costar.com website information.
costar.com domain name is registered by .COM top-level domain registry. See the other sites registred in .COM domain zone.
Following name servers are specified for costar.com domain:
- a22-64.akam.net
- a3-65.akam.net
- a6-67.akam.net
- a9-64.akam.net
- a4-66.akam.net
- a1-73.akam.net
and probably website costar.com is hosted by FACEBOOK - Facebook, Inc., US web hosting company. Check the complete list of other most popular websites hosted by FACEBOOK - Facebook, Inc., US hosting company.
According to Alexa traffic rank the highest website costar.com position was 8882 (in the world). The lowest Alexa rank position was 11552. Now website costar.com ranked in Alexa database as number 8991 (in the world).
Website costar.com Desktop speed measurement score (68/100) is better than the results of 47.59% of other sites shows that the page desktop performance can be improved.
costar.com Mobile usability score (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of costar.com (54/100) is better than the results of 41.82% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-28-2024 | 8,991 | -34 |
| Nov-27-2024 | 8,957 | -48 |
| Nov-26-2024 | 8,909 | 35 |
| Nov-25-2024 | 8,944 | 19 |
| Nov-24-2024 | 8,963 | 58 |
| Nov-23-2024 | 9,021 | -58 |
| Nov-22-2024 | 8,963 | 4 |
Advertisement
costar.com Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
costar.com whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
Domain Name: COSTAR.COM
Registry Domain ID: 1870855_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2023-10-08T10:33:09Z
Creation Date: 1994-11-10T05:00:00Z
Registry Expiry Date: 2024-11-09T05:00:00Z
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2086851750
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: A1-73.AKAM.NET
Name Server: A22-64.AKAM.NET
Name Server: A3-65.AKAM.NET
Name Server: A4-66.AKAM.NET
Name Server: A6-67.AKAM.NET
Name Server: A9-64.AKAM.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-10T23:52:06Z
costar.com server information
costar.com desktop page speed rank
Last tested: 2016-08-13
Desktop Speed
Medium
68/100
costar.com Desktop Speed Test Quick Summary
priority - 16 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://www.google-analytics.com/analytics.js (2 hours)
https://www.costar.com/PortalPublic/SSL/css/portal.css (6.1 hours)
http://www.costar.com/Scripts/costar.js (6.2 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (6.6 hours)
https://www.costar.com/PortalPublic/SSL/javascript/windows.js?v=3 (7.4 hours)
https://www.costar.com/PortalPublic/SSL/javascript…lDialogPolyfill.js?v=3 (7.4 hours)
https://www.costar.com/PortalPublic/SSL/css/main.css (8 hours)
https://www.costar.com/SharedFilesCB/Common/javasc…?ks=636046163037344974 (8 hours)
https://www.costar.com/PortalPublic/SSL/javascript/LoginFunctions.js?v=3 (11.4 hours)
https://www.costar.com/PortalPublic/SSL/javascript/CookieFunctions.js?v=3 (11.7 hours)
http://www.costar.com/Scripts/video-js/video.js (12.3 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (12.3 hours)
https://www.costar.com/PortalPublic/SSL/javascript/GeneralFunctions.js?v=3 (13.6 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (14.7 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (15.3 hours)
http://www.costar.com/Scripts/demoModal.js (15.3 hours)
http://www.costar.com/Scripts/bootstrap/js/bootstrap.min.js (18.6 hours)
https://www.costar.com/SharedFilesCB/Common/javasc…?ks=636046163037344974 (21.5 hours)
http://www.costar.com/images/default-source/wirefr…7_million.jpg?sfvrsn=6 (24.5 hours)
http://www.costar.com/images/default-source/CoStar…n_18_cyan.png?sfvrsn=2 (41 hours)
http://www.costar.com/images/default-source/costar…global_02.png?sfvrsn=0 (2.9 days)
http://www.costar.com/images/default-source/costar…wakefield.png?sfvrsn=6 (3.3 days)
http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 (3.4 days)
http://www.costar.com/images/default-source/costar…s/metlife.png?sfvrsn=2 (3.5 days)
http://www.costar.com/images/default-source/costar…estate_02.png?sfvrsn=0 (3.5 days)
http://www.costar.com/images/default-source/costar…ogos/cbre.png?sfvrsn=0 (3.6 days)
http://www.costar.com/images/default-source/defaul…hic_final.png?sfvrsn=0 (3.6 days)
http://www.costar.com/images/default-source/costar…nswestern.png?sfvrsn=0 (3.7 days)
http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 (3.7 days)
http://www.costar.com/images/default-source/costar…sche_bank.png?sfvrsn=2 (3.8 days)
http://www.costar.com/images/default-source/costar…logo--new.jpg?sfvrsn=2 (4.2 days)
http://www.costar.com/images/default-source/costar…/colliers.png?sfvrsn=2 (4.3 days)
http://www.costar.com/images/default-source/wirefr…-listings.jpg?sfvrsn=2 (4.3 days)
http://www.costar.com/images/default-source/costar…logos/jll.png?sfvrsn=0 (4.3 days)
http://www.costar.com/images/default-source/costar…appraisal.png?sfvrsn=2 (4.4 days)
http://www.costar.com/images/default-source/wirefr…000-calls.jpg?sfvrsn=2 (4.5 days)
http://www.costar.com/images/default-source/costar…logos/ubs.png?sfvrsn=2 (4.5 days)
http://www.costar.com/images/default-source/defaul…500412858.png?sfvrsn=0 (4.6 days)
http://www.costar.com/images/default-source/costar…/lee_logo.png?sfvrsn=2 (4.6 days)
http://www.costar.com/images/default-source/wirefr…000412858.jpg?sfvrsn=2 (4.7 days)
http://www.costar.com/images/default-source/costar…or-102513.jpg?sfvrsn=2 (4.7 days)
http://www.costar.com/images/default-source/costar…s/td_bank.png?sfvrsn=2 (4.7 days)
http://www.costar.com/images/default-source/costar…resa-logo.png?sfvrsn=2 (4.8 days)
http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…ke_realty.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/wirefr…s-tracked.jpg?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…e_systems.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…/barclays.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…ogos/logo.png?sfvrsn=8 (4.9 days)
http://www.costar.com/images/default-source/costar…valbridge.png?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/page-i…-images-2.jpg?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/page-i…-images-3.jpg?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/costar…son-young.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…ogos/usaa.png?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/costar…000412858.png?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/costar…-web-logo.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…o_web_rgb.png?sfvrsn=0 (5.8 days)
http://www.costar.com/images/default-source/costar…t-logos/n.png?sfvrsn=0 (6.4 days)
http://www.costar.com/images/default-source/CoStar…go-168_45.png?sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/CoStar…usel_left.png?sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/page-i…100412858.jpg?sfvrsn=0 (6.4 days)
http://www.costar.com/images/default-source/CoStar…g?Status=Temp&sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/CoStar…sel_right.png?sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/costar…_van_ness.png?sfvrsn=6 (6.4 days)
http://www.costar.com/images/default-source/header…age-image.jpg?sfvrsn=0 (6.9 days)
https://www.costar.com/PortalPublic/SSL/css/portal.css (6.1 hours)
http://www.costar.com/Scripts/costar.js (6.2 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (6.6 hours)
https://www.costar.com/PortalPublic/SSL/javascript/windows.js?v=3 (7.4 hours)
https://www.costar.com/PortalPublic/SSL/javascript…lDialogPolyfill.js?v=3 (7.4 hours)
https://www.costar.com/PortalPublic/SSL/css/main.css (8 hours)
https://www.costar.com/SharedFilesCB/Common/javasc…?ks=636046163037344974 (8 hours)
https://www.costar.com/PortalPublic/SSL/javascript/LoginFunctions.js?v=3 (11.4 hours)
https://www.costar.com/PortalPublic/SSL/javascript/CookieFunctions.js?v=3 (11.7 hours)
http://www.costar.com/Scripts/video-js/video.js (12.3 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (12.3 hours)
https://www.costar.com/PortalPublic/SSL/javascript/GeneralFunctions.js?v=3 (13.6 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (14.7 hours)
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 (15.3 hours)
http://www.costar.com/Scripts/demoModal.js (15.3 hours)
http://www.costar.com/Scripts/bootstrap/js/bootstrap.min.js (18.6 hours)
https://www.costar.com/SharedFilesCB/Common/javasc…?ks=636046163037344974 (21.5 hours)
http://www.costar.com/images/default-source/wirefr…7_million.jpg?sfvrsn=6 (24.5 hours)
http://www.costar.com/images/default-source/CoStar…n_18_cyan.png?sfvrsn=2 (41 hours)
http://www.costar.com/images/default-source/costar…global_02.png?sfvrsn=0 (2.9 days)
http://www.costar.com/images/default-source/costar…wakefield.png?sfvrsn=6 (3.3 days)
http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 (3.4 days)
http://www.costar.com/images/default-source/costar…s/metlife.png?sfvrsn=2 (3.5 days)
http://www.costar.com/images/default-source/costar…estate_02.png?sfvrsn=0 (3.5 days)
http://www.costar.com/images/default-source/costar…ogos/cbre.png?sfvrsn=0 (3.6 days)
http://www.costar.com/images/default-source/defaul…hic_final.png?sfvrsn=0 (3.6 days)
http://www.costar.com/images/default-source/costar…nswestern.png?sfvrsn=0 (3.7 days)
http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 (3.7 days)
http://www.costar.com/images/default-source/costar…sche_bank.png?sfvrsn=2 (3.8 days)
http://www.costar.com/images/default-source/costar…logo--new.jpg?sfvrsn=2 (4.2 days)
http://www.costar.com/images/default-source/costar…/colliers.png?sfvrsn=2 (4.3 days)
http://www.costar.com/images/default-source/wirefr…-listings.jpg?sfvrsn=2 (4.3 days)
http://www.costar.com/images/default-source/costar…logos/jll.png?sfvrsn=0 (4.3 days)
http://www.costar.com/images/default-source/costar…appraisal.png?sfvrsn=2 (4.4 days)
http://www.costar.com/images/default-source/wirefr…000-calls.jpg?sfvrsn=2 (4.5 days)
http://www.costar.com/images/default-source/costar…logos/ubs.png?sfvrsn=2 (4.5 days)
http://www.costar.com/images/default-source/defaul…500412858.png?sfvrsn=0 (4.6 days)
http://www.costar.com/images/default-source/costar…/lee_logo.png?sfvrsn=2 (4.6 days)
http://www.costar.com/images/default-source/wirefr…000412858.jpg?sfvrsn=2 (4.7 days)
http://www.costar.com/images/default-source/costar…or-102513.jpg?sfvrsn=2 (4.7 days)
http://www.costar.com/images/default-source/costar…s/td_bank.png?sfvrsn=2 (4.7 days)
http://www.costar.com/images/default-source/costar…resa-logo.png?sfvrsn=2 (4.8 days)
http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…ke_realty.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/wirefr…s-tracked.jpg?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…e_systems.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…/barclays.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…ogos/logo.png?sfvrsn=8 (4.9 days)
http://www.costar.com/images/default-source/costar…valbridge.png?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/page-i…-images-2.jpg?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/page-i…-images-3.jpg?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/costar…son-young.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…ogos/usaa.png?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/costar…000412858.png?sfvrsn=0 (4.9 days)
http://www.costar.com/images/default-source/costar…-web-logo.png?sfvrsn=2 (4.9 days)
http://www.costar.com/images/default-source/costar…o_web_rgb.png?sfvrsn=0 (5.8 days)
http://www.costar.com/images/default-source/costar…t-logos/n.png?sfvrsn=0 (6.4 days)
http://www.costar.com/images/default-source/CoStar…go-168_45.png?sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/CoStar…usel_left.png?sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/page-i…100412858.jpg?sfvrsn=0 (6.4 days)
http://www.costar.com/images/default-source/CoStar…g?Status=Temp&sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/CoStar…sel_right.png?sfvrsn=2 (6.4 days)
http://www.costar.com/images/default-source/costar…_van_ness.png?sfvrsn=6 (6.4 days)
http://www.costar.com/images/default-source/header…age-image.jpg?sfvrsn=0 (6.9 days)
priority - 14 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 9 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://www.costar.com/WebResource.axd?d=tMF90ypupx…1&t=635802997220000000
http://www.costar.com/ScriptResource.axd?d=RGpfmXz…ej4FY4VjOg1&t=62fc1f78
http://www.costar.com/WebResource.axd?d=4mI_uiZYC4…0&t=635839721840000000
http://www.costar.com/Telerik.Web.UI.WebResource.a…%3aea597d4b%3ab25378d2
http://www.costar.com/ScriptResource.axd?d=kn_lkZt…TcLIn5-GqQ2&t=37b841b5
http://www.costar.com/Telerik.Web.UI.WebResource.a…%3a7ee0bb1f%3a83eb063b
http://www.costar.com/ScriptResource.axd?d=l8ydsEC…3n4ccDGTBw2&t=37b841b5
http://www.costar.com/ScriptResource.axd?d=EDIo3Wc…0k9Q7YSspA2&t=37b841b5
http://www.costar.com/Telerik.Web.UI.WebResource.a…%3a16e4e7cd%3a11e117d7
http://www.costar.com/ScriptResource.axd?d=RGpfmXz…ej4FY4VjOg1&t=62fc1f78
http://www.costar.com/WebResource.axd?d=4mI_uiZYC4…0&t=635839721840000000
http://www.costar.com/Telerik.Web.UI.WebResource.a…%3aea597d4b%3ab25378d2
http://www.costar.com/ScriptResource.axd?d=kn_lkZt…TcLIn5-GqQ2&t=37b841b5
http://www.costar.com/Telerik.Web.UI.WebResource.a…%3a7ee0bb1f%3a83eb063b
http://www.costar.com/ScriptResource.axd?d=l8ydsEC…3n4ccDGTBw2&t=37b841b5
http://www.costar.com/ScriptResource.axd?d=EDIo3Wc…0k9Q7YSspA2&t=37b841b5
http://www.costar.com/Telerik.Web.UI.WebResource.a…%3a16e4e7cd%3a11e117d7
Optimize CSS Delivery of the following:
http://www.costar.com/Telerik.Web.UI.WebResource.a…5%3a83fa35c7%3a7a90d6a
http://www.costar.com/Sitefinity/Public/Responsive…00ed/SitefinitySiteMap
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/Public/Responsive…00ed/SitefinitySiteMap
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000
priority - 14 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 132.4KiB (29% reduction).
Losslessly compressing http://www.costar.com/images/default-source/defaul…hic_final.png?sfvrsn=0 could save 105KiB (27% reduction).
Losslessly compressing http://www.costar.com/images/default-source/defaul…500412858.png?sfvrsn=0 could save 14.7KiB (58% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…or-102513.jpg?sfvrsn=2 could save 3.3KiB (37% reduction).
Compressing and resizing http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 could save 1.3KiB (59% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…_van_ness.png?sfvrsn=6 could save 1.2KiB (17% reduction).
Losslessly compressing http://www.costar.com/images/default-source/CoStar…g?Status=Temp&sfvrsn=2 could save 1.1KiB (90% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…ogos/logo.png?sfvrsn=8 could save 1.1KiB (17% reduction).
Compressing and resizing http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 could save 1,001B (55% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…/lee_logo.png?sfvrsn=2 could save 965B (13% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…valbridge.png?sfvrsn=0 could save 932B (14% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…nswestern.png?sfvrsn=0 could save 921B (25% reduction).
Compressing and resizing http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 could save 881B (55% reduction).
Losslessly compressing http://www.costar.com/images/default-source/defaul…500412858.png?sfvrsn=0 could save 14.7KiB (58% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…or-102513.jpg?sfvrsn=2 could save 3.3KiB (37% reduction).
Compressing and resizing http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 could save 1.3KiB (59% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…_van_ness.png?sfvrsn=6 could save 1.2KiB (17% reduction).
Losslessly compressing http://www.costar.com/images/default-source/CoStar…g?Status=Temp&sfvrsn=2 could save 1.1KiB (90% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…ogos/logo.png?sfvrsn=8 could save 1.1KiB (17% reduction).
Compressing and resizing http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 could save 1,001B (55% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…/lee_logo.png?sfvrsn=2 could save 965B (13% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…valbridge.png?sfvrsn=0 could save 932B (14% reduction).
Losslessly compressing http://www.costar.com/images/default-source/costar…nswestern.png?sfvrsn=0 could save 921B (25% reduction).
Compressing and resizing http://www.costar.com/images/default-source/social…g?Status=Temp&sfvrsn=2 could save 881B (55% reduction).
priority - 2 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 16.2KiB (22% reduction).
Minifying https://www.costar.com/SharedFilesCB/Common/javasc…?ks=636046163037344974 could save 6.1KiB (48% reduction) after compression.
Minifying http://www.costar.com/ScriptResource.axd?d=l8ydsEC…3n4ccDGTBw2&t=37b841b5 could save 5.2KiB (16% reduction) after compression.
Minifying http://www.costar.com/Telerik.Web.UI.WebResource.a…%3a7ee0bb1f%3a83eb063b could save 1.3KiB (13% reduction) after compression.
Minifying https://www.costar.com/PortalPublic/SSL/javascript/windows.js?v=3 could save 1,003B (28% reduction) after compression.
Minifying https://www.costar.com/PortalPublic/SSL/javascript/GeneralFunctions.js?v=3 could save 798B (27% reduction) after compression.
Minifying http://www.costar.com/ScriptResource.axd?d=RGpfmXz…ej4FY4VjOg1&t=62fc1f78 could save 789B (15% reduction) after compression.
Minifying http://www.costar.com/Scripts/costar.js could save 603B (31% reduction) after compression.
Minifying http://www.costar.com/WebResource.axd?d=tMF90ypupx…1&t=635802997220000000 could save 524B (12% reduction) after compression.
Minifying http://www.costar.com/ScriptResource.axd?d=l8ydsEC…3n4ccDGTBw2&t=37b841b5 could save 5.2KiB (16% reduction) after compression.
Minifying http://www.costar.com/Telerik.Web.UI.WebResource.a…%3a7ee0bb1f%3a83eb063b could save 1.3KiB (13% reduction) after compression.
Minifying https://www.costar.com/PortalPublic/SSL/javascript/windows.js?v=3 could save 1,003B (28% reduction) after compression.
Minifying https://www.costar.com/PortalPublic/SSL/javascript/GeneralFunctions.js?v=3 could save 798B (27% reduction) after compression.
Minifying http://www.costar.com/ScriptResource.axd?d=RGpfmXz…ej4FY4VjOg1&t=62fc1f78 could save 789B (15% reduction) after compression.
Minifying http://www.costar.com/Scripts/costar.js could save 603B (31% reduction) after compression.
Minifying http://www.costar.com/WebResource.axd?d=tMF90ypupx…1&t=635802997220000000 could save 524B (12% reduction) after compression.
priority - 1 Reduce server response time
In our test, your server responded in 0.28 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 1 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 5.6KiB (18% reduction).
Minifying http://www.costar.com/Sitefinity/WebsiteTemplates/…s?v=635495568060000000 could save 3.6KiB (14% reduction) after compression.
Minifying https://www.costar.com/PortalPublic/SSL/css/main.css could save 1.2KiB (45% reduction) after compression.
Minifying http://www.costar.com/Sitefinity/Public/Responsive…00ed/SitefinitySiteMap could save 800B (24% reduction) after compression.
Minifying https://www.costar.com/PortalPublic/SSL/css/main.css could save 1.2KiB (45% reduction) after compression.
Minifying http://www.costar.com/Sitefinity/Public/Responsive…00ed/SitefinitySiteMap could save 800B (24% reduction) after compression.
costar.com Desktop Resources
| Total Resources | 94 |
| Number of Hosts | 10 |
| Static Resources | 79 |
| JavaScript Resources | 25 |
| CSS Resources | 8 |
costar.com Desktop Resource Breakdown
costar.com mobile page speed rank
Last tested: 2019-12-07
Mobile Speed
Bad
54/100
costar.com Mobile Speed Test Quick Summary
priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
https://fonts.googleapis.com/css?family=PT+Serif
https://www.costar.com/_next/static/css/commons.f7914260.chunk.css
https://www.costar.com/_next/static/css/styles.0de9f555.chunk.css
https://www.costar.com/_next/static/css/commons.f7914260.chunk.css
https://www.costar.com/_next/static/css/styles.0de9f555.chunk.css
priority - 26 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://costar.com/
http://www.costar.com/
https://www.costar.com/
http://www.costar.com/
https://www.costar.com/
priority - 14 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 132.9KiB (24% reduction).
Compressing https://s0.2mdn.net/dfp/201116/26070716/1572040096465/ListingPhoto.jpg could save 31.4KiB (36% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/7c8…ges-630048492-1800.jpg could save 24.2KiB (19% reduction).
Compressing https://s0.2mdn.net/dfp/201116/26070716/1573307469682/ListingPhoto.jpg could save 20.3KiB (35% reduction).
Compressing https://s0.2mdn.net/dfp/201116/26070716/1573483791432/ListingPhoto.jpg could save 16.9KiB (30% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/fad…es-1190787303-1800.jpg could save 5.5KiB (20% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/4a7…cdf0766%2Fshoppers.jpg could save 5.2KiB (16% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/3ca…ages-96483259-1800.jpg could save 4.4KiB (19% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/25d…ges-876539038-1800.jpg could save 3.8KiB (17% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/349…tobybrettbuchanan.jpeg could save 3.8KiB (18% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/19b…1d7a8f%2Fpicolanai.jpg could save 3.5KiB (18% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/ae2…218d034a97897%2Fwu.jpg could save 2.8KiB (14% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/9d7…dji-0213-glenn-cox.JPG could save 2.7KiB (17% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/7a0…38fce7%2Fdtlagraph.jpg could save 2.5KiB (16% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/790…d740dd87%2Fmodular.jpg could save 2.2KiB (16% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/2a5…4823d70a%2Fsylvain.jpg could save 2.1KiB (14% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/7c5…-net-migration-map.jpg could save 1.6KiB (14% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/7c8…ges-630048492-1800.jpg could save 24.2KiB (19% reduction).
Compressing https://s0.2mdn.net/dfp/201116/26070716/1573307469682/ListingPhoto.jpg could save 20.3KiB (35% reduction).
Compressing https://s0.2mdn.net/dfp/201116/26070716/1573483791432/ListingPhoto.jpg could save 16.9KiB (30% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/fad…es-1190787303-1800.jpg could save 5.5KiB (20% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/4a7…cdf0766%2Fshoppers.jpg could save 5.2KiB (16% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/3ca…ages-96483259-1800.jpg could save 4.4KiB (19% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/25d…ges-876539038-1800.jpg could save 3.8KiB (17% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/349…tobybrettbuchanan.jpeg could save 3.8KiB (18% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/19b…1d7a8f%2Fpicolanai.jpg could save 3.5KiB (18% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/ae2…218d034a97897%2Fwu.jpg could save 2.8KiB (14% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/9d7…dji-0213-glenn-cox.JPG could save 2.7KiB (17% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/7a0…38fce7%2Fdtlagraph.jpg could save 2.5KiB (16% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/790…d740dd87%2Fmodular.jpg could save 2.2KiB (16% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/2a5…4823d70a%2Fsylvain.jpg could save 2.1KiB (14% reduction).
Compressing https://costar.brightspotcdn.com/dims4/default/7c5…-net-migration-map.jpg could save 1.6KiB (14% reduction).
priority - 8 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 73.9KiB (85% reduction).
Compressing https://www.costar.com/api/news/mostviewed could save 68.5KiB (89% reduction).
Compressing https://www.costar.com/_next/static/images/logo-co…7bc21a7f32ec8dbbbe.svg could save 5.4KiB (59% reduction).
Compressing https://www.costar.com/_next/static/images/logo-co…7bc21a7f32ec8dbbbe.svg could save 5.4KiB (59% reduction).
priority - 6 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.costar.com/api/news/mostviewed (expiration not specified)
https://code.createjs.com/createjs-2015.11.26.min.js (15 minutes)
https://s0.2mdn.net/ads/studio/Enabler.js (15 minutes)
https://securepubads.g.doubleclick.net/tag/js/gpt.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-W3JHQWW (15 minutes)
https://www.googletagservices.com/activeview/js/cu…osd.js?cb=%2Fr20100101 (50 minutes)
https://www.googletagservices.com/activeview/js/cu…ner.js?cache=r20110914 (50 minutes)
https://tag.demandbase.com/c202a672.min.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://code.createjs.com/createjs-2015.11.26.min.js (15 minutes)
https://s0.2mdn.net/ads/studio/Enabler.js (15 minutes)
https://securepubads.g.doubleclick.net/tag/js/gpt.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-W3JHQWW (15 minutes)
https://www.googletagservices.com/activeview/js/cu…osd.js?cb=%2Fr20100101 (50 minutes)
https://www.googletagservices.com/activeview/js/cu…ner.js?cache=r20110914 (50 minutes)
https://tag.demandbase.com/c202a672.min.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 4 Reduce server response time
In our test, your server responded in 0.48 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 1 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 10.9KiB (12% reduction).
Minifying https://s0.2mdn.net/dfp/201116/26070716/1573483791432/index.html could save 3.2KiB (11% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1573307469682/index.html could save 3.1KiB (11% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572040096465/index.html could save 3KiB (11% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572038879154/4216198_720.html could save 609B (27% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572038598528/4539854_720.html could save 519B (28% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572039067977/4466628_720.html could save 518B (28% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1573307469682/index.html could save 3.1KiB (11% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572040096465/index.html could save 3KiB (11% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572038879154/4216198_720.html could save 609B (27% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572038598528/4539854_720.html could save 519B (28% reduction) after compression.
Minifying https://s0.2mdn.net/dfp/201116/26070716/1572039067977/4466628_720.html could save 518B (28% reduction) after compression.
costar.com Mobile Resources
| Total Resources | 93 |
| Number of Hosts | 20 |
| Static Resources | 48 |
| JavaScript Resources | 27 |
| CSS Resources | 5 |
costar.com Mobile Resource Breakdown
costar.com mobile page usability
Last tested: 2019-12-07
Mobile Usability
Good
100/100
costar.com similar domains
Similar domains:
www.costar.com
www.costar.net
www.costar.org
www.costar.info
www.costar.biz
www.costar.us
www.costar.mobi
www.ostar.com
www.costar.com
www.xostar.com
www.cxostar.com
www.xcostar.com
www.dostar.com
www.cdostar.com
www.dcostar.com
www.fostar.com
www.cfostar.com
www.fcostar.com
www.vostar.com
www.cvostar.com
www.vcostar.com
www.cstar.com
www.cistar.com
www.coistar.com
www.ciostar.com
www.ckstar.com
www.cokstar.com
www.ckostar.com
www.clstar.com
www.colstar.com
www.clostar.com
www.cpstar.com
www.copstar.com
www.cpostar.com
www.cotar.com
www.cowtar.com
www.coswtar.com
www.cowstar.com
www.coetar.com
www.cosetar.com
www.coestar.com
www.codtar.com
www.cosdtar.com
www.codstar.com
www.coztar.com
www.cosztar.com
www.cozstar.com
www.coxtar.com
www.cosxtar.com
www.coxstar.com
www.coatar.com
www.cosatar.com
www.coastar.com
www.cosar.com
www.cosrar.com
www.costrar.com
www.cosrtar.com
www.cosfar.com
www.costfar.com
www.cosftar.com
www.cosgar.com
www.costgar.com
www.cosgtar.com
www.cosyar.com
www.costyar.com
www.cosytar.com
www.costr.com
www.costqr.com
www.costaqr.com
www.costqar.com
www.costwr.com
www.costawr.com
www.costwar.com
www.costsr.com
www.costasr.com
www.costsar.com
www.costzr.com
www.costazr.com
www.costzar.com
www.costa.com
www.costae.com
www.costare.com
www.costaer.com
www.costad.com
www.costard.com
www.costadr.com
www.costaf.com
www.costarf.com
www.costafr.com
www.costat.com
www.costart.com
www.costatr.com
www.costar.con
www.costar.net
www.costar.org
www.costar.info
www.costar.biz
www.costar.us
www.costar.mobi
www.ostar.com
www.costar.com
www.xostar.com
www.cxostar.com
www.xcostar.com
www.dostar.com
www.cdostar.com
www.dcostar.com
www.fostar.com
www.cfostar.com
www.fcostar.com
www.vostar.com
www.cvostar.com
www.vcostar.com
www.cstar.com
www.cistar.com
www.coistar.com
www.ciostar.com
www.ckstar.com
www.cokstar.com
www.ckostar.com
www.clstar.com
www.colstar.com
www.clostar.com
www.cpstar.com
www.copstar.com
www.cpostar.com
www.cotar.com
www.cowtar.com
www.coswtar.com
www.cowstar.com
www.coetar.com
www.cosetar.com
www.coestar.com
www.codtar.com
www.cosdtar.com
www.codstar.com
www.coztar.com
www.cosztar.com
www.cozstar.com
www.coxtar.com
www.cosxtar.com
www.coxstar.com
www.coatar.com
www.cosatar.com
www.coastar.com
www.cosar.com
www.cosrar.com
www.costrar.com
www.cosrtar.com
www.cosfar.com
www.costfar.com
www.cosftar.com
www.cosgar.com
www.costgar.com
www.cosgtar.com
www.cosyar.com
www.costyar.com
www.cosytar.com
www.costr.com
www.costqr.com
www.costaqr.com
www.costqar.com
www.costwr.com
www.costawr.com
www.costwar.com
www.costsr.com
www.costasr.com
www.costsar.com
www.costzr.com
www.costazr.com
www.costzar.com
www.costa.com
www.costae.com
www.costare.com
www.costaer.com
www.costad.com
www.costard.com
www.costadr.com
www.costaf.com
www.costarf.com
www.costafr.com
www.costat.com
www.costart.com
www.costatr.com
www.costar.con
costar.com Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
costar.com TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.