Cookie Policy
Last updated: March 2026
1. What Are Cookies?
Cookies are small text files saved to your device (computer, tablet, or smartphone) by your browser when you visit a website. They allow the site to recognize you, remember your preferences, and securely store session information.
Cookies are not harmful — they contain no executable code and cannot access files on your device. They are used solely to identify you and your preferences.
2. Why Do We Use Cookies?
At Hesaplabs, we use cookies for the following purposes:
- To securely maintain your session (keep you logged in)
- To remember your preferences such as language and theme
- To analyze which sections of the site receive the most interest
- To improve site performance and usability
- To personalize content and ads based on your interests
- To detect and resolve technical issues
3. Types of Cookies We Use
3.1 Essential Cookies
These cookies are strictly necessary for the site to function. Session management, security verification, and language preference fall into this category. The site cannot function properly without them and they cannot be disabled.
| Cookie Name | Purpose | Duration |
|---|---|---|
| hesaplabs_token | User session authentication | 7 days |
| hesaplabs_locale | Language preference (TR/EN) | 1 year |
| hesaplabs_theme | Light/dark mode preference | 1 year |
3.2 Analytics Cookies
These cookies help us understand how visitors use the site — which pages are most visited, how long users spend on the site, and which tools are most popular. All collected data is anonymized; we cannot personally identify you.
We use Google Analytics 4 (GA4). You can learn more about Google Analytics cookies and data processing at google.com/policies/privacy/partners.
| Cookie Name | Provider | Purpose | Duration |
|---|---|---|---|
| _ga | Google Analytics | Distinguishes users | 2 years |
| _ga_* | Google Analytics | Session state | 2 years |
| _gid | Google Analytics | Distinguishes users | 24 hours |
3.3 Advertising Cookies
Ads are served on our site through Google AdSense. AdSense uses the DART cookie and similar technologies to display personalized ads based on your interests, determined by your visits to hesaplabs.com and other websites.
If you do not wish to receive personalized ads, you can opt out at google.com/settings/ads.
| Cookie Name | Provider | Purpose | Duration |
|---|---|---|---|
| IDE | Google DoubleClick | Ad targeting | 1 year |
| NID | Ad preferences | 6 months | |
| test_cookie | Google DoubleClick | Tests browser cookie support | Session |
3.4 Functional Cookies
These cookies remember your preferences to make the site more useful. For example, your favorite calculators or recently used tools may be stored in your browser's local storage (localStorage). This data stays on your device only and is never sent to our servers.
4. Session and Persistent Cookies
Cookies are categorized by their lifespan:
- Session Cookies: Automatically deleted when you close your browser. Used for temporary functionality during a single browsing session.
- Persistent Cookies: Remain in your browser for a set period (listed in the tables above). Used to remember language and theme preferences across visits.
5. First-Party and Third-Party Cookies
- First-Party Cookies: Placed directly by hesaplabs.com. Includes session management and preference storage.
- Third-Party Cookies: Placed by external services such as Google Analytics and Google AdSense. The management of these cookies is subject to the respective service providers' policies.
6. How to Manage Cookies
You can block, delete, or selectively allow cookies using your browser settings:
- Google Chrome: Settings → Privacy and security → Cookies and other site data
- Mozilla Firefox: Settings → Privacy & Security → Enhanced Tracking Protection
- Safari: Preferences → Privacy → Manage Website Data
- Microsoft Edge: Settings → Cookies and site permissions → Manage cookies
Important Note: Disabling essential cookies may prevent core features such as logging in and remembering your language preference from working.
To opt out of Google Analytics tracking, you can also install the browser add-on available at tools.google.com/dlpage/gaoptout.
7. Changes to This Cookie Policy
We may update this policy in response to changes in law, services we use, or site improvements. When significant changes are made, we will revise the "Last updated" date at the top of this page. We recommend reviewing this page periodically.
8. Contact Us
If you have questions or requests regarding our cookie policy, please use our contact page.