u/Jumpy_Fan_1228

I built a Whop product for teams that need to notice DNS changes without handing raw DNS records or credentials to a third party.

What it includes:

- buyer-owned domains only

- scheduled snapshot comparison

- hash-only change events

- step-by-step Courses guide for the public Apify workflow

- no implementation service or incident response

It is $29.99/month. I made the product, so this is self-promotion.

https://whop.com/dns-sentinel/

I made a small bulk email verifier for Apify after deciding that SMTP reachability was too invasive for a simple list-checking tool.

It checks:

- syntax

- DNS MX

- disposable domains

- role-based addresses such as support@ and sales@

- a transparent 0–100 heuristic score

It returns one structured result per unique input, up to 500 addresses.

The boundary is intentional:

- no SMTP connection

- no RCPT TO

- no email sending

- no mailbox discovery

So “valid” means the syntax and domain-level signals passed. It is not a guarantee that an individual mailbox exists.

I’ve run 4/4 local tests. The public Actor is pay-per-event at $1 per 1,000 billable results. There are no external paid runs yet; I’m sharing the actual state rather than claiming traction.

I’d appreciate blunt feedback on whether this narrower, read-only design is useful.

Public Actor: https://apify.com/invaluable_rondeau/email-verifier-bulk

Disclosure: I built this and the link is mine.