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Cloudflare Information & Resources

Essential Cloudflare information for developers and system administrators

Useful Links & Resources
Official Cloudflare Resources
Documentation & Guides
Community & Support
Tools & Testing
Cloudflare DNS
IPv4 DNS Servers
Public DNS
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IPv6 DNS Servers
Public DNS
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DNS over HTTPS (DoH)
Public DNS
https://cloudflare-dns.com/dns-query
Block Malware
https://security.cloudflare-dns.com/dns-query
Block Malware + Adult Content
https://family.cloudflare-dns.com/dns-query
DNS over TLS (DoT)
Public DNS
cloudflare-dns.com
Block Malware
security.cloudflare-dns.com
Block Malware + Adult Content
family.cloudflare-dns.com
Cloudflare IP Ranges for Whitelisting

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Cloudflare Origin CA Certificate

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Certificate Details:
  • Issuer: Cloudflare Origin SSL Certificate Authority
  • Valid From: August 23, 2019
  • Valid Until: August 15, 2029
  • Key Algorithm: RSA 2048-bit
  • Signature Algorithm: SHA256 with RSA