4.8 sec in total
1.7 sec
2.2 sec
875 ms
Click here to check amazing Co Star Group content. Otherwise, check out these important facts you probably never knew about costargroup.net
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 costargroup.netWe analyzed Costargroup.net page load time and found that the first response time was 1.7 sec and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
costargroup.net performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value18.5 s
0/100
25%
Value16.6 s
0/100
10%
Value22,420 ms
0/100
30%
Value0.015
100/100
15%
Value44.6 s
0/100
10%
1706 ms
52 ms
69 ms
55 ms
54 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 Costargroup.net, 45% (34 requests) were made to Costar.brightspotcdn.com and 3% (2 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Costar.com.
Page size can be reduced by 1.0 MB (27%)
3.8 MB
2.8 MB
In fact, the total size of Costargroup.net main page is 3.8 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.6 MB which makes up the majority of the site volume.
Potential reduce by 1.0 MB
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 85% of the original size.
Potential reduce by 2.5 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. Co Star Group images are well optimized though.
Potential reduce by 0 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.
Number of requests can be reduced by 26 (38%)
68
42
The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Co Star Group. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
www.costar.com
1706 ms
react.production.min.js
52 ms
react-dom.production.min.js
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polyfill.min.js
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81647359a3c602bb.css
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costargroup.net accessibility score
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
[aria-*] attributes do not match their roles
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<html> element does not have a [lang] attribute
costargroup.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
costargroup.net SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Costargroup.net 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 Costargroup.net 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.
costargroup.net
Open Graph data is detected on the main page of Co Star Group. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: