Research

DNS Coffee's zone file data provides a comprehensive view of the DNS ecosystem, useful for analysis and research.

Publications

Research that DNS Coffee has supported or is cited in:

Zombies in Alternate Realities: The Afterlife of Domain Names in DNS Integrations (2026)
Registration, Detection, and Deregistration: Analyzing DNS Abuse for Phishing Attacks (2025)
Path to Encrypted DNS with DDR: Adoption, Configuration Patterns, and Privacy Implications (2025)
DarkDNS: Revisiting the Value of Rapid Zone Update (2024)
SSAC Report on Registrar Nameserver Management (2024)
Everything in Its Right Place: Improving DNS Resilience (2023)
Malicious and Large-Scale Phenomena over the Internet: An Analysis based on DNS (2023)
Identifying DNS Infrastructure Hijacks using Large Scale Measurements (2022)
Retroactive Identification of Targeted DNS Infrastructure Hijacking (2022)
Domain Name Lifetimes: Baseline and Threats (2022)
On Unifying Diverse DNS Data Sources (2022)
Exploring the Characteristics and Security Risks of Emerging Emoji Domain Names (2022)
Mapping DNS DDoS Vulnerability to Improve Protection and Prevention (2022)
Risky BIZness: Risks Derived from Registrar Name Management (2021)
Unresolved Issues: Prevalence, Persistence, and Perils of Lame Delegations (2020)
DNS Baseline Dynamics (2019)
Who is .com? Learning to Parse WHOIS Records (2015)
From .academy to .zone: An Analysis of the New TLD Land Rush (2015)

Some publications may refer to DNS Coffee as DZDB, a name used when associated with CAIDA.

Presentations

DNS is Still Lame — ShmooCon (2024)
The TLDr on TLDs — HushCon (2022)
Lost and Found Certificates — DEF CON 26 (2018)
Pillaging DVCS Repos For Fun and Profit — DEF CON 19, ToorCon San Diego 13 (2011)

Citing DNS Coffee

If you use data provided by DNS Coffee in your research, please cite us using the following BibTeX entry:

@misc{dnscoffee,
	title        = {DNS Coffee: The DNS Historical Zone Database},
	author       = {Foster, Ian},
	url          = {https://dns.coffee},
	urldate      = {YYYY-MM-DD},
	organization = {dns.coffee}
}

Contact

For research inquiries, reach out to [email protected].