29678382eaa2bc5f39723ca7218.svg

668 ms

ds-icons__mc-vps-upsale.cb0e1e81ee731b22c958b7bf903871d7.svg

ds-icons__mc-vps-upsale.cb0e1e81ee731b22c958b7bf903871d7.svg

698 ms

ds-icons__mc-ssl-upsale.9569e040f4fb87d4b628d74be300e152.svg

ds-icons__mc-ssl-upsale.9569e040f4fb87d4b628d74be300e152.svg

714 ms

ds-icons__mc-dedicated-upsale.8a0d9566d56643c9aaa91e4bda4af9ec.svg

ds-icons__mc-dedicated-upsale.8a0d9566d56643c9aaa91e4bda4af9ec.svg

725 ms

icon.d18b0726809215cf1a2703fe6810a8e2.png

icon.d18b0726809215cf1a2703fe6810a8e2.png

761 ms

ds-icons__arrow-right_color-font-primary-inverse.b550047dd7a7c229f9346a4227462336.svg

ds-icons__arrow-right_color-font-primary-inverse.b550047dd7a7c229f9346a4227462336.svg

768 ms

ds-icons__arrow-next_color-font-disabled.cac5a1bbb4387353115aaa323aa55ccb.svg

ds-icons__arrow-next_color-font-disabled.cac5a1bbb4387353115aaa323aa55ccb.svg

795 ms

ds-icons__vkontakte_color-font-primary-main.d3078deb58e637b1490267ec9beeef24.svg

ds-icons__vkontakte_color-font-primary-main.d3078deb58e637b1490267ec9beeef24.svg

751 ms

AeonikPro-Medium.woff

AeonikPro-Medium.woff

778 ms

tag.js

tag.js

878 ms

code.tonzz3.ru

code.tonzz3.ru

586 ms

ds-icons__telegram_color-font-primary-main.0ff114fe978f8333e7d8eb40eefec964.svg

ds-icons__telegram_color-font-primary-main.0ff114fe978f8333e7d8eb40eefec964.svg

757 ms

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ds-icons__ok_color-font-primary-main.d47bb4b41a056c7e89ba4e91e96575ad.svg

762 ms

ds-icons__moikrug_color-font-primary-main.119dd480b673321ff640b6fb3df36fab.svg

ds-icons__moikrug_color-font-primary-main.119dd480b673321ff640b6fb3df36fab.svg

779 ms

ds-icons__youtube-fill_color-font-primary-main.cdcf04d6346ff73a00dfef8e28c2700f.svg

ds-icons__youtube-fill_color-font-primary-main.cdcf04d6346ff73a00dfef8e28c2700f.svg

785 ms

ds-icons__x-twitter_color-font-primary-main.b85fc96acfe3bd04254125b63bd903e4.svg

ds-icons__x-twitter_color-font-primary-main.b85fc96acfe3bd04254125b63bd903e4.svg

788 ms

Accessibility Review

costar.ru accessibility score

85

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

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

costar.ru 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

High

Missing source maps for large first-party JavaScript

SEO Factors

costar.ru SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Costar.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 Costar.ru 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

costar.ru

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