Tools & Wizards About Us
costarmarketanalytics.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

costarmarketanalytics.com

CoStar | #1 Commercial Real Estate Information Company

Page Load Speed

9.4 sec in total

First Response

3.8 sec

Resources Loaded

5 sec

Page Rendered

623 ms

costarmarketanalytics.com screenshot

About Website

Visit costarmarketanalytics.com now to see the best up-to-date Co Star Marketanalytics content and also check out these interesting facts you probably never knew about costarmarketanalytics.com

CoStar, the world leader in commercial real estate information, has the most comprehensive database of real estate data throughout the US, Canada, UK and France.

Visit costarmarketanalytics.com

Key Findings

We analyzed Costarmarketanalytics.com page load time and found that the first response time was 3.8 sec and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

costarmarketanalytics.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value24.2 s

0/100

25%

SI (Speed Index)

Value18.7 s

0/100

10%

TBT (Total Blocking Time)

Value4,390 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value33.5 s

0/100

10%

Network Requests Diagram

www.costar.com

3772 ms

react.production.min.js

110 ms

react-dom.production.min.js

137 ms

polyfill.min.js

122 ms

81647359a3c602bb.css

70 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Costarmarketanalytics.com, 43% (33 requests) were made to Costar.brightspotcdn.com and 4% (3 requests) were made to Embed.widencdn.net. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Costar.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (25%)

Content Size

4.0 MB

After Optimization

3.0 MB

  • HTML
  • Images

In fact, the total size of Costarmarketanalytics.com main page is 4.0 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. Only a small number of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 1.0 MB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 168.2 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 1.0 MB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 7.1 kB

  • Original 2.8 MB
  • After minification 2.8 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. Co Star Marketanalytics images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 25 (37%)

Requests Now

68

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Co Star Marketanalytics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.costar.com

www.costar.com

3772 ms

react.production.min.js

react.production.min.js

110 ms

react-dom.production.min.js

react-dom.production.min.js

137 ms

polyfill.min.js

polyfill.min.js

122 ms

81647359a3c602bb.css

81647359a3c602bb.css

70 ms

55b461226d489f2c.css

55b461226d489f2c.css

74 ms

8d43074ec6d09516.css

8d43074ec6d09516.css

88 ms

86e473e3a8e2a52c.css

86e473e3a8e2a52c.css

81 ms

polyfills-5cd94c89d3acac5f.js

polyfills-5cd94c89d3acac5f.js

93 ms

webpack-42cdea76c8170223.js

webpack-42cdea76c8170223.js

80 ms

framework-fc1f2e8247ad02c2.js

framework-fc1f2e8247ad02c2.js

117 ms

main-2e575c80a29c6634.js

main-2e575c80a29c6634.js

87 ms

_app-24f8a12984d4e3ff.js

_app-24f8a12984d4e3ff.js

106 ms

613-8ae92b29413ab116.js

613-8ae92b29413ab116.js

289 ms

907-74342c8ecff88ee5.js

907-74342c8ecff88ee5.js

120 ms

485-3bda4b94cc31715b.js

485-3bda4b94cc31715b.js

117 ms

70-be8441712573a52f.js

70-be8441712573a52f.js

122 ms

376-587f31ee8d9a830e.js

376-587f31ee8d9a830e.js

117 ms

90-101c1be3dfa92d10.js

90-101c1be3dfa92d10.js

284 ms

index-1ec041f3103385b5.js

index-1ec041f3103385b5.js

285 ms

_buildManifest.js

_buildManifest.js

285 ms

_ssgManifest.js

_ssgManifest.js

286 ms

_middlewareManifest.js

_middlewareManifest.js

285 ms

app.c5eb84be369c01ceff33.js

app.c5eb84be369c01ceff33.js

333 ms

runtime.74f4df1421339457326f.js

runtime.74f4df1421339457326f.js

398 ms

i18n.49f4ff0265a347c4ded3.js

i18n.49f4ff0265a347c4ded3.js

286 ms

38.e7ac14b7ba8311b17312.js

38.e7ac14b7ba8311b17312.js

562 ms

BK6PL-RXW93-V54RD-W2RP2-7BKNB

BK6PL-RXW93-V54RD-W2RP2-7BKNB

96 ms

309 ms

308 ms

305 ms

313 ms

307 ms

310 ms

307 ms

310 ms

361 ms

347 ms

100-year-oldbld-annimation.gif

100-year-oldbld-annimation.gif

463 ms

362 ms

359 ms

359 ms

364 ms

370 ms

361 ms

365 ms

366 ms

369 ms

364 ms

370 ms

369 ms

372 ms

370 ms

403 ms

371 ms

372 ms

372 ms

374 ms

373 ms

lineto-costar-brown-light.69e4e019.woff

lineto-costar-brown-light.69e4e019.woff

244 ms

Helvetica_Regular.db069400.woff

Helvetica_Regular.db069400.woff

242 ms

Helvetica_Light.b09794bf.woff

Helvetica_Light.b09794bf.woff

230 ms

Helvetica_Bold.28c21474.woff

Helvetica_Bold.28c21474.woff

272 ms

237 ms

facebook_white_124px.295429f3.png

facebook_white_124px.295429f3.png

229 ms

linkedin_white_124px.a185bd86.png

linkedin_white_124px.a185bd86.png

235 ms

twitter_white_124px.e7f77163.png

twitter_white_124px.e7f77163.png

236 ms

ig_white_124px.ba4a35fb.png

ig_white_124px.ba4a35fb.png

235 ms

339 ms

330 ms

332 ms

331 ms

lineto-costar-brown-regular.b4193c60.woff

lineto-costar-brown-regular.b4193c60.woff

107 ms

EJRVQgYoZZY2vCFuvAFWzrk.woff

EJRVQgYoZZY2vCFuvAFWzrk.woff

124 ms

lineto-costar-brown-bold.26b9240d.woff

lineto-costar-brown-bold.26b9240d.woff

121 ms

config.json

config.json

154 ms

Accessibility Review

costarmarketanalytics.com accessibility score

61

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-*] attributes do not match their roles

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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.

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

Best Practices

costarmarketanalytics.com 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

costarmarketanalytics.com SEO score

83

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

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

    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 Costarmarketanalytics.com 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 Costarmarketanalytics.com 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

costarmarketanalytics.com

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