Records
14,962,064
File size
216.93 MB
Coverage
Full Database
About this dataset
Collection of domains with active SSL/TLS certificates. Includes HTTPS-enabled websites worldwide.
This extract is processed through the WebTrackly pipeline to ensure accuracy, consistency, and rapid delivery. Domains with SSL Certificates is ready for analysis the moment you download — no waiting period, no application process.
Schema
domainThe fully qualified domain name (e.g., example.com).
metadataAssociated registration and DNS metadata where available.
Sample data
Preview — first rows of the file
domain · CSV
domain
Sample available after download.
Use cases
Marketing & Lead Generation
Reach domain owners with tailored campaigns and build targeted prospect lists at scale.
Market Research
Analyze trends, technology adoption, and industry patterns across a broad cross-section of the web.
Security & Compliance
Monitor registrations for brand protection and threat intelligence — detect phishing and suspicious patterns.
Brand Monitoring
Scan for variations of brand terms to identify cybersquatting and typosquatting before they cause harm.
Frequently asked questions
How many domains are included in the SSL certificate database?
This dataset contains nearly 15 million domains that have been verified to have active SSL/TLS certificates. The collection covers domains across all major top-level domains (TLDs) and is regularly updated to maintain accuracy.
What does an SSL certificate indicate about a domain?
An SSL certificate indicates that a domain uses encrypted HTTPS connections to protect data in transit. Domains with valid SSL certificates are more likely to be active businesses, e-commerce sites, financial institutions, or security-conscious organizations, making them higher-quality targets for research and outreach.
How can I use this data for lead generation?
You can use the SSL domains database directly to identify businesses that invest in web security — ideal prospects for hosting, development, and managed IT services. Alternatively, cross-reference it with zone file data to find domains without SSL certificates, creating targeted prospect lists for SSL certificate vendors and security consultants.
In what format is the dataset delivered?
The dataset is delivered in a structured, downloadable format that can be directly imported into databases, spreadsheets, or data analysis tools. Each record includes the fully qualified domain name and associated metadata for easy filtering and processing.
How frequently is the SSL certificate data updated?
WebTrackly continuously scans the global domain space and validates SSL certificates. The dataset is updated regularly to reflect current certificate deployment, ensuring you receive accurate and up-to-date information about which domains maintain active SSL certificates.