1. Mark P. Andrews. 1998. Negative Caching of DNS Queries (DNS NCACHE). RFC 2308. (mar 1998). https://www.rfc-editor.org/info/rfc2308
2. David Barr. 1996. Common DNS Operational and Configuration Errors. RFC 1912. (feb 1996). https://www.rfc-editor.org/info/rfc1912
3. DNS Census2013. 2013. DNS Census2013. (2013). https://dnscensus2013.neocities.org/ Accessed: March 16, 2024.
4. Cloudfare 2023. 1.1.1.1 lookup failures on October 4, 2023. https://blog.cloudflare.com/1-1-1-1-lookup-failures-on-october-4th-2023. (2023). Accessed: March 16, 2024.
5. Incident Report for npm. 2018. DNS misconfiguration cached in ISP DNS caches. https://status.npmjs.org/incidents/v22ffls5cd6h. (2018). Accessed: March 16, 2024.