Parsing & classification progress
Extended provider map applying
Validation rules & performance notes
- Length limits: ≤ 254 chars overall, local ≤ 64, domain ≤ 253
- No leading/trailing dots in local or domain; no consecutive dots; valid TLD structure
- Allowed chars in local: A–Z a–z 0–9 and !#$%&'*+/=?^_`{|}~- plus dot separators
- Processing uses chunking to keep the UI responsive for 100k+ lines
- Extended detection maps private domains to providers (Office 365, Google Workspace, GoDaddy, Zoho, IONOS, Bluehost, HostGator, OVH, Namecheap, Proton, etc.)