URL Scan Results for the page [CoStar | # 1 Commercial Real Estate Information Company](https://www.costar.com/)

Document

Links

The outgoing links identified from the page.

JavaScript Variables

Global JavaScript variables are variables that are defined outside of any function or block scope in JavaScript.

Technology

The technologies identified are present on the scanned URL.

Name	Description	Detected patterns
Analytics
Linkedin Insight Tag https://business.linkedin.com/marketing-solutions/insight-tag	LinkedIn Insight Tag is a lightweight JavaScript tag that powers conversion tracking, website audiences, and website demographics.	Type: scriptSrc Regex: snap\.licdn\.com\/li\.lms-analytics\/insight\.min\.js
Google Analytics https://google.com/analytics	Google Analytics is a free web analytics service that tracks and reports website traffic.	Type: scriptSrc Regex: googletagmanager\.com\/gtag\/js
Demandbase https://www.demandbase.com	Demandbase is a targeting and personalization platform for business-to-business companies.	Type: scriptSrc Regex: tag.demandbase.com
JavaScript frameworks
React https://reactjs.org	React is an open-source JavaScript library for building user interfaces or UI components.	Dependent on Next.js
Next.js https://nextjs.org	Next.js is a React framework for developing single page Javascript applications.	Type: headers Name: x-powered-by Regex: ^Next\.js ?([0-9.]{1,250})?
Web frameworks
Next.js https://nextjs.org	Next.js is a React framework for developing single page Javascript applications.	Type: headers Name: x-powered-by Regex: ^Next\.js ?([0-9.]{1,250})?
Miscellaneous
Webpack https://webpack.js.org/	Webpack is an open-source JavaScript module bundler.	Dependent on Next.js
Programming languages
Node.js https://nodejs.org	Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.	Dependent on Next.js
CDN
Unpkg https://unpkg.com	Unpkg is a content delivery network for everything on npm.	Type: scriptSrc Regex: unpkg\.com\/
Akamai https://akamai.com	Akamai is global content delivery network (CDN) services provider for media and software delivery, and cloud security solutions.	Type: dns Regex: ^[a-z0-9]{1,250}\.[a-z0-9]{1,250}\.akamaiedge.net\.?$
Advertising
Google Publisher Tag https://developers.google.com/publisher-tag/guides/get-started	Google Publisher Tag (GPT) is an ad tagging library for Google Ad Manager which is used to dynamically build ad requests.	Type: scriptSrc Regex: securepubads\.g\.doubleclick.net\/tag\/js\/gpt\.js
Tag managers
Google Tag Manager https://www.google.com/tagmanager	Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.	Type: html Regex: googletagmanager\.com\/ns\.html[^>]{1,250}><\/iframe>
Reverse proxies
Envoy https://www.envoyproxy.io/	Envoy is an open-source edge and service proxy, designed for cloud-native applications.	Type: headers Name: x-envoy-upstream-service-time Regex: (?:)
Personalisation
Demandbase https://www.demandbase.com	Demandbase is a targeting and personalization platform for business-to-business companies.	Type: scriptSrc Regex: tag.demandbase.com

Performance

The speed and efficiency of the scanned URL loads and displays its content.

dns

1 ms

Good

tcp

1 ms

Good

requestTime

144 ms

Good

dom

3505 ms

Poor

DNS Record

A DNS record maps a domain name to an IP address or other resource information.

SSL Certificate

An SSL certificate is a digital certificate that verifies the authenticity and encrypts the communication between a website and its visitors.

HTTP Headers

HTTP Header

An HTTP header is a component of an HTTP request or response that contains additional information about the message being sent or received.

Content Security Policy

Content Security Policy (CSP) is a security mechanism that helps prevent cross-site scripting (XSS) and other code injection attacks by specifying which content sources are allowed to be loaded on a web page.

Cookies

Cookies are small pieces of data stored on a user's web browser to track and remember information about their browsing activity on a website.