| nomadtax_session | NomadTaxSpain | Session identifier for authentication and security. | Session | necessary |
| _ga | Google Analytics | Distinguishes users for Analytics reports. | 13 months | analytics |
| _ga_123456 | Google Analytics | Persists session state for Google Analytics 4. | 13 months | analytics |
| _gid | Google Analytics | Stores and updates a unique value for each page visited. | 24 hours | analytics |
| _gat_gtag_UA_XXXXXXX_1 | Google Analytics | Throttles request rate to Google Analytics. | 1 minute | analytics |
| _fbp | Meta Pixel | Stores a unique ID for advertisement delivery. | 3 months | marketing |
| fr | Meta Pixel | Combines browser and user unique ID for targeted advertising. | 3 months | marketing |
| cookie_consent | NomadTaxSpain | Stores the user's cookie preferences. | 13 months | necessary |