Svartlistcheck (Blacklist Check) is a monitoring service that continuously scans over 100 known blacklists to detect if a domain has been listed. The service performs daily automated searches across these blacklists and sends immediate alerts to users when their domain is discovered on any list. The tool addresses the issue of email deliverability, as email providers commonly use blacklists to protect users from spam. When a domain appears on a blacklist, it can result in emails being blocked or classified as spam by recipient email filters, potentially preventing important communications from reaching recipients and damaging domain reputation. When a domain is detected on a blacklist, the service sends an alert directly to the user's inbox, specifying which domain was found and on which blacklist. Users can then visit the specific blacklist's website to obtain more information about the reason for listing and the process for removal. The monitoring operates continuously and actively searches for newly blacklisted domains. This proactive approach enables users to take corrective actions to remove their domain from blacklists before it negatively impacts their business operations.