CSV import

Instead of adding domains one at a time, upload a CSV file from the dashboard ("Or import from CSV") or during onboarding. It is also the way to monitor a service on a port other than 443.

File format

One hostname per line. A second column with a port is optional; the default is 443.
A header row (hostname or hostname,port) is fine and is skipped.
URLs are accepted; the scheme and path are removed, so https://example.com/login becomes example.com.
Duplicate lines, and domains you already monitor, are skipped.

domains.csv

hostname,port
example.com,443
api.example.com,443
mail.example.com,8443

The dashboard has a Download sample CSV link with this exact file.

Limits

Limit	Value
File size	256 KB
Domains per account	50 on Pro (5 on Free)
Ports	1 to 65535

Import stops at your plan limit. The summary after upload shows how many rows were added, how many were skipped as invalid and how many were over the limit.

After the import

Imported domains are checked on the next scheduled run. To see results sooner, press Recheck on the rows you care about. Alerts follow the normal alert rules.

Last updated 2026-11-05

CSV import

Instead of adding domains one at a time, upload a CSV file from the dashboard ("Or import from CSV") or during onboarding. It is also the way to monitor a service on a port other than 443.

File format

One hostname per line. A second column with a port is optional; the default is 443.
A header row (hostname or hostname,port) is fine and is skipped.
URLs are accepted; the scheme and path are removed, so https://example.com/login becomes example.com.
Duplicate lines, and domains you already monitor, are skipped.

domains.csv

hostname,port
example.com,443
api.example.com,443
mail.example.com,8443

The dashboard has a Download sample CSV link with this exact file.

Limits

Limit	Value
File size	256 KB
Domains per account	50 on Pro (5 on Free)
Ports	1 to 65535

Import stops at your plan limit. The summary after upload shows how many rows were added, how many were skipped as invalid and how many were over the limit.

After the import

Imported domains are checked on the next scheduled run. To see results sooner, press Recheck on the rows you care about. Alerts follow the normal alert rules.

Last updated 2026-11-05