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Web cookies (also called HTTP cookies, browser cookies, or simply cookies) are small pieces of data that websites store on your device (computer, phone, etc.) through your web browser. They are used to remember information about you and your interactions with the site.

Purpose of Cookies:

  1. Session Management:

    • Keeping you logged in

    • Remembering items in a shopping cart

    • Saving language or theme preferences

  2. Personalization:

    • Tailoring content or ads based on your previous activity

  3. Tracking & Analytics:

    • Monitoring browsing behavior for analytics or marketing purposes


Types of Cookies:

  1. Session Cookies:

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    • Used for things like keeping you logged in during a single session

  2. Persistent Cookies:

    • Stored on your device until they expire or are manually deleted

    • Used for remembering login credentials, settings, etc.

  3. First-Party Cookies:

    • Set by the website you're visiting directly

  4. Third-Party Cookies:

    • Set by other domains (usually advertisers) embedded in the website

    • Commonly used for tracking across multiple sites

Authentication cookies are a special type of web cookie used to identify and verify a user after they log in to a website or web application.


What They Do:

Once you log in to a site, the server creates an authentication cookie and sends it to your browser. This cookie:

  • Proves to the website that you're logged in

  • Prevents you from having to log in again on every page you visit

  • Can persist across sessions if you select "Remember me"


What's Inside an Authentication Cookie?

Typically, it contains:

  • A unique session ID (not your actual password)

  • Optional metadata (e.g., expiration time, security flags)

Analytics cookies are cookies used to collect data about how visitors interact with a website. Their primary purpose is to help website owners understand and improve user experience by analyzing things like:

  • How users navigate the site

  • Which pages are most/least visited

  • How long users stay on each page

  • What device, browser, or location the user is from


What They Track:

Some examples of data analytics cookies may collect:

  • Page views and time spent on pages

  • Click paths (how users move from page to page)

  • Bounce rate (users who leave without interacting)

  • User demographics (location, language, device)

  • Referring websites (how users arrived at the site)

Here’s how you can disable cookies in common browsers:

1. Google Chrome

  • Open Chrome and click the three vertical dots in the top-right corner.

  • Go to Settings > Privacy and security > Cookies and other site data.

  • Choose your preferred option:

    • Block all cookies (not recommended, can break most websites).

    • Block third-party cookies (can block ads and tracking cookies).

2. Mozilla Firefox

  • Open Firefox and click the three horizontal lines in the top-right corner.

  • Go to Settings > Privacy & Security.

  • Under the Enhanced Tracking Protection section, choose Strict to block most cookies or Custom to manually choose which cookies to block.

3. Safari

  • Open Safari and click Safari in the top-left corner of the screen.

  • Go to Preferences > Privacy.

  • Check Block all cookies to stop all cookies, or select options to block third-party cookies.

4. Microsoft Edge

  • Open Edge and click the three horizontal dots in the top-right corner.

  • Go to Settings > Privacy, search, and services > Cookies and site permissions.

  • Select your cookie settings from there, including blocking all cookies or blocking third-party cookies.

5. On Mobile (iOS/Android)

  • For Safari on iOS: Go to Settings > Safari > Privacy & Security > Block All Cookies.

  • For Chrome on Android: Open the app, tap the three dots, go to Settings > Privacy and security > Cookies.

Be Aware:

Disabling cookies can make your online experience more difficult. Some websites may not load properly, or you may be logged out frequently. Also, certain features may not work as expected.

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Connecticut Broadband Availability Map

Posted on November 17, 2022May 17, 2023 by Emily Wilson

The Connecticut Broadband Availability Map was created to help citizens and policymakers understand the strengths and weaknesses of broadband infrastructure in the state. Continue reading →

Posted in State GIS Office Tagged broadband, state gis office, viewer

1934 Aerial Photography Mosaic 

Posted on July 26, 2021May 17, 2023 by Emily Wilson

The 1934 Aerial Photography Mosaic created by UConn MAGIC is now on CT ECO for easy use in online and desktop GIS! Find it in the Aerial Imagery Viewer and as an image service. Learn more!1934 Historic Aerial Photography

Posted in News Tagged 1934, aerials, cteco, service, viewer

Natural Diversity Database and Aquifer Protection Areas Services

Posted on July 14, 2021May 17, 2023 by Emily Wilson

Natural Diversity Database and Aquifer Protection Areas updated services now coming from DEEP as feature layers. Continue reading →

Posted in Updates Tagged ctdeep, cteco, nddb, service, water

Connecticut Town Parcels

Posted on July 1, 2021May 17, 2023 by Emily Wilson

Connecticut town parcels are now available for viewing on CT ECO. Parcel Viewer graphic

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Posted in News Tagged cteco, parcels, service, viewer

Hillshade Raster Functions

Posted on November 12, 2020May 17, 2023 by Emily Wilson

More hillshade raster functions with different illumination angles added to the 2016 statewide elevation service and hillshade_se service.

Posted in Updates Tagged cteco, dem, elevation, image service, raster, service

2019 Flight

Posted on February 11, 2020May 17, 2023 by Emily Wilson

imagery icon The 2019 flight has been completed and is now on the CT ECO website!

Read More

Posted in News Tagged 2019, aerials, cteco, download, raster, service, viewer

Long Island Sound Blue Plan Viewer

Posted on February 1, 2020March 5, 2025 by Emily Wilson

LIS Blue Plan iconA viewer for the Long Island Sound Blue Plan is now part of CT ECO.

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Posted in Uncategorized Tagged coastal, ctdeep, cteco, viewer

Sea Level Rise Effects on Roads and Large Marshes Project

Posted on October 19, 2019May 17, 2023 by Emily Wilson

sea level rise iconThe The Sea Level Rise Effects on Roads and Large Marshes viewer displays impacts of modeled sea level rise on Connecticut’s 21 largest marshes and all coastal area roads.

Read More

Posted in News Tagged coastal, ctdeep, cteco, viewer
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UConn Center for Land Use Education and Research (CLEAR), UConn Extension

Phone: (860) 345-4511
E-mail: clear@uconn.edu

CT Dept. of Energy and Environmental Protection (DEEP)

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E-mail: deep.cteco@ct.gov

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About this Website

CT ECO is the collaborative work of the CT Dept. of Energy and Environmental Protection (DEEP) and the UConn's Center for Land Use Education and Research (CLEAR) and UConn Extension to make environmental and natural resource geographic information available. CT ECO's mission is to encourage, support, and promote informed land use decisions by providing convenient access to geographic information.

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