Monthly visits
Not availableData as of Oct 24, 2026B
Email Marketing
BillionVerify
Verify email addresses and clean mailing lists before sending
Bbillionverify.comNo site preview yet
What it does
- Paste an email address or upload a CSV or XLSX list to check syntax, domains, and receiving mail servers.
- Review validation statuses and connect the API to signup forms or customer systems.
Made for
Who is it for?
For marketing and product teams validating submitted addresses and maintaining their mailing lists.
Top alternatives
Compare features, prices, and free plans
| Tool | Price | What's free | Best for |
|---|---|---|---|
| BBillionVerify | From $96/yr | The free plan provides 20 credits daily, up to 600 monthly, for single-address verification; credits do not expire. | Verify email addresses and clean mailing lists before sending |
| EEmail Verifier | Pay as you go, from $18 | Includes 100 free verifications with no credit card; no recurring refill is stated. | Validate email lists and flag invalid or risky addresses |
| VValidemail.co | From $11.08/mo | Get 50 free validations without a card. The paid plan is EUR 9.90/month excluding VAT. | Validate email addresses and clean mailing lists before sending |
| EEmailsConfirmed | $150 one-time | Sign up for 100 free verifications without a credit card. | Upload email lists and export validated results |
Prices and free limits can change. Check the official site for the latest details.
The business behind the tool
What should you build next?
See what tools earn, how crowded the market is, and how long a solo build might take. Get a build, wait, or skip verdict, with lessons from successes and failures.
These are sample assessments, not final recommendations. We don't guess at missing revenue, traffic, or build times.
Monthly recurring revenue (USD)
$1,292Data as of Oct 24, 2026Launched
Jan 2026Data as of Oct 24, 2026Founders
1Data as of Oct 24, 2026Worth building? Look at the evidence
Higher is better (out of 5)Demand Estimate
Trends, anchor-relative interest, and growth are unavailable; 33 unique suggestion long tails. Demand is estimated only from suggestion count.
3/5
3/5
Room to compete
Not available
Edge over free options
Not available
Can you build it solo? Estimate
Initial assessment: Basic format and domain checks are easy to implement, but SMTP validation, batch queues, and complex email address statuses require additional engineering effort.
3/5
Finding customers Estimate
Initial assessment: Email verification and mailing list cleaning have direct demand terms, and users can be reached through search or API integrations.
5/5
Willingness to pay Estimate
Initial assessment: Marketing and product teams need to reduce delivery problems caused by invalid addresses, providing motivation to pay for ongoing verification.
4/5
Higher scores mean better prospects. These are sample assessments, not investment advice.