Question
What IP addresses do Sectigo DCV requests originate from?
Answer
Sectigo's DCV request origin IPs are these:
- 178.255.81.12
- 178.255.81.13
- 91.199.212.132
- 199.66.201.132
- 91.199.212.52
- 2a02:1788:400:1ce4::/64
To ensure that Sectigo DCV requests for AutoSSL reach your server, you must whitelist these IP addresses for port 53 (TCP & UDP) and port 80 (TCP).