🍪 What Are Cookies?

Cookies are small text files that are placed on your computer or mobile device when you visit a website. Cookies are widely used by website owners to make their websites work more efficiently and to provide reporting information.

Types of Cookies

Cookies can be categorized in several ways:

By Ownership

• First-party cookies: Set directly by ConcreteCalculate.com
• Third-party cookies: Set by third-party services like Google AdSense and Google Analytics

By Duration

• Session cookies: Temporary cookies that expire when you close your browser
• Persistent cookies: Remain on your device for a set period or until you manually delete them

By Purpose

• Strictly necessary cookies: Essential for the website to function
• Analytics cookies: Help us understand how visitors use our website
• Advertising cookies: Used to deliver relevant advertisements and track ad performance

🎯 Why We Use Cookies

ConcreteCalculate.com uses cookies for several reasons:

Essential Website Functionality

• Remember your calculator preferences and inputs during your session
• Ensure the website functions properly and securely
• Maintain your cookie consent preferences

Analytics and Performance

• Understand how visitors use our calculators and content
• Identify which calculators are most popular
• Measure website traffic and performance
• Improve our services based on user behavior

Advertising and Revenue

• Display relevant advertisements through Google AdSense
• Support the free operation of ConcreteCalculate.com
• Measure ad effectiveness and performance

📋 Cookies We Use

Below is a detailed list of the cookies ConcreteCalculate.com uses on our website:

1. Strictly Necessary Cookies

These cookies are essential for the website to function and cannot be disabled in our systems.

Cookie Name	Purpose	Duration
cookie_consent	Stores your cookie consent preferences	1 year
session_id	Maintains your browsing session	Session (deleted when browser closes)

2. Analytics Cookies (Google Analytics)

We use Google Analytics to understand how visitors interact with our website. These cookies help us improve our calculators and content.

Cookie Name	Purpose	Duration
_ga	Distinguishes unique users and tracks visitor behavior	2 years
_ga_*	Stores and counts pageviews (Google Analytics 4)	2 years
_gid	Distinguishes users for 24-hour tracking	24 hours
_gat	Throttles request rate to Google Analytics	1 minute

Google Analytics Privacy: Google Analytics collects aggregated, anonymized data about website traffic. For more information, visit Google’s Privacy Policy.

3. Advertising Cookies (Google AdSense)

ConcreteCalculate.com uses Google AdSense to display advertisements that support our free services. These cookies enable personalized advertising based on your browsing history.

Cookie Name	Purpose	Duration
_gcl_au	Google AdSense advertising cookie for tracking conversions	3 months
IDE	Used by Google DoubleClick to register user actions and target advertising	1 year
NID	Stores Google preferences and information for personalized ads	6 months
__gads	Registers user actions for ad targeting and measurement	1 year

Google AdSense Privacy: Google uses cookies to serve ads based on your prior visits to ConcreteCalculate.com and other websites. Learn more at Google’s Advertising Policies.

🔗 Third-Party Services That Use Cookies

Google Analytics

We use Google Analytics to analyze website traffic and user behavior. Google Analytics uses cookies to collect information such as:

• Number of visitors to our website
• Which pages are viewed and for how long
• Geographic location of visitors (country/state level)
• Device type (desktop, mobile, tablet)
• Traffic sources (search engines, direct visits, referrals)

This data is aggregated and anonymized. Google Analytics does not collect personally identifiable information unless you voluntarily provide it through contact forms.

Opt out: You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.

Google AdSense

We use Google AdSense to display advertisements on ConcreteCalculate.com. Google AdSense uses cookies to:

• Serve ads based on your browsing history and interests
• Prevent the same ad from appearing too frequently
• Measure ad performance and conversions
• Detect and prevent ad fraud

Google may share cookie data with advertisers and ad networks to deliver personalized ads across the web.

Opt out: You can manage personalized advertising preferences through Google Ads Settings or visit AboutAds.info to opt out of interest-based advertising.

⚙️ How to Manage and Control Cookies

You have the right to accept or reject cookies. Here are several ways to manage your cookie preferences:

1. Cookie Consent Banner

When you first visit ConcreteCalculate.com, you will see a cookie consent banner. You can:

• Accept all cookies: Allow all cookies including analytics and advertising
• Reject non-essential cookies: Only allow strictly necessary cookies
• Customize preferences: Choose which cookie categories to enable or disable

You can change your cookie preferences at any time by clicking the “Cookie Settings” link in our website footer.

2. Browser Settings

Most web browsers allow you to control cookies through their settings. You can:

• Block all cookies
• Block third-party cookies only
• Delete cookies when you close your browser
• Allow cookies from specific websites

How to manage cookies in popular browsers:

• Google Chrome: Settings → Privacy and Security → Cookies and other site data
• Firefox: Settings → Privacy & Security → Cookies and Site Data
• Safari: Preferences → Privacy → Manage Website Data
• Microsoft Edge: Settings → Cookies and site permissions → Cookies and site data

3. Opt Out of Personalized Advertising

To opt out of personalized ads from Google and other ad networks:

• Google Ads Settings – Manage Google personalized ads
• Digital Advertising Alliance Opt-Out – Opt out of interest-based ads from multiple companies
• Network Advertising Initiative Opt-Out – Opt out from NAI member companies

4. Do Not Track (DNT)

Some browsers support a “Do Not Track” (DNT) signal. However, there is no universal standard for DNT implementation, and ConcreteCalculate.com does not currently respond to DNT signals. We recommend using the cookie consent banner or browser settings to manage your preferences.

⚖️ Your Privacy Rights

GDPR Rights (European Users)

If you are located in the European Economic Area (EEA) or United Kingdom, you have the following rights under GDPR:

• Right to access: Request information about the data we collect through cookies
• Right to rectification: Request correction of inaccurate data
• Right to erasure: Request deletion of your data (subject to legal obligations)
• Right to restrict processing: Limit how we use your data
• Right to data portability: Receive your data in a structured, machine-readable format
• Right to object: Object to data processing for direct marketing purposes
• Right to withdraw consent: Withdraw cookie consent at any time

CCPA Rights (California Users)

If you are a California resident, you have the following rights under the California Consumer Privacy Act (CCPA):

• Right to know: Request information about the personal information we collect, use, and share
• Right to delete: Request deletion of your personal information
• Right to opt-out: Opt out of the sale or sharing of your personal information
• Right to non-discrimination: Equal service and pricing regardless of exercising your rights

Do Not Sell or Share My Personal Information: To opt out of data sharing with advertisers, adjust your cookie preferences using our cookie consent banner or contact us directly.

How to Exercise Your Rights

To exercise any of these rights, please contact us at:

Email: concretecalculate.com@gmail.com

We will respond to your request within the timeframe required by applicable law (typically 30 days).

🗄️ How Long Do We Keep Cookie Data?

Cookie data retention periods vary depending on the type of cookie:

• Session cookies: Deleted automatically when you close your browser
• Analytics cookies (Google Analytics): Up to 2 years, then automatically deleted
• Advertising cookies (Google AdSense): Up to 1 year, then automatically deleted
• Consent cookies: 1 year, then you’ll be asked to renew your preferences

You can delete cookies from your device at any time using your browser settings.

👶 Children’s Privacy

ConcreteCalculate.com is not intended for children under the age of 16. We do not knowingly collect personal information from children through cookies or any other means.

If you believe we have inadvertently collected information from a child under 16, please contact us immediately at concretecalculate.com@gmail.com and we will delete the information promptly.

📝 Changes to This Cookie Policy

We may update this Cookie Policy from time to time to reflect changes in:

• The cookies we use
• Cookie technologies and tracking methods
• Privacy laws and regulations
• Our website functionality and services

When we make changes, we will update the “Last Updated” date at the top of this page. We encourage you to review this Cookie Policy periodically to stay informed about how we use cookies.

Your continued use of ConcreteCalculate.com after changes to this Cookie Policy constitutes your acceptance of the updated policy.

📧 Contact Us About Cookies

If you have any questions about our use of cookies or this Cookie Policy, please contact us:

Email: concretecalculate.com@gmail.com

Visit our Contact Us page for more ways to reach us.